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Registration Dossier
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EC number: 448-260-8 | CAS number: 379268-96-9
Toxicological information
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12 - 22 Aug 2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP - guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Version / remarks:
- adopted 2002
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
- Version / remarks:
- adopted 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.2500 (Acute Dermal Irritation)
- Version / remarks:
- adopted august 1998
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Japanese Ministry of Agriculture, Forestry and Fisheries (JMAFF), adopted Nov 2000
- Deviations:
- no
- GLP compliance:
- yes
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): UM-235
- Physical state: white powder
- Lot/batch No.: #SI-1
- Expiration date of the lot/batch: 01 Jan 2005
- Storage condition of test material: room temperature in the dark
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River Deutschland, Kisslegg, Germany
- Age at study initiation: 6 weeks
- Weight at study initiation: at least 1.0 kg
- Housing: individually in cages with perforated floors (Scanbur, Denmark)
- Diet: standard laboratory diet (Charles River Breeding and Maintenance Diet for Rabbits, Altromin), approximately 100 g per day, pressed hay was provided twice a week
- Water: tap water, ad libitum
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 17.4 - 22 (actual range)
- Humidity (%): 48 - 89 (actual range)
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12 / 12
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- other: watery ethanol (50% v/v)
- Controls:
- other: not required, untreated sites of the same animal served as control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied: 0.5 g
VEHICLE
- Amount(s) applied: 0.5 g test substance was moistened with 0.5 mL vehicle prior to application
- Concentration (if solution): 50 % (v/v) - Duration of treatment / exposure:
- 4 hours
- Observation period:
- 14 days
Reading time point: 1, 24, 48 and 72 h - Number of animals:
- 3
- Details on study design:
- TEST SITE
- Area of exposure: 6 cm², dorsal area
- Type of wrap if used: metalline patch mounted on micropore tape, which was wrapped around the abdomen and secured with Coban elastic bandage
REMOVAL OF TEST SUBSTANCE
- Washing: using water and vehicle
- Time after start of exposure: 4 h
SCORING SYSTEM: Draize scoring system
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- other: mean over 24, 48 and 72 hours
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 hours
- Remarks on result:
- other: erythema was only noted at the edges of the application area
- Irritation parameter:
- erythema score
- Basis:
- mean
- Remarks:
- out of animal #2 and #3
- Time point:
- other: mean over 24, 48 and 72 hours
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: reversibility: not applicable
- Irritation parameter:
- edema score
- Basis:
- mean
- Remarks:
- out of all 3 animals
- Time point:
- other: mean over 24, 48 and 72 hours
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: reversibility: not applicable
- Irritant / corrosive response data:
- 1/3 animals had very slight erythema at the edges of the application area. The skin irritation in this animal had completely resolved within 48 hours after exposure. No edema was noted.
- Other effects:
- No other effects were observed.
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- CLP: not classified
DSD: not classified
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