Registration Dossier
Registration Dossier
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EC number: 271-808-0 | CAS number: 68608-89-9 This substance is identified by SDA Substance Name: C11-C13 branched alkyl benzene sulfonic acid sodium salt and SDA Reporting Number: 25-097-04.
Endpoint summary
Administrative data
Description of key information
Additional information
Abiotic degradation
The mean percent hydrolysis was -16.66% at pH 5, -25.59% at pH 7, and -18.59% at pH 9 after 5 days, indicating read-across substance CaDDBS is hydrolytically stable. No other stability testing is required for BABS Na salt.
Biotic degradation
Two studies and one read-across study were used for biodegradation assessment. The biodegradation of BABS Na salt was followed for 30 days by analyzing the O2 consumption. The test material degraded only 6% percent in 30 days, indicating the substance is not readily biodegradable.The ready biodegradation study with sulphonic acid branched alkylate (BABS) was determined in an OECD 301F ready biodegradability test. Biodegradation was followed for 28 days, using sodium benzoate as a reference substance. The reference substance was 68% biodegraded and met the 10 -day window requirement. Therefore the test results are valid. The test substance was <5% degraded at the end of 28 days. The test substance is not readily biodegradable.A second study with BABS Na showed that BABS Na salt degraded 97.8% in 196 days and therefore undergoes extensive primary biodegradation.Based on the available biodegradation studies with substance and read-across study with BABS,the substance considered as inherently biodegradable.No other biodegradation testing is required on BABS Na salt.
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