Registration Dossier
Registration Dossier
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4-amino-5-hydroxy-6-(5-{4-chloro-6-[4-(2-sulfonatooxyethanesulfonyl)phenylamino]-1,3,5-triazin-2-ylamino}-2-sulfonatophenylazo)-3-(2-sulfonato-4-(2-sulfonatooxyethanesulfonyl)phenylazo)naphthalene-2,7-disulfonate potassium/sodium;reaction mass of: 4-amino-3-(4-ethenesulfonyl-2-sulfonatophenylazo)-5-hydroxy-6-(5-{4-chloro-6-[4-(2-sulfonatooxyethanesulfonyl)phenylamino]-1,3,5-triazin-2-ylamino}-2-sulfonatophenylazo)naphthalene-2,7-disulfonate potassium/sodium
EC number: 451-440-9 | CAS number: 586372-44-3
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
The hydrolysis behaviour of each peak was followed. The emerging peak was found to be stable at pH 7.0
and 50°C for 94 hours. No further degradation was observed during the preliminary test.
Therefore, no further testing was performed at pH 7.0.
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 94 h
- at the temperature of:
- 50 °C
Additional information
FAT40'815/A was found to be stable at pH 4.0 at 50°C. Its half-life time was estimated to be higher than one year at pH 4.0 under representative environmental conditions (25°C). FAT40'815/A was considered to be hydrolytically stable at pH 4.0 At pH 7.0 a specific degradation behaviour was observed. Two main components could be detected in the HPLC-chromatogram. An increasing peak related to a first test item was observed simultaneously with the decrease of the second test item peak. The emerging peak was found to be stable at pH 7.0 and 50°C for 94 hours. At pH 9.0, FAT 40'815/A is unstable. Its half-life time is shorter than one day at 25°C.
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