6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt

Modify Date: 2025-08-25 10:57:28

6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt structure	Common Name	6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt
	CAS Number	6227-04-9	Molecular Weight	519.507
	Density	N/A	Boiling Point	N/A
	Molecular Formula	C₂₆H₁₈N₅NaO₄S	Melting Point	N/A
	MSDS	N/A	Flash Point	N/A

Name	Direct Black 3
Synonym	More Synonyms

Direct Black 3

2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-3-[(E)-2-[4-[(E)-2-phenyldiazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:1)

Sodium 6-amino-4-hydroxy-3-[(E)-{4-[(E)-phenyldiazenyl]-1-naphthyl}diazenyl]-2-naphthalenesulfonate

Names