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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

48h EC50 (Daphnia magna, mobility) = 4.7 mg/L (OECD 202)

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:

Additional information

Since no reliable short-term test involving aquatic invertebrates is available for C12 -13AS Na (CAS 1231880 -35 -5) in accordance to Regulation (EC) 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 on the carbon chain length and the influence of the counter ion can be neglected.

The key, GLP study is available for C12-14AS Na (CAS 85586-07-8) according to EG Guideline 92/69/EWG. In this study Daphnia magna was exposed in a static system to five concentrations up to 10 mg/L (nominal concentration corresponding to 9.5 mg/L of measured concentration) of C12-14AS Na of 29.8% purity (in water). The 48-hour EC50 value of 4.7 mg a.i./L (nominal concentration) could be determined. Due to structural and property similarity with the tested category member, the 48-hour EC50 value of 4.7 mg/L is considered as a reliable for C12 -13AS Na (CAS 1231880 -35 -5).