Pigment Red 181
[CAS# 2379-74-0]

Identification

• Classification: Dyes and pigments >> Dyes >> Reduced dye
• Name: Pigment Red 181
• Synonyms: Vat Red 1; Vat Pink R; 6-Chloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methylbenzo[b]thiophene-3(2H)-one
• Molecular Formula: C₁₈H₁₀Cl₂O₂S₂
• Molecular Weight: 393.31
• CAS Registry Number: 2379-74-0
• EC Number: 219-163-6

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Eye irritation	Eye Irrit.	2	H319
Skin sensitization	Skin Sens.	1	H317
Specific target organ toxicity - single exposure	STOT SE	3	H335