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EC number: 201-983-0 | CAS number: 90-30-2
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: not specified
- Test type:
- not specified
- Water media type:
- not specified
- Total exposure duration:
- 48 h
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.26 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Validity criteria fulfilled:
- not specified
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication which meets basic scientific principles
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- 48h acute bioassay using Daphnia magna as test organism (following recommendations of US-EPA)
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Details on sampling:
- not applicable
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: adding ethanol stock solutions of PNA to water
- Controls: yes, blank and solvent control
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): ethanol (0.5 mL/L water) - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: waterflea
- Source: biological supply house
- Age at study initiation (mean and range, SD): 12 +/- 12 hours, first instar
- Method of breeding: stock cultures with regular subculturing (method of Dewey and Parker), in 4L polyethylene separatory funnels
- Feeding during test
- Food type: no
ACCLIMATION
- Acclimation period: stock cultures with regular subculturing
- Acclimation conditions (same as test or not): yes
- Type and amount of food: baker's yeast, chlorophyll and algae (Chlorella pyrenoidosa) - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 44 mg/L as CaCO3
- Test temperature:
- 20 ± 2°C
- pH:
- 7.2-7.6
- Dissolved oxygen:
- not specified
- Nominal and measured concentrations:
- Nominal: 0, 0.13, 0.22, 0.36, 0.60 and 1.0 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel:
- Material, size, headspace, fill volume: culture dishes containing 100 mL test solution
- Aeration: no data
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 1
- No. of vessels per vehicle control (replicates): 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: soft reconstituted freshwater, recommended by US EPA for culture and testing of freshwater invertebrates; reagent-grade, deionized water (> 10megohm-cm), filtered through activated carbon and a 0.2 µm particle filter in a Barnstead NANOpure water purification unit
- Alkalinity: 30-35 mg/L as CaCO3
- Culture medium different from test medium: no
OTHER TEST CONDITIONS
- Adjustment of pH: no data
- Photoperiod: 16 h light: 8 h darkness
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): immobilisation - Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.3 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 0.25-0.35
- Details on results:
- - Mortality of control: blank control 5% (1/20), solvent control 15% (3/20) after 48 h
- Reported statistics and error estimates:
- LC50 values and their 95% confidence intervals were calculated by the moving average method of Thompson when the data permitted (constant dilution factor between the toxicant concentration). Otherwise, the LC50 was estimated by the method of Litchfield and Wilcoxon which requires at least two concentrations producing partial mortalities. If this method could not be used, the LC50 was estimated by graphical interpolation.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The test substance showed to be acutely very toxic to Daphnia magna in a bioassay screening the acute toxicity (48h) of the test substance.
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study following national guideline (of South Korea)
- Qualifier:
- according to guideline
- Guideline:
- other: Acute toxicity testing Daphnia magna of Notification No. 1997-9 of NIER adopted in 1997
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: 82g of test substance was put in a flask of 10 mL volume and a drop of HCO-40 was included then, DMSO was added up to the demarcation lineto prepare solution with a concentration of 8000 mg/L. The solution was diluted for use. The study solution was prepared for each concentration by putting stock solution into the same amount of the diluted water.
- Controls: Only diluted water was used for control groups. solvent control group was prepared by putting a drop of HCO-40 into a flask of 10 mL and adding DMSO up to the demarcated line. The same amount used for the highest concnetration was put into the diluted water.
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): HCO-40, DMSO
- Concentration of vehicle in test medium (stock solution and final test solution): not specified - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: water flea
- Source: in-house culture
- Age at study initiation (mean and range, SD): < 24h
- Feeding during test: no
ACCLIMATION
- Acclimation period: not specified
- Acclimation conditions (same as test or not): same
- Type and amount of food: 10E5 cells/mL Scenedesmus subspicatus
- Feeding frequency: daily - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 174 mg/L as CaCO3
- Test temperature:
- 20.1 - 20.7 °C
- pH:
- 7.11- 7.31
- Dissolved oxygen:
- 8.3 - 8.6 mg/L
- Nominal and measured concentrations:
- Nominal: 0.05, 0.1, 0.2, 0.4 and 0.8 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel: 150 mL crystallizing dish with 100 mL test solution
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 3
- No. of vessels per control (replicates): 3
- No. of vessels per vehicle control (replicates): 3
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: according to US-EPA guideline EPA/600/4-85/013 adopted in 1985
- Alkalinity: 114 mg/L as CaCO3
- Culture medium different from test medium: no
- Intervals of water quality measurement: Dissolved oxygen and pH were measured at the start and the end of the study.
