Registration Dossier
Registration Dossier
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EC number: 202-608-3 | CAS number: 97-78-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 82% (ThCO2) in 28 days (ISO 14593) (read-across)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
No studies investigating the biodegradation of N-lauroylsarcosine (CAS 97-78-9) are available. Therefore, biodegradation data from the corresponding salt, Sodium N-lauroylsarcosinate (CAS 137-16-6), are used as read across.This read across approach is in accordance with Regulation (EC) No 1907/2006, Annex XI, Section 1.5. Grouping of substances and the read across approach is explained within the category justification in IUCLID section 13. Since dissociation of the sodium salt under environmental conditions yields the same ionic species as dissociation of the acidic form of the substance, this read across can be considered as justified. Ready biodegradation of the read-across substance Sodium N-lauroylsarcosinate (CAS 137-16-6) was investigated in one study according to ISO 14593 and GLP (Mead, 2004). Activated domestic sludge was used as inoculum and CO2 evolution was the parameter followed for biodegradation estimation. The substance attained 82% degradation after 28 days and fulfilled the 10-day window. Based on the results obtained for the read-across substance, N-lauroylsarcosine (CAS 97-78-9) can be classified as readily biodegradable according to the strict OECD criteria.
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