Basic information
CAS NO
12225-25-1;17095-24-8
EINECS
241-164-5
Molecular Formula
C26H21N5Na4O19S6
Molecular Weight
991.8161
English Name
Reactive Black 5
Synonyms
Black KN-B, tetrasodium (3E)-5-amino-4-oxo-6-[(E)-(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]-3-[2-(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)hydrazinylidene]-3,4-dihydronaphthalene-2,7-disulfonate, tetrasodium 4-amino-5-hydroxy-3,6-bis[(E)-(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-2,7-disulfonate, C.I.Reactive Black 5, Reactive Black KN-B, C.I. 20505, C.I. Reactive Black 5, Remazol black B, 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3,6-bis[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt, tetrasodium 4-amino-5-hydroxy-3,6-bis[[4-(2-sulfonatooxyethylsulfonyl)phenyl]azo]naphthalene-2,7-disulfonate
Physical and Chemical Properties
Melting point
300℃
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