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Naphthol AS-OL

Naphthol AS-OL Basic information
Product Name:Naphthol AS-OL
Synonyms:2-HYDROXY-3-NAPHTHOIC ACID O-ANISIDIDE;2-HYDROXY-3-NAPHTHOYL-O-ANISIDIDE;1-(2',3'-Hydroxynaphthoylamino)-2-methoxybenzene;2-(3-Hydroxy-2-naphthamido)anisole;2'-Methoxy-2-hydroxy-3-naphthanilide;2-Naphthalenecarboxamide, 3-hydroxy-N-(2-methoxyphenyl)-;2-Naphth-o-anisidide, 3-hydroxy-;3-(2-Methoxyphenylcarbamoyl)-2-naphthol
CAS:135-62-6
MF:C18H15NO3
MW:293.32
EINECS:205-206-6
Product Categories:Substrates;Intermediates of Dyes and Pigments
Mol File:135-62-6.mol
Naphthol AS-OL Structure
Naphthol AS-OL Chemical Properties
Melting point 161-164 °C(lit.)
Boiling point 424.1±30.0 °C(Predicted)
density 1.304±0.06 g/cm3(Predicted)
storage temp. Refrigerator, under inert atmosphere
solubility DMSO (Slightly), Methanol (Slightly)
Colour Index 37530
pka8.74±0.40(Predicted)
form Solid
color Off-White to Pale Beige
CAS DataBase Reference135-62-6(CAS DataBase Reference)
NIST Chemistry Reference3-Hydroxy-2-naphthoyl-ortho-anisidide(135-62-6)
EPA Substance Registry System2-Naphthalenecarboxamide, 3-hydroxy-N-(2-methoxyphenyl)- (135-62-6)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
WGK Germany 2
HS Code 2924.29.3300
MSDS Information
ProviderLanguage
SigmaAldrich English
Naphthol AS-OL Usage And Synthesis
PreparationO-Anisidine and 3-Hydroxy-2-naphthoic acid condensation.
Properties and Applicationsm brown powder, melting point for 167 ~ 168 ℃. Insoluble in water, slightly soluble in sodium carbonate solution, soluble in ethanol. In sodium hydroxide solution for yellow. A little sensitive to the air. This product is mainly used for cotton yarns, cotton, cotton cloth, towel, bath towel, PVA, viscose, silk, polyamide fiber and two vinegar fiber and cotton cloth dyeing of direct printing, the printing and dyeing discharge printing. Can also be used to make quick pigment, fast amine element, element and organic pigment fast sulfonylurea medications. The affinity of cotton low, coupled ability medium.
Naphthol AS-OL Preparation Products And Raw materials
Raw materialsSodium dithionite-->o-Anisidine-->Phosphorus trioxide-->o-Anisidine-->3-Hydroxy-2-naphthoic acid
Preparation Productsp-Cresol-->1-NITRO-2-NAPHTHOL
NAPHTHOLAS-BIBUTYRATE NAPHTHOL AS-OL PHOSPHATE,NAPHTHOL AS-OL PHOSPHATE HISTOCHEMICAL SUBSTRATE N-(2,5-Dimethoxyphenyl)-3-hydroxy-2-naphthamide 4-[[2,5-dichloro-4-[(dimethylamino)sulphonyl]phenyl]azo]-3-hydroxy-N-(2-methoxyphenyl)naphthalene-2-carboxamide Naphthol AS-OL NAPHTHOL AS-BI SULFATE POTASSIUM SALT NAPHTHOL AS-BI BETA-D-GLUCURONIDE N-(2,3-Dihydro-2-oxo-1H-benzimidazol-5-yl)-3-hydroxy-2-naphthalenecarboxamide NAPHTHOL AS-CL PHOSPHATE NAPHTHOL AS-LC ACETATE NAPHTHOL AS-CL ACETATE 3-Hydroxy-2-naphthoyl-ortho-phenetidide NAPHTHOL AS-OL ACETATE Naphtanilide EL N-BENZOYL-DL-PHENYLALANINE BETA-NAPHTHOL AS-BI ESTER 2-(BETA-D-GALACTOSIDOXY)NAPHTHOL AS-LC NAPHTHOL AS-BI PHOSPHATE SODIUM SALT N-ACETYL-B-D-GLUCOSAMINE NAPHTHOL AS-LC
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