OTHER TEST CONDITIONS
- Photoperiod: 16h light/ 8h dark
- Light intensity: 1840 - 2180 lux
EFFECT PARAMETERS MEASURED: Immobilisation was recorded after 24 and 48h test duration. - Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.58 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 0.55 -0.62 mg/L
- Details on results:
- - Behavioural abnormalities: none
- Mortality of control: no
- Other adverse effects control: no - Validity criteria fulfilled:
- not specified
- Conclusions:
- The test substance showed to be acutely very toxic to Daphnia magna in a bioassay screening the acute toxicity (48h) of the test substance.
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication which meets basic scientific principles
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- 48h acute bioassay using Daphnia magna as test organism (following recommendations of US-EPA)
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: adding ethanol stock solutions of PNA to water
- Controls: yes, blank and solvent control
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): ethanol (0.2 mL/L water) - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Source: biological supply house
- Age at study initiation (mean and range, SD): 12 +/- 12 hours, first instar
- Method of breeding: stock cultures with regular subculturing (method of Dewey and Parker), in 4L polyethylene separatory funnels
- Feeding during test
- Food type: no
ACCLIMATION
- Acclimation period: stock cultures with regular subculturing
- Acclimation conditions (same as test or not): yes
- Type and amount of food: baker's yeast, chlorophyll and algae (Chlorella pyrenoidosa) - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 44 mg/L as CaCO3
- Test temperature:
- 20 ± 2 °C
- pH:
- 7.2-7.6
- Dissolved oxygen:
- not specified
- Nominal and measured concentrations:
- Nominal: 0, 0.08, 0.13, 0.22, 0.36, 0.60 and 1.0 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel:
- Material, size, headspace, fill volume: culture dishes containing 100 mL test solution
- Aeration: no data
- Renewal rate of test solution (frequency/flow rate): animals were transferred to fresh solutions after 24 h of exposure
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 1
- No. of vessels per vehicle control (replicates): 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: soft reconstituted freshwater, recommended by US EPA for culture and testing of freshwater invertebrates; reagent-grade, deionized water (> 10megohm-cm), filtered through activated carbon and a 0.2 µm particle filter in a Barnstead NANOpure water purification unit
- Alkalinity: 30-35 mg/L as CaCO3
- Culture medium different from test medium: no
OTHER TEST CONDITIONS
- Adjustment of pH: no data
- Photoperiod: 16 h light: 8 h darkness
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): mortality (lack of movement) - Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.67 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 0.50-0.90
- Details on results:
- - Mortality of control: blank control 0% (0/10), solvent control 10% (1/10) after 48 h
- Reported statistics and error estimates:
- LC50 values and their 95% confidence intervals were calculated by the moving average method of Thompson when the data permitted (constant dilution factor between the toxicant concentration). Otherwise, the LC50 was estimated by the method of Litchfield and Wilcoxon which requires at least two concentrations producing partial mortalities. If this method could not be used, the LC50 was estimated by graphical interpolation.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The test substance showed to be acutely very toxic to Daphnia magna in a bioassay screening the acute toxicity (48h) of the test substance.
