 2-naphthol noun see naphthol tooh naf thawl, thol, nap , n. Chem. beta naphthol. See under naphthol ... Useful english dictionary2-naphthol tooh naf thawl, thol, nap , n. Chem. beta naphthol. See under naphthol. ... UniversaliumNaphthol Red Not to be confused with 2 naphthol red. Naphthol Red IUPAC name 4 2 4 carbamoylphenylhydrazono N 2 ethox ... Wikipedia 