Registration Dossier
Registration Dossier
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EC number: 269-284-3 | CAS number: 68214-04-0
Endpoint summary
Administrative data
Description of key information
In a preliminary test at pH 4, 7 and 9 according to OECD 111, No significant signs of hydrolysis were observed at pH 7. A decrease in test item concentration of 9.5 % was observed at pH 9 and a decrease of 53.3 % was observed at pH 4 (Laus 2018).
In a hydrolysis study performed acording to the protocol as described in OECD 111, the substance hydrolysed ca 35% at pH 4 and ca 10% pH 9. The hydrolysis products were identified. It was shown that the core molecule (chromophore) of the substance remains intact and the hydrolysis is related to the chloride on the molecule. The core molecule (chromophore) is therefore concluded to be hydrolytically stable (Kemira 2018)
The hydrolysis products were identified as (Kemira 2018):
2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[[4-[[1,4-dihydro-6-[[8-hydroxy-3,6-disulfo-7-[(2-sulfophenyl)azo]-1-naphthalenyl]amino]-4-oxo-1,3,5-triazin-2-yl]amino]phenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-, hexasodium salt (9CI) and
2,7-Naphthalenedisulfonic acid, 4,4'-[1,4-phenylenebis[amino(1,6-dihydro-6-oxo-1,3,5-triazine-4,2-diyl)imino]]bis[5-hydroxy-6-[(2-sulfophenyl)azo]-, hexasodium salt (9CI)
(Cl groups --> OH groups)
Additional information
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