3-Hydroxy-2-naphthoic Acid (2,3-Acid) CAS 92-70-6

2,3 Acid Chemical name: 3-Hydroxy-2-naphthoic acid CAS NO: 92-70-6 Molecular formula: C11H8O3 Properties: Light yellow powder, melting point 217-223°C, soluble in ethanol, ether, benzene and soluble in alkaline solution, insoluble in water.. Application:...

Product Details

2,3 Acid

Chemical name: 3-Hydroxy-2-naphthoic acid

CAS NO:  92-70-6

Molecular formula:   C11H8O3

Structure formula: 

 92-70-6.gif

Properties:

Light yellow powder, melting point 217-223°C, soluble in ethanol, ether, benzene and soluble in alkaline solution, insoluble in water..

Application: 

Mainly used to produce Naphthol AS and other Naphthols intermediates, also used to medical and pigment intermediates.

Specification:

Items

Refined Grade

 Common Grade

Purity,%

99 min.

98.5 min.

1,2 Acid,%

0.25 max.

0.5 max.

2-Naphthol,%

0.2 max.

0.5 max.

Moisture,%

0.15 max.

0.3 max.

Ash,%

0.3 max.

0.5 max.

Insolubles in NaOH,%

0.1 max.

0.2

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