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EC number: 306-621-6 | CAS number: 97338-28-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
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- Particle size distribution (Granulometry)
- Vapour pressure
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- Auto flammability
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- Stability: thermal, sunlight, metals
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- Dissociation constant
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- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
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- Nanomaterial specific surface area
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- Nanomaterial surface chemistry
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- Endpoint summary
- Stability
- Biodegradation
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- 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
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- Biotransformation and kinetics
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- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
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- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
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- Specific investigations
- Exposure related observations in humans
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- Additional toxicological data

Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12 - 26 Feb 1998
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Remarks:
- The test substance was applied using an occlusive dressing.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 998
- Report date:
- 1998
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- Deviations:
- yes
- Remarks:
- occlusive dressing
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.3 (Acute Toxicity (Dermal))
- Deviations:
- yes
- Remarks:
- occlusive dressing
- GLP compliance:
- yes
- Test type:
- standard acute method
- Limit test:
- yes
Test material
Constituent 1
Test animals
- Species:
- rat
- Strain:
- other: Wistar Crl:(WI)
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River, Sulzfeld, Germany
- Age at study initiation: approximately 8 weeks
- Weight at study initiation: 292 ± 13 g (mean ± SD, males); 199 ± 9 (mean ± SD, females)
- Fasting period before study: no
- Housing: animls were individually housed in labelled polycarbonate cages containing purified sawdust as bedding material (Woody SPF, supplied by B.M.I., Helmond, the Netherlands)
- Diet: standard pelleted laboratory animal diet (Carfil Quality BVBA, Oud-Turnhout, Belgium), ad libitum
- Water: tap water, ad libitum
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21
- Humidity (%): 50
- Air changes (per hr): approximately 15
- Photoperiod (hrs dark / hrs light): 12/12
IN-LIFE DATES: From: 12 Feb 1998 To: 26 Feb 1998
Administration / exposure
- Type of coverage:
- occlusive
- Vehicle:
- unchanged (no vehicle)
- Details on dermal exposure:
- TEST SITE
- Area of exposure: the test substance was applied to an area of approximately 25 cm² for males and 18 cm² for females, using a gauze patch measuring 5x 5 cm and 3.5 x 5 cm, respectively
- % coverage: approximately 10% of total body surface
- Type of wrap if used: the gauze patch was fixed to aluminium foil and held in place with Coban elastic bandage (with drops of petrolatum). A piece of Micropore tape was used for additional fixation of the dressings in females only.
REMOVAL OF TEST SUBSTANCE
- Washing (if done): residual test substance was removed using a tissue moistened with tap water
- Time after start of exposure: 24 h
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 2000 mg/kg bw (10 mL/kg bw) - Duration of exposure:
- 24 h
- Doses:
- 2000 mg/kg bw
- No. of animals per sex per dose:
- 5
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: the animals were observed twice daily for mortality; clinical signs were observed at periodic intervals during the dosing day and once daily for the rest of the study period; the body weight was measured on Day 1 (pre-administration), 8 and 15
- Necropsy of survivors performed: yes, the animals were examined for macroscopic abnormalities
Results and discussion
Effect levels
- Key result
- Sex:
- male/female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- There was no mortality during the study period (see Table 1).
- Clinical signs:
- Red staining of the neck fur (score 1 of 3) was observed in 1/5 females on Day 8-13. This is an effect that is frequently seen in rats under stressful conditions and is therefore not considered to be toxicologically relevant. No other clinical signs were noted in any animals during the study period.
- Body weight:
- The body weight gains were within the normal ranges in males and females during the whole study period.
- Gross pathology:
- The necropsy and histopathological examination did not revealed any substance-related findings.
Any other information on results incl. tables
Table 1: mortality and clinical signs
Dose |
Toxicological results* |
Duration of clinical signs |
Time of death |
Mortality (%) |
Males |
||||
2000 |
0/0/5 |
- |
- |
0 |
Females |
||||
2000 |
0/1/5 |
Day 8-13 |
- |
0 |
Overall LD50 > 2000 mg/kg bw |
* first number = number of dead animals
second number = number of animals with systemic clinical signs
third number = number of animals used
Applicant's summary and conclusion
- Interpretation of results:
- other: CLP/EU GHS criteria not met, no classification required according to Regulation (EC) No 1272/2008.
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