4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid
[CAS# 32266-60-7]

Identification

• Classification: Organic raw materials >> Aryl compounds >> Naphthalenes
• Name: 4-Hydroxy-5-((2-hydroxybenzylidene)amino)naphthalene-2,7-disulfonic acid
• Molecular Formula: C₁₇H₁₃NO₈S₂
• Molecular Weight: 423.42
• CAS Registry Number: 32266-60-7
• EC Number: 250-975-3
• SMILES: C1=CC=C(C(=C1)C=NC2=C3C(=CC(=C2)S(=O)(=O)O)C=C(C=C3O)S(=O)(=O)O)O

Properties

• Solubility: 322.3 mg/L (25 ºC water)
• Density: 1.7±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.706, Calc.^*
• Melting point: 309.75 ºC

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H3150-H3190-H335
• Precautionary Statements: P261-P264-P264+P265-P271-P280-P302+P352-P304+P340-P305+P351+P338-P319-P321-P332+P317-P337+P317-P362+P364-P403+P233-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319