Acid Orange 7

Catalog	BBC633965
CAS	633-96-5
Structure
Description	Acid orange 7, also known as 2-naphthol orange and Orange II, is a dye.Produced by coupling reaction between 2-Naphthol, or β-naphthol and diazonium compound of sulfanilic acid.
Synonyms	Benzenesulfonicacid,4-[(2-hydroxy-1-naphthalenyl)azo]-,monosodiumsalt
IUPAC Name	Sodium;4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate
Molecular Weight	350.35
Molecular Formula	C16H11N2NaO4S
Canonical SMILES	C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC=C(C=C3)S(=O)(=O)[O-])O.[Na+]
InChI	InChI=1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-13(9-7-12)23(20,21)22;/h1-10,19H,(H,20,21,22);/q;+1/p-1
InChI Key	CQPFMGBJSMSXLP-UHFFFAOYSA-M
Melting Point	164 °C
Purity	98%
Appearance	Powder
Solubility in Water	116 g/L (30 ºC)