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication which meets basic scientific principles
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- 48h acute bioassay using Daphnia magna as test organism (following recommendations of US-EPA)
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Details on sampling:
- not applicable
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: adding ethanol stock solutions of PNA to water
- Controls: yes, blank and solvent control
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): ethanol (0.33 mL/L water) - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: Waterflea
- Source: biological supply house
- Age at study initiation (mean and range, SD): 7 +/- 1 days, adults
- Method of breeding: stock cultures with regular subculturing (method of Dewey and Parker), in 4L polyethylene separatory funnels
- Feeding during test
- Food type: no
ACCLIMATION
- Acclimation period: stock cultures with regular subculturing
- Acclimation conditions (same as test or not): yes
- Type and amount of food: baker's yeast, chlorophyll and algae (Chlorella pyrenoidosa) - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 44 mg/L as CaCO3
- Test temperature:
- 20 ± 2 °C
- pH:
- 7.2-7.6
- Dissolved oxygen:
- not specified
- Nominal and measured concentrations:
- Nominal: 0, 0.13, 0.22, 0.36, 0.60 and 1.0 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel:
- Material, size, headspace, fill volume: culture dishes containing 100 mL test solution
- Aeration: no data
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 1
- No. of vessels per vehicle control (replicates): 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: soft reconstituted freshwater, recommended by US EPA for culture and testing of freshwater invertebrates; reagent-grade, deionized water (> 10megohm-cm), filtered through activated carbon and a 0.2 µm particle filter in a Barnstead NANOpure water purification unit
- Alkalinity: 30-35 mg/L as CaCO3
- Culture medium different from test medium: no
OTHER TEST CONDITIONS
- Adjustment of pH: no data
- Photoperiod: 16 h light: 8 h darkness
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): immobilisation - Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.68 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 0.53-0.88
- Details on results:
- - Mortality of control: blank control 10% (2/20), solvent control 5% (1/20) after 48 h
- Reported statistics and error estimates:
- LC50 values and their 95% confidence intervals were calculated by the moving average method of Thompson when the data permitted (constant dilution factor between the toxicant concentration). Otherwise, the LC50 was estimated by the method of Litchfield and Wilcoxon which requires at least two concentrations producing partial mortalities. If this method could not be used, the LC50 was estimated by graphical interpolation.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The test substance showed to be acutely very toxic to Daphnia magna in a bioassay screening the acute toxicity (48h) of the test substance.
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well documented publication which meets basic scientific principles
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- 48h acute bioassay using Daphnia magna as test organism (following recommendations of US-EPA)
- GLP compliance:
- not specified
- Analytical monitoring:
- no
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: adding ethanol stock solutions of PNA to water
- Controls: yes, blank and solvent control
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): ethanol (0.2 mL/L water) - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Common name: Waterflea
- Source: biological supply house
- Age at study initiation (mean and range, SD): 12 +/- 12 hours, first instar
- Method of breeding: stock cultures with regular subculturing (method of Dewey and Parker), in 4L polyethylene separatory funnels
- Feeding during test
- Food type: no
ACCLIMATION
- Acclimation period: stock cultures with regular subculturing
- Acclimation conditions (same as test or not): yes
- Type and amount of food: baker's yeast, chlorophyll and algae (Chlorella pyrenoidosa) - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 170 mg/L as CaCO3
- Test temperature:
- 20 ± 2 °C
- pH:
- 7.2-7.6
- Dissolved oxygen:
- not specified
- Nominal and measured concentrations:
- Nominal: 0, 0.08, 0.13, 0.22, 0.36, 0.60 and 1.0 mg/L
- Details on test conditions:
- TEST SYSTEM
- Test vessel:
- Material, size, headspace, fill volume: culture dishes containing 100 mL test solution
- Aeration: no data
- Renewal rate of test solution (frequency/flow rate): animals were transferred to fresh solutions after 24 h of exposure
- No. of organisms per vessel: 5
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 1
- No. of vessels per vehicle control (replicates): 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: soft reconstituted freshwater, recommended by US EPA for culture and testing of freshwater invertebrates; reagent-grade, deionized water (> 10megohm-cm), filtered through activated carbon and a 0.2 µm particle filter in a Barnstead NANOpure water purification unit
- Alkalinity: 30-35 mg/L as CaCO3
- Culture medium different from test medium: no
OTHER TEST CONDITIONS
- Adjustment of pH: no data
- Photoperiod: 16 h light: 8 h darkness
EFFECT PARAMETERS MEASURED (with observation intervals if applicable): immobilisation - Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 0.68 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 0.53-0.88
- Details on results:
- - Mortality of control: blank control 0% (0/10), solvent control 10% (1/10) after 48 h
- Reported statistics and error estimates:
- LC50 values and their 95% confidence intervals were calculated by the moving average method of Thompson when the data permitted (constant dilution factor between the toxicant concentration). Otherwise, the LC50 was estimated by the method of Litchfield and Wilcoxon which requires at least two concentrations producing partial mortalities. If this method could not be used, the LC50 was estimated by graphical interpolation.
