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EC number: 226-109-5 | CAS number: 5281-04-9
The pH determination of test item Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No. 5281-04-9 ) was done as per the test guideline OECD 122. The mean pH of the test dispersionwas determined with the help of digital pH meter. The mean pH was determine to be 7.10 at 24°C.
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