Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
skin sensitisation
Adequacy of study:
other information

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Annex V
GLP compliance:
yes

In vivo test system

Test animals

Species:
other: Albino guinea pigs

Study design: in vivo (non-LLNA)

Induction
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradmal induction - 5%w/v in achachis oil

- 5% w/v in a mixture of freund's
complete adjuvant plus arachis oil

Topical induction - 50% w/w in arachis oil

Concentration of test material and vehicle used for each challenge:
50 and 25% in arachis oil.
Challenge
Concentration / amount:
Concentration of test material and vehicle used at induction:
Intradmal induction - 5%w/v in achachis oil

- 5% w/v in a mixture of freund's
complete adjuvant plus arachis oil

Topical induction - 50% w/w in arachis oil

Concentration of test material and vehicle used for each challenge:
50 and 25% in arachis oil.
No. of animals per dose:
Number of animals in test group: 20
Number of animals in negative control group: 10

Results and discussion

Any other information on results incl. tables

Maximum concentration not causing irritating effects in preliminary test: 5 %

Signs of irritation during induction:
Topical induction - 5,10,25 and 50% gave a score of 1
(scattered mild redness) at the one hour reading and 50%
also gave a score of 1 at the 24 hour reading.


50% topical challenge gave a score of 1 at one hour.

Evidence of sensitisation of each challenge concentration:
2/20 animals showed evidence of sensitisation

Applicant's summary and conclusion

Interpretation of results:
other: not classified