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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Skin sensitisation

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (LLNA)
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1992
Reference Type:
secondary source
Title:
SIDS Category of Alkyl sulfates, Alkane sulfonates and Alpha-olefin sulfonates
Author:
OECD
Year:
2007
Bibliographic source:
UNEP Publications

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Deviations:
yes
Remarks:
Only limited data on test item and methodology available
Principles of method if other than guideline:
Method: other
GLP compliance:
yes
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium octyl sulphate
EC Number:
205-535-5
EC Name:
Sodium octyl sulphate
Cas Number:
142-31-4
Molecular formula:
C8H18O4S.Na
IUPAC Name:
sodium octyl sulfate

In vivo test system

Test animals

Species:
mouse
Strain:
CBA
Sex:
female

Study design: in vivo (LLNA)

Vehicle:
other: water
Concentration:
12.5 µl of a 10, 50 or 100% solution
No. of animals per dose:
5

Results and discussion

In vivo (LLNA)

Results
Parameter:
SI
Remarks on result:
other: 1.25, 2.7 or 3.1

Any other information on results incl. tables

The treatment had no significant effect on thymidine incorporation by 

auricular lymph node cells when compared with naive and carrier controls:

stimulation index: 1.25, 2.7 or 3.1
naive control: 2.4
carrier control: 1

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU