Ninhydrin2,2-Dihydroxyindane-1,3-dioneNINHYDRIN1,2,3-Indantrione hydrate苯并环丙三酮 一水合物苯并戊三酮 一水合物2,2-二羟基-1,3-茚二酮Trioxohydrindene monohydrate茚三酮Ninhydrin1,2,3-Indantrione monohydrate2,2-Dihydroxy-1,3-indanedioneNinhydrin, ACS reagent2,2-dihydroxy-1H-indene-1,3(2H)-dione1,2,3-Indantrione茚三酮单水合物, ACS试剂NINHYDRIN, ACS