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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

Key value for chemical safety assessment

Skin sensitisation

Link to relevant study records
Reference
Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Data originally submitted as part of the 67/548/EEC notification package.
Qualifier:
according to guideline
Guideline:
other: 96/54/EG, B.6 (Meerschweinchen-Maximierungstest (GPMT))
Deviations:
no
GLP compliance:
yes
Type of study:
guinea pig maximisation test
Species:
guinea pig
Strain:
other: GOHI (SPF)
Sex:
not specified
Route:
intradermal
Vehicle:
corn oil
Concentration / amount:
Concentration of test material and vehicle used at induction: a) Intradermal induction: 5 % in corn oil b) Epidermal induction: 75 % in corn oil Concentration of test material and vehicle used for each challenge: 75 % in corn oil
Route:
epicutaneous, semiocclusive
Vehicle:
corn oil
Concentration / amount:
Concentration of test material and vehicle used at induction: a) Intradermal induction: 5 % in corn oil b) Epidermal induction: 75 % in corn oil Concentration of test material and vehicle used for each challenge: 75 % in corn oil
No. of animals per dose:
Number of animals in test group: 10
Number of animals in negative control group: 5
Positive control substance(s):
not specified
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
75 %
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 75 %. No with. + reactions: 0.0. Total no. in groups: 10.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
test chemical
Dose level:
75 %
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: test group. Dose level: 75 %. No with. + reactions: 0.0. Total no. in groups: 10.0.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
75 %
No. with + reactions:
0
Total no. in group:
5
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 75 %. No with. + reactions: 0.0. Total no. in groups: 5.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
negative control
Dose level:
75 %
No. with + reactions:
0
Total no. in group:
5
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 75 %. No with. + reactions: 0.0. Total no. in groups: 5.0.

Maximum concentration not causing irritating effects in preliminary test: 75 % Signs of irritation during induction: Intradermal induction: Erythema, oedema, necrotizing dermatitis, encrustation and exfoliation of encrustation. Epidermal induction: Discrete/patchy erythema was observed in all animals at the 24- and 48- hour reading after treatment with the test item. 

Other observations: One animals of the test group was found dead on test day 10. At necropsy, no macroscopic findings were noted. The death was considered to be spontaneous and treatment unrelated.

Interpretation of results:
not sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Maximum concentration not causing irritating effects in preliminary test: 75 % Signs of irritation during induction: Intradermal induction: Erythema, oedema, necrotizing dermatitis, encrustation and exfoliation of encrustation. Epidermal induction: Discrete/patchy erythema was observed in all animals at the 24- and 48- hour reading after treatment with the test item.
Other observations: One animals of the test group was found dead on test day 10. At necropsy, no macroscopic findings were noted. The death was considered to be spontaneous and treatment unrelated.
Executive summary:

Maximum concentration not causing irritating effects in preliminary test: 75 % Signs of irritation during induction: Intradermal induction: Erythema, oedema, necrotizing dermatitis, encrustation and exfoliation of encrustation. Epidermal induction: Discrete/patchy erythema was observed in all animals at the 24- and 48- hour reading after treatment with the test item. 

Other observations: One animals of the test group was found dead on test day 10. At necropsy, no macroscopic findings were noted. The death was considered to be spontaneous and treatment unrelated.

The substance is not classified.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not sensitising)
Additional information:

Maximum concentration not causing irritating effects in preliminary test: 75 % Signs of irritation during induction: Intradermal induction: Erythema, oedema, necrotizing dermatitis, encrustation and exfoliation of encrustation. Epidermal induction: Discrete/patchy erythema was observed in all animals at the 24- and 48- hour reading after treatment with the test item. 

Other observations: One animals of the test group was found dead on test day 10. At necropsy, no macroscopic findings were noted. The death was considered to be spontaneous and treatment unrelated.

The substance is not classified.


Migrated from Short description of key information:
No sensitising effects noted.

Justification for selection of skin sensitisation endpoint:
GLP study

Respiratory sensitisation

Endpoint conclusion
Endpoint conclusion:
no study available

Justification for classification or non-classification