2-Diazo-1-naphthol-4-sulfonate
[CAS# 64173-96-2]

Identification

• Classification: Chemical reagent >> Organic reagent >> Sulfonate / sulfinate
• Name: 2-Diazo-1-naphthol-4-sulfonate
• Synonyms: Diazo-2,1,4-sulfonic acid sodium salt; 1,2-Naphthoquinone-2-diazido-4-sulfonic acid sodium salt; 2,1,4 Diazo Salt; NAS-4
• Molecular Formula: C₁₀H₅N₂NaO₄S
• Molecular Weight: 272.21
• CAS Registry Number: 64173-96-2
• EC Number: 264-719-3

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Skin sensitization	Skin Sens.	1	H317
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Self-reactive substances or mixtures	Self-react.	D	H242
Skin irritation	Skin Irrit.	2	H315

• Hazardous Chemical?: Yes