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6-amino-4-hydroxy-3-[(4-nitro-2-sulphophenyl)azo]naphthalene-2-sulphonic acid
CAS:63555-89-5
Formula:C16H12N4O9S2

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2,7-Naphthalenedisulfonic acid,
4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-
CAS:21817-66-3
Formula:C16H12N4O9S2

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2-Naphthalenesulfonic acid,
6-amino-4-hydroxy-3-[(4-nitro-3-sulfophenyl)azo]-
CAS:65624-26-2
Formula:C16H12N4O9S2

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2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[(4-nitrophenyl)azo]-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized 4-nitrobenzenamine and resorci
CAS:90459-01-1
Formula:C16H12N4O9S2

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Benzenesulfonic acid,
3-[[3-(aminosulfonyl)-1-hydroxy-2-naphthalenyl]azo]-5-nitro-
CAS:33683-77-1
Formula:C16H12N4O9S2

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2,7-Naphthalenedisulfonic acid,
5-amino-4-hydroxy-3-[(4-nitrophenyl)azo]-
CAS:53524-14-4
Formula:C16H12N4O9S2

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(3E)-5-amino-3-[2-(4-nitrophenyl)hydrazinylidene]-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
CAS:60904-32-7
Formula:C16H12N4O9S2