Registration Dossier
Registration Dossier
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EC number: 610-522-6 | CAS number: 503155-49-5
Endpoint summary
Administrative data
Description of key information
Hydrolysis
On the basis of the experimental studies of the read across chemical and applying the weight of evidence approach, test chemical was reported to be hydrolytically stable at pH 4, 7 and 9, respectively and at a temperature of 50⁰C. Considering this result and as per the OECD TG 111 (Annnex 1), half-life of test chemical would be expected to be > 1 year at 25°C. Thus, test chemical was considered to be stable in water.
Additional information
Hydrolysis
Data available of the read across chemicals has been reviewed to determine the hydrolysis half-life value of the test chemical. The studies are as mentioned below:
The half-life of the test chemical was determined. Test chemical does not contain the functional group that hydrolyze in water. For hydrolysis to occur, the only reactivity in water involves desulfonation of the aromatic sulfonic acid or its corresponding sulfonic acid salt. In aqueous acid (sulfuric acid), aromatic sulfonic acids desulfonate at temperatures of 100 to 175 deg C. Although these conditions would not be typically encountered in the environment, it was reported that the test chemical is stable in water.
For the test chemical, the half-life of the test chemical was determined at different pH range. The study was performed according to OECD Guideline 111 (Hydrolysis as a Function of pH) at a temperature of 50°C. Although, half-life value of test chemical is not known, but chemical was reported to be hydrolytically stable at pH 4, 7 and 9, respectively and at a temperature of 50⁰C. Considering this result and as per the OECD TG 111 (Annnex 1), half-life of test chemical would be expected to be > 1 year at 25°C.
On the basis of the experimental studies of the read across chemical and applying the weight of evidence approach, test chemical was reported to be hydrolytically stable at pH 4, 7 and 9, respectively and at a temperature of 50⁰C. Considering this result and as per the OECD TG 111 (Annnex 1), half-life of test chemical would be expected to be > 1 year at 25°C. Thus, test chemical was considered to be stable in water.
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