Acid blue 1
[CAS# 129-17-9]

Identification

• Classification: Dyes and pigments >> Dyes >> Acid dyestuff
• Name: Acid blue 1
• Synonyms: C.I. 42045; Patent Blue VF; Sulfan Blue; Food Blue 3; N-[4-[[4-(Diethylamino)phenyl](2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-ethanaminium inner salt sodium salt
• Molecular Formula: C₂₇H₃₁N₂NaO₆S₂
• Molecular Weight: 566.66
• CAS Registry Number: 129-17-9
• EC Number: 204-934-1

Properties

• Water solubility: 1 g/20 mL (20 °C)

Safety Data

• Safety Statements: S24/25

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin sensitization	Skin Sens.	1	H317
Skin irritation	Skin Irrit.	2	H315
Respiratory sensitization	Resp. Sens.	1	H334
Acute toxicity	Acute Tox.	4	H312
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Germ cell mutagenicity	Muta.	2	H341