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EC number: 258-904-8
CAS number: 53988-10-6
No abiotic degradation of the test item was observed. 1,3-Dihydro-4(or 5)-methyl-2H-benzimidazole-2-thione is found to be stable at 50°C at all three pH-values. Therefore it can be assumed that the test item is also stable at 25 °C and no half-life times and hydrolysis rates were calculated.
The hydrolysis behaviour of 1,3-dihydro-4(or
5)-methyl-2H-benzimidazole-2-thione were performed according to OECD
Guidelines for Testing of Chemicals, Section 1 – Physical-Chemical
Properties, OECD TG 111 (2004), Council Regulation (EC) No 440/2008,
Guideline Part C – Methods for the Determination of Ecotoxicity, C.7.
“Abiotic Degradation: Hydrolysis as a Function of pH” (adopted, May
2008). The tests were investigated at 50 °C at pH 4, pH 7 and pH 9 over
a period of five day. The stability was monitored by HPLC analysis using
UV-detection. No abiotic degradation of the test item was observed.
1,3-Dihydro-4(or 5)-methyl-2H-benzimidazole-2-thione is found to be
stable at 50°C at all three pH-values. Therefore it can be assumed that
the test item is also stable at 25 °C and no half-life times and
hydrolysis rates were calculated.
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