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EC number: 935-847-3 | CAS number: 1369773-39-6
Toxicological information
Skin irritation / corrosion
Currently viewing:
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 8-25 January 2008
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- AHU377
- Cas Number:
- 1369773-39-6
- IUPAC Name:
- AHU377
- Test material form:
- solid: particulate/powder
- Details on test material:
- Molecular formula
C48H56CaN2O10
Molecular weight
861.04
Description
White to off-white powder
Batch
0722008
Content of drug
98.9%
Test substance storage
At room temperature protected from light, very tight packaging
Stability under storage conditions
Stable
Expiry date
30 September 2009 (Retest date)
pH (1% in water, indicative range)
7.1 – 6.8 (determined at NOTOX)
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- water
- Controls:
- no
- Amount / concentration applied:
- 0.5 gram
- Duration of treatment / exposure:
- 4 hours
- Observation period:
- 1, 24, 48 and 72 hours after exposure.
- Number of animals:
- 3
- Details on study design:
- Three rabbits were exposed to 0.5 grams of AHU377, moistened with water by application onto clipped skin for four hours using a semi-occlusive dressing. Skin reactions were assessed 1, 24, 48 and 72 hours after exposure.The skin reactions were assessed approximately 1, 24, 48 and 72 hours after the removal of the dressing and test substance. The irritation scores and a description of all other (local) effects were recorded. Adjacent areas of untreated skin of each animal serve as controls.
The irritation was assessed according to the following numerical scoring system. At each observation, the highest scores given were recorded.
Mortality was checked twice daily. Toxicity was checked at least once daily. Body weight was checked day of treatment (prior to instillation) and at termination.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- overall irritation score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- overall irritation score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- overall irritation score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: OECD GHS
- Conclusions:
- Based on these results AHU377does not have to be classified and has no obligatory labelling requirement for skin irritation according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) of the United Nations (New York and Geneva, 2003) and EC criteria for classification and labelling requirements for dangerous substances and preparations (Council Directive 67/548/EEC).
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