4-Methylumbelliferone [ 90-35-5 ]
Purity: 98%, needle body crystallization. Melting point 185 ℃ (194-195 186 ℃) soluble in alcohol, acetic acid, alkali solution and ammonia, slightly soluble in hot water, ether and chloroform. With strong sulfuric acid role to appear blue fluorescence. The goods for cholagogue medicine, is anti-allergic color is acerbity sodium intermediates