Registration Dossier
Registration Dossier
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Coupling reaction products of diazotized 2-amino-6-[(2-substitued ethyl)sulfonyl]naphthalene-1-substituted acid with 4-({4-chloro-6-[ethyl(3-{[2-(substituted oxy)ethyl]sulfonyl}phenyl)amino]-heteromonocycl-2-yl}amino)-5-hydroxynaphthalene-2,7-disubstituted acid and their sodium and potassium salts
EC number: - | CAS number: -
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The substance is hydrolytically stable at pH 7, relatively stable at pH 4 and tends to be hydrolytically unstable in basic environments tested at pH 9.
Key value for chemical safety assessment
Additional information
The hydrolysis properties of the test item FAT 40850/A TE were tested in a valid GLP study in accordance with EU Method C.7. The substance was found to be hydrolytically stable at pH 7 with a predicted half-life >1 year at 25 °C. At pH 4.0, the test item was relatively stable with a half-life time of 109 days at 25°C. The half-life time at pH 9.0 and 25 °C was determined to be 18 days.
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