12225-25-1;17095-24-8 Reactive Black 5

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Basic

CAS No. 12225-25-1;17095-24-8
Product 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
Molecular Formula C26H21N5Na4O19S6
Molecular Weight 991.8161

Physical property

Melting point 300℃