6396. Naphthoresorcinol

Nomenclature

CAS number: 132-86-5
1,3-Naphthalenediol; 1,3-dihydroxynaphthalene.
C10H8O2; mol wt 160.17.
C 74.99%, H 5.03%, O 19.98%.

Description and references

Prepn by cyclization of ethyl phenylacetoacetate: Soliman, West, J. Chem. Soc. 1944, 53; by heating 1-amino-3-hydroxy-4-naphthalenesulfonic acid in acidic soln: Meyer, Bloch, Org. Synth. 25, 73 (1945); from 1,3-naphtholsulfonic acid: Kozlov, Odintsov, J. Appl. Chem. USSR 17, 219 (1944); Kozlov et al., Zh. Prikl. Khim. 35, 880 (1962).

Chemical structure

Properties

Leaflets, mp 124-125°. Freely sol in water, alcohol, ether.

Use

Reagent for sugars, oils, and for glucuronic acid in urine: Forsyth, Nature 161, 239 (1948); Heyns, Kelch, Z. Anal. Chem. 139, 339 (1953).