452. 3-Amino-2-naphthoic Acid

Nomenclature

CAS number: 5959-52-4
3-Amino-2-naphthalenecarboxylic acid; 3-aminoisonaphthoic acid.
C11H9NO2; mol wt 187.19.
C 70.58%, H 4.85%, N 7.48%, O 17.09%.

Description and references

Prepd from 3-hydroxy-2-naphthoic acid: C. F. H. Allen, A. Bell, Org. Synth. coll. vol. III, 78 (1955).

Chemical structure

Properties

Yellow scales from dil alcohol, mp 214°. Sol in alcohol, ether. Solns are yellow with greenish fluorescence.

Derivative

Sodium salt.
C11H8NNaO2; mol wt 209.18.
C 63.16%, H 3.85%, N 6.70%, Na 10.99%, O 15.30%.

Properties

Leaflets, very sparingly sol in water, alcohol.

Derivative

Ethyl ester.
C13H13NO2; mol wt 215.25.
C 72.54%, H 6.09%, N 6.51%, O 14.87%.

Properties

Yellow needles from dil alcohol. Sol in the usual organic solvents, mp 115-115.5°.

Use

In the determination of copper, nickel, cobalt.