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Jiangsu Tianbo Chemical Co.,Ltd.
Jiangsu Tianbo Chemical Co.,Ltd.
15 YRS
Jiangsu, China
Main Products:
Naphthol As / 3-Hydroxy-2'-Methyl-2-Naphthanilide / Naphthol As-E / 3-Hydroxy-2-Naphthoyl-Ortho-Phenetidide / 3-Hydroxy-N-(2-Methoxyphenyl)-2-Naphthamide / 3-Hydroxy-3'-Nitro-2-Naphthanilide / N-(4-Chloro-2,5-Dimethoxyphenyl)-3-Hydroxynaphthalene-2-Carboxamide / 3-Hydroxy-N-Naphthalen-1-Ylnaphthalene-2-Carboxamide / N-(4-Ethoxyphenyl)-3-Hydroxynaphthalene-2-Carboxamide / 3-Hydroxy-4'-Methoxy-2-Naphthanilide / 2-Methoxy-4-Nitroaniline / 4-Methoxy-2-Nitroaniline / 2-Methoxy-5-Nitrobenzenediazonium / 2-Methyl-5-Nitroaniline
Jiangsu, China
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Naphthol AS-BS / CAS 135-65-9
OVERVIEW
Packaging
25 KG/Woven Bag
Lead Time
14-30 days
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DESCRIPTION
Naphthol AS-BS
Alias: | -- |
Product name: | NAPHTHOL AS-BS |
CAS RN： | 135-65-9 |
Index No.: | Azoic Coupling Component 17 (37515) |
Molecular formula: | C17H12N2O4 |
Structural formula: |
|
Molecular weight: | 308.32 |
Appearance: | Light ecru powder |
Assay: | ≥99% |
Color light: | Near to standard substance |
Intensity, molecule: | 100±5 of standard substance |
Melting point(dry product): | 242°C |
2.3 acid content: | ≤0.09% |
Unsoluble substance content in basic liquor: | ≤0.15% |
Insoluble residues in HCL : | -- |
Use: | Intermediates of organic pigments |
Typical Properties
Summary
NAPHTHOL AS-BS is mainly used as a red primer for cotton dyeing. It can be combined with red base R to get rose red and red base G to get brilliant peach red with blue light. It can also be mixed with chromophenol as or chromophenol as-ol, and then combined with red base G to get a very bright red. It can also be used to dye vinylon, viscose fiber, silk and to make fast pigment and neutral pigment.
CAS No.
135-65-9
Formula
C17H12N2O4
Molecular Mass
308.28800
Exact Mass
308.08000
PSA
95.15000
Logp
4.30210
IUPAC
3-hydroxy-N-(3-nitrophenyl)naphthalene-2-carboxamide
SMILES
C1=CC=C2C=C(C(=CC2=C1)C(=O)NC3=CC(=CC=C3)[N+](=O)[O-])O
Attribute classification
Matter Classification
organic
Category
Dyestuffs and Pigments > Ingrain Dyes
Chemical and Physical Properties
Melting Point
246-247 °C
Density
1.449 g/cm3
Boiling Point
448 ºC
Flash Point
224.7 ºC
Appearance
Yellow green powder
Export information
HS Code
29242990
Export Rebate
13%
Risk Code
R22
Safety Label
Xn
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