Alcohols, C7-9

Endpoint summary

Key value for chemical safety assessment

Skin sensitisation

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed (not sensitising)

Additional information:

The multi-constituent alcohol identified as “Alcohols C7-9 linear and branched” includes the following mixture:

Alcohols C6-12 type C: >80% linear; > 95% C7/8/9 [range C6-C10]; even & odd (CAS 68603-15-6).

 

The key study was performed to GLP according to OECD guideline 406 using the guinea-pig maximisation test method. The test material (Linevol 79) was diluted in propylene glycol and used for induction at 50% intradermal and 50% occlusive epicutaneous; the challenge applications were 5 and 30% occlusive epicutaneous. Erythema or eschar were seen in 19/20 test and 8/10 control animals 48 hours after challenge but this was attributed solely to primary irritation (Rees 1996c).

 

The supporting study was performed prior to the introduction of GLP using a protocol similar to that of OECD guideline 406 using the guinea-pig maximisation test method. Corn oil was used as the vehicle for the test material (Linevol 79) and induction applications were 0.1% intradermal and 100% occlusive epicutaneous; challenge application was 50% occlusive epicutaneous. No skin reactions were seen after challenge (Cassidy & Clark 1978b).

 

The test material was not a skin sensitiser under the conditions of these tests. The absence of sensitisation for other tested alcohols supports the view that these chemicals are not skin sensitisers.

Migrated from Short description of key information:
In two reliable studies, conducted according to (or similar to) OECD guideline 406, Linevol 79 was not a skin sensitiser in the guinea pig maximisation test (Cassidy & Clark 1978b, Rees 1996c).

Respiratory sensitisation

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed (not sensitising)

Additional information:

The test material contains no structural groups suggestive of respiratory sensitisation and, together with the lack of skin sensitising potential, it is unlikely to be a respiratory sensitiser.

Migrated from Short description of key information:
no data

Justification for classification or non-classification

Based on the available data, Alcohols C7-9 linear and branched would not be classified as a skin or respiratory sensitiser under Regulation (EC) No. 1272/2008 (CLP) or Directive 67/548/EEC (DSD). Tests on similar substances included in this category are also supportive of these results, which do not warrant classification for sensitisation under DSD or GHS criteria.