Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Remarks:
- This study is included in a NONS registration and therefore has been evaluated by a relevant competent authority and is considered to be reliable.
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Year:
- 2 005
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Annex V
- GLP compliance:
- yes
Test material
- Reference substance name:
- 3,3'-dicyclohexyl-1,1'-methylenebis(4,1-phenylene)diurea
- EC Number:
- 406-370-3
- EC Name:
- 3,3'-dicyclohexyl-1,1'-methylenebis(4,1-phenylene)diurea
- Cas Number:
- 58890-25-8
- Molecular formula:
- C27H36N4O2
- IUPAC Name:
- 3,3'-dicyclohexyl-1,1'-methylenebis(4,1-phenylene)diurea
- Test material form:
- solid: particulate/powder
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- other: Japanese White
Test system
- Type of coverage:
- occlusive
- Preparation of test site:
- not specified
- Vehicle:
- other: Liquid paraffin
- Controls:
- not specified
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 500 mg
VEHICLE
- Other: Liquid paraffin - Duration of treatment / exposure:
- 4 hours
- Observation period:
- Not reported
- Number of animals:
- 6
- Details on study design:
- Conducted according to guideline and GLP
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- erythema score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- erythema score
- Basis:
- animal #5
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- erythema score
- Basis:
- animal #6
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #5
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritation parameter:
- edema score
- Basis:
- animal #6
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Reversibility:
- not specified
- Remarks on result:
- other: Timepoint not specified, standard timepoint assumed
- Irritant / corrosive response data:
- None reported
- Other effects:
- None
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Edema and erythema scores were 0 for all animals. Therefore, the test item is not classified for skin irritation.
- Executive summary:
The skin irritancy potential of the test item was assessed using 500 mg of the test item. The study was conducted according to a standard guideline using Japanese white rabbits. The mean and max edema and erythema scores were 0 for all animals. No other effects were observed. Therefore, the test item is not classified for skin irritation.
The study is a GLP compliant, guideline study and is acceptable with restrictions for evaluation of this endpoint.
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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