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EC number: 204-424-9
CAS number: 120-78-5
For 2,2'-disulfanediylbis(1,3-benzothiazole) 0 % degradation within 28
days was observed. The test was conducted following the OECD-Guideline
301 C-modified MITI Test. 2,2'-disulfanediylbis(1,3-benzothiazole) is
hence classified as not readily biodegradable (Bayer AG, 1988).
For 2,2'-disulfanediylbis(1,3-benzothiazole) 0 % degradation within 28 days was observed. The test was conducted following the OECD-Guideline 301 C-modified MITI Test. 2,2'-disulfanediylbis(1,3-benzothiazole) is hence classified as not readily biodegradable (Bayer AG, 1988). In the EU-risk assessment for CBS (CAS: 95-33-0), information regarding the biodegradability of the potential metabolites of MBTS, such as MBT, BT, BTon, and MeSBT, is also summarized and discussed. The described metabolites are also not readily biodegradable. Only when the inoculi were adapted under special conditions, certain level of degradation of MBT, BT, BTon, and MeSBT was observed. Such processes are expected in biological treatment plant, but not in the environment.
No respiration inhibition on activated sludge is expected, because the
test concentration (i.e. 100 mg/l) of MBTS is much lower than the
effective concentrations, such as an 3h-EC50 >10000 mg/l for MBTS.
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