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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

96h LC50 (Oncorhynchus mykiss) =  3.6 mg/L (nominal concentration, OECD 203) 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:

Additional information

Since no reliable chronic fish test is available for C12-13AS Na (CAS 1231880-35-5), in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5, a read-across to another structurally related category members was conducted. Read-across data from C12-14AS Na (CAS 85586-07-8) was used. Toxicity of alkyl sulfates is dependent of the carbon chain length and the influence of the counter ion can be neglected.

In the GLP-study of Wetton 1996 conducted according to the OECD-guideline 203 with rainbow trout, a LC50-value of 3.6 mg/L is reported. Due to structural and property similarity with the tested category member, this value is considered as a reliable LC50 value for C12-13AS Na (CAS 1231880-35-5).