Acid Orange 7

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Catalog Number
ACM633965
Product Name
Acid Orange 7
Structure
Structure
CAS
633-96-5
Category
Acid Dyes
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
Appearance
Powder
Hazard Codes
Xi
HS Code
3204120000
LogP
4.94570
PSA
11.53
Stability
Stable under normal temperatures and pressures.
Storage Conditions
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
WGK Germany
3
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