Sodium 5-[(4-nitrophenyl)azo]salicylate
[CAS# 1718-34-9]

Identification

• Classification: Biochemical >> Biochemical reagent >> Biological dye
• Name: Sodium 5-[(4-nitrophenyl)azo]salicylate
• Synonyms: Alizarin yellow R sodium salt; 2-Hydroxy-5-((4-nitrophenyl)azo)benzoic acid monosodium salt; 5-(4-Nitrophenylazo)-salicylic acid sodium salt; Mordant Yellow 3R
• Molecular Formula: C₁₃H₉N₃NaO₅
• Molecular Weight: 309.21
• CAS Registry Number: 1718-34-9
• EC Number: 217-002-4

Properties

• Melting point: 253-254 °C
• Water solubility: soluble

Safety Data

• Safety Statements: S24/25

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302