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- The test substance showed to be acutely very toxic to Daphnia magna in a bioassay screening the acute toxicity (48h) of the test substance.
Referenceopen allclose all
Cumulative mortalities:
0.13 mg/L: 0% after 24 hours, 5% after 48 hours
0.22 mg/L: 0% after 24 hours, 30% after 48 hours
0.36 mg/L: 0% after 24 hours, 55% after 48 hours
0.60 mg/L: 0% after 24 hours, 100% after 48 hours
1.00 mg/L: 50% after 24 hours, 90% after 48 hours
Cumulative mortalities:
0.08 mg/L: 0% after 24 and 48 hours
0.13 mg/L: 0% after 24 and 48 hours
0.22 mg/L: 0% after 24 and 48 hours
0.36 mg/L: 10% after 24 and 48 hours
0.60 mg/L: 30% after 24 hours, 40% after 48 hours
1.00 mg/L: 70% after 24 hours, 80% after 48 hours
Cumulative mortalities:
0.13 mg/L: 5% after 24 hours, 5% after 48 hours
0.22 mg/L: 10% after 24 hours, 20% after 48 hours
0.36 mg/L: 0% after 24 hours, 5% after 48 hours
0.60 mg/L: 5% after 24 hours, 50% after 48 hours
1.00 mg/L: 0% after 24 hours, 65% after 48 hours
Cumulative mortalities:
0.08 mg/L: 0% after 24 and 48 hours
0.13 mg/L: 0% after 24 and 48 hours
0.22 mg/L: 0% after 24 and 48 hours
0.36 mg/L: 0% after 24 and 48 hours
0.60 mg/L: 30% after 24 hours, 40% after 48 hours
1.00 mg/L: 70% after 24 hours, 80% after 48 hours
Description of key information
EC50(48h) = 0.3 mg/L (nominal, vehicle) for Daphnia magna (US-EPA method)
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 0.3 mg/L
Additional information
Several studies investigating the short-term toxicity of N-1-naphthylanilin to aquatic invertebrates are available. In the key study, the toxicity of the test substance to Daphnia magna was tested in a static system with soft water following US EPA recommendations (Sikka et al. 1981). Nominal concentrations of 0, 0.13, 0.22, 0.36, 0.60 and 1.00 mg/L were tested, with ethanol as solvent. This study yielded an EC50 value for immobilisation (48h) of 0.3 mg/L. Similar results were obtained in supporting studies, conducted during the same comprehensive investigation under varying conditions (Sikka et al. 1981). For adult Daphnia, an EC50 value (48h) of 0.68 mg/L was obtained in a static test system with soft water, and for first-instar Daphnia, additional EC50 values (48h) of 0.68 mg/L and 0.67 mg/L resulted from exposure in a semi-static test system witht hard water and soft water, respectively. During these two studies, nominal concentrations of 0, 0.08, 0.13, 0.22, 0.36, 0.60 and 1.0 mg/L were tested. Another study performed by the South Korean Ministry of Environment resulted in a comparable 48h-EC50 value for Daphnia magna of 0.58 mg/L. In order to be sufficently conservative, the lowest available 48h-EC50 value was used for the chemical safety assessment of the substance. The study obtained in the J-CHECK database of the Japanese Ministry of Environment was not considered for the hazard assessment, since man important information for a proper Klimisch rating is missing.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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