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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

acute toxicity: dermal
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Justification for type of information:
The justification document on the read across category approach is included in IUCLID 13.

Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Benzenesulfonic acid, methyl-, C20-24 (even numbered) sec-alkyl derivs.
EC Number:
Molecular formula:
C8H11(CH2)nSO3 n=19-23
Benzenesulfonic acid, methyl-, C20-24 (even numbered) sec-alkyl derivs.
Test material form:
liquid: viscous
Details on test material:
Appearance: viscous opaque suspension

Results and discussion

Effect levels
Key result
Dose descriptor:
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: undiluted

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Based on two reliable studies with category substances LAB and LABS Na, the test substance is assumed to have a dermal LD50 value > 2000 mg/kg. Therefore the substance is considered not to be classified according to the CLP Regulation.