Registration Dossier
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EC number: 931-974-3 | CAS number: 1231880-35-5
Short-term toxicity to aquatic invertebrates
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:
- 4.7
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).
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