7-(benzoylamino)-4-hydroxy-3-[[4-[(4-sulphophenyl)azo]phenyl]azo]naphthalene-2-sulphonic acid, sodium salt

Modify Date: 2025-08-25 12:57:05

7-(benzoylamino)-4-hydroxy-3-[[4-[(4-sulphophenyl)azo]phenyl]azo]naphthalene-2-sulphonic acid, sodium salt structure	Common Name	7-(benzoylamino)-4-hydroxy-3-[[4-[(4-sulphophenyl)azo]phenyl]azo]naphthalene-2-sulphonic acid, sodium salt
	CAS Number	83221-50-5	Molecular Weight	652.61000
	Density	N/A	Boiling Point	N/A
	Molecular Formula	C₂₉H₁₉N₅NaO₈S₂-	Melting Point	N/A
	MSDS	N/A	Flash Point	N/A

Name	Direct Red 81
Synonym	More Synonyms

disodium 7-benzamido-4-hydroxy-3-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulfonate

7-benzoylamino-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-2-sulfonic acid , disodium-salt

7-Benzoylamino-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalin-2-sulfonsaeure, Dinatrium-Salz

Chlorantinlichtrot-5BL

C. I. Direct Red 81

2-Naphthalenesulfonicacid,7-(benzoylamino)-4-hydroxy-3-[2-[4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-,sodium salt

Names