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6837-67-8

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6837-67-8 Structure

6837-67-8 Structure
IdentificationBack Directory
[Name]

4-[Bis[4-hydroxy-3-(sodiooxycarbonyl)-1-naphthalenyl]methylene]-1,4-dihydro-1-oxonaphthalene-2-carboxylic acid sodium salt
[CAS]

6837-67-8
[Synonyms]

C.I.44535
Mordant Blue 28
C.I.Mordant Blue 28
Naphthochrome Azurine B
C.I.Mordant Blue 28:C.I.44535
4-[Bis[4-hydroxy-3-(sodiooxycarbonyl)-1-naphthalenyl]methylene]-1,4-dihydro-1-oxonaphthalene-2-carboxylic acid sodium salt
[MOL File]

6837-67-8.mol
Safety DataBack Directory
[HS Code ]

2918990090
Hazard InformationBack Directory
[Preparation]

Methane, tetrachloro – and 1-Hydroxy-2-naphthoic acidin the presence of copper in naoh aqueous solution reaction
[Properties and Applications]

brilliant blue to red light navy blue. Soluble in water for royal purple. In concentrated sulfuric acid for pure blue, purple precipitation after dilution.
Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 5 4 4 3 5 5 5
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1667-99-8 1562-90-9 3270-25-5 6222-49-7 3564-18-9