| Title:  Naphthoresorcinol CAS Registry Number:  132-86-5 CAS Name:  1,3-Naphthalenediol Additional Names:  1,3-dihydroxynaphthalene Molecular Formula:  C10H8O2 Molecular Weight:  160.17 Percent Composition:  C 74.99%, H 5.03%, O 19.98% Literature 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). Properties:  Leaflets, mp 124-125°.  Freely sol in water, alcohol, ether. Melting point:  mp 124-125° Use:  Reagent for sugars, oils, and for glucuronic acid in urine:  Forsyth, Nature 161, 239 (1948); Heyns, Kelch, Z. Anal. Chem. 139, 339 (1953).  |