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Naphthol AS-D

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Naphthol AS-D Basic information

Product Name:
Naphthol AS-D
Synonyms:
  • 1-(2',3'-Hydroxynaphthoylamino)-2-methylbenzene
  • 2-Naphtho-o-toluidide, 3-hydroxy-
  • 3-hydroxy-n-(2-methylphenyl)-2-naphthalenecarboxamid
  • Acco Naf-Sol AS-D
  • Acco Naphthol AS-D
  • Acna Naphthol E
  • AcnaNaphtholE
  • Amanil Naphthol AS-D
CAS:
135-61-5
MF:
C18H15NO2
MW:
277.32
EINECS:
205-205-0
Product Categories:
  • Substrates
  • Intermediates of Dyes and Pigments
Mol File:
135-61-5.mol
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Naphthol AS-D Chemical Properties

Melting point:
196-198 °C
Boiling point:
399.7±35.0 °C(Predicted)
Density 
1.277±0.06 g/cm3(Predicted)
Colour Index 
37520
pka
8.73±0.40(Predicted)
NIST Chemistry Reference
2-Naphthalenecarboxamide, 3-hydroxy-n-(2-methylphenyl)-(135-61-5)
EPA Substance Registry System
2-Naphthalenecarboxamide, 3-hydroxy-N-(2-methylphenyl)- (135-61-5)
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Safety Information

Hazard Codes 
N
Risk Statements 
50/53
Safety Statements 
60-61
RIDADR 
UN 3077 9/PG 3
WGK Germany 
2
HazardClass 
9
PackingGroup 
III

MSDS

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Naphthol AS-D Usage And Synthesis

Purification Methods

Purify it by recrystallisation from xylene. This gives yellow-green fluorescent solutions at pH 8.2-9.5. [IR: Schnopper et al. Anal Chem 31 1542 1959.] The naphthol AS-D acetate is obtained with AcCl, m 168-169o, and with chloroacetyl chloride naphthol AS-D-chloroacetate is obtained [Moloney et al. J Histochem Cytochem 8 200 1960, Burstone Arch Pathology 63 164 1957]. [Beilstein 12 H 505.]

Naphthol AS-D Preparation Products And Raw materials

Raw materials

Preparation Products

Naphthol AS-DSupplier

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