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Diss Factsheets
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EC number: 272-574-2 | CAS number: 68890-66-4
- 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_toxicological-information.png)
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1974
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No OECD Guideline study but according to accepted scientific standards at time of performance, sufficiently documented and no unacceptable deviations
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 974
- Report date:
- 1974
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- Sufficient documentation to accept data
- Test type:
- standard acute method
- Limit test:
- no
Test material
- Reference substance name:
- Octopirox
- IUPAC Name:
- Octopirox
- Reference substance name:
- Piroctone olamine
- IUPAC Name:
- Piroctone olamine
- Reference substance name:
- 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
- EC Number:
- 272-574-2
- EC Name:
- 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
- Cas Number:
- 68890-66-4
- Molecular formula:
- C14H23NO2.C2H7NO
- IUPAC Name:
- 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2(1H)-one, compound with 2-aminoethanol (1:1)
- Reference substance name:
- 1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2-pyridone, 2-aminoethanol salt
- IUPAC Name:
- 1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2-pyridone, 2-aminoethanol salt
Constituent 1
Constituent 2
Constituent 3
Constituent 4
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Weight at study initiation: 84 - 110 g
- Diet (e.g. ad libitum): Altromin 1324 ad libitum
- Water (e.g. ad libitum): Tap water ad libitum
- Acclimation period: Yes
ENVIRONMENTAL CONDITIONS
- Temperature (°C):
- Humidity (%):
- Air changes (per hr):
- Photoperiod (hrs dark / hrs light):
IN-LIFE DATES: From: To:
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- other: sesame oil
- Details on oral exposure:
- - Concentration in vehicle: 25%
- Doses:
- 4000 / 6300 / 7100 / 8000 / 9000 / 10000 / 15000 mg/kg body weight
- No. of animals per sex per dose:
- 10
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Clinical observations once daily / Weighing once weekly
- Necropsy of survivors performed: yes - Statistics:
- Probit analysis
Results and discussion
Effect levels
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- 8 100 mg/kg bw
- Mortality:
- see table 1
- Clinical signs:
- other: disequilibrium, dyspnoe, convulsions
- Gross pathology:
- Dissection of rats killed at the end of the observation period revealed no macroscopic findings
Any other information on results incl. tables
Table 1: Mortality
Dose (mg/kg body weight) | Mortality rate |
4000 | 0 / 10 |
6300 | 0 / 10 |
7100 | 1 / 10 |
8000 | 7 / 10 |
9000 | 6 / 10 |
10000 | 10 / 10 |
15000 | 10 / 10 |
Applicant's summary and conclusion
- Interpretation of results:
- practically nontoxic
- Remarks:
- Migrated information Criteria used for interpretation of results: expert judgment
- Conclusions:
- The median lethal dose of Piroctone Olamine (LD50) was 8100 (7660-8570) mg per kg body weight. Based on the result of this study Piroctone Olamine is not subject for labelling and classification requirements according to regulatory requirements
- Executive summary:
The acute oral toxicity of Octopirox was investigated in rats using suspensions in sesame oil at a concentration of 25%. 10 female SPF-Wistar rats each were administered Octopirox by single-dose gavage at dose levels of 4000, 6300, 7100, 8000, 9000, 10000 or 15000 mg/kg body weight and were observed for 14 days. After application the animals showed the following symptoms: Disequilibrium, dyspnoe and convulsions. Gross pathology of lethally intoxictaed rats as well as of all rats at the end of the observation period revealed no remarkable macroscopic findings. The median lethal dose (LD50) was calculated to be 8100 mg/kg body weight.
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.
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