Direct Blue 14
[CAS# 72-57-1]

Identification

• Classification: Organic raw materials >> Amino compound >> Sulfonic acid amino compound
• Name: Direct Blue 14
• Synonyms: C.I. 23850; Trypan Blue; Niagara Blue 3B; Tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate]
• Molecular Formula: C₃₄H₂₄N₆Na₄O₁₄S₄
• Molecular Weight: 960.79
• CAS Registry Number: 72-57-1
• EC Number: 200-786-7

Properties

• Melting point: 280 °C
• Water solubility: 10 g/L (25 °C)

Safety Data

• Hazard Symbols: T
• Risk Statements: R45
• Safety Statements: S45;S53

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Carcinogenicity	Carc.	1B	H350
Carcinogenicity	Carc.	1A	H350
Reproductive toxicity	Repr.	2	H361
Reproductive toxicity	Repr.	1B	H360
Germ cell mutagenicity	Muta.	1B	H340
Carcinogenicity	Carc.	2	H351
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Flammable liquids	Flam. Liq.	3	H226
Skin irritation	Skin Irrit.	2	H315