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Hubei Pretty Chemical Technology Co.,Ltd.
Hubei Pretty Chemical Technology Co.,Ltd.
6 YRS
Hubei, China
Main Products:
Phenothiazine / Diphenylamine / 4,4’-bis(α,α’-Dimethylbenzyl)Diphenylamine / Antioxidant BLE / Naphthol As / Naphthol AS-D / Naphthol AS-LC / 3-Hydroxy-2-Naphthoyl-Ortho-Phenetidide
Hubei, China
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Chromophenol AS / CAS 92-77-3
OVERVIEW
Packaging
25 KG/Paper Bag
Lead Time
14-30 days
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DESCRIPTION
Chromophenol AS
English Name：Naphthol AS
Index number：Azoic Coupling Component 2(37505)
Molecular formula：C26H29NO3
Structural formula：
Molecular weight：263
Appearance：beige powder
Content：≥98%
Color light：similar to the standard
Strength, score：Standard100±3
Melting point of dry product：246℃
2.3 acid content：≤0.1%
Content of insoluble impurities in lye：≤0.15%
Usage: the most commonly used primer, widely used in cotton fabric dyeing and printing.
Typical Properties
Summary
This product is mainly used in the production of organic pigments, dyeing and printing of cotton fiber, viscose fiber and some synthetic fibers.
CAS No.
92-77-3
Formula
C17H13NO2
Molecular Mass
263.29
Exact Mass
263.09500
PSA
49.33000
Logp
3.87070
IUPAC
3-hydroxy-N-phenylnaphthalene-2-carboxamide
SMILES
C1=CC=C(C=C1)NC(=O)C2=CC3=CC=CC=C3C=C2O
Attribute classification
Matter Classification
organic
Category
Dyestuffs and Pigments > Ingrain Dyes
Chemical and Physical Properties
Melting Point
246-248 °C
Density
1.1138
Boiling Point
406.53°C
Flash Point
190.7 °C
Appearance
Light yellow crystal.
Export information
HS Code
29242990
Export Rebate
13%
Export Formalities
S
UN No.
3077
DG-Class
9
Risk Code
R43-51/53
Safety Label
Xi,N
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