English name:alpha-Methylcinnamic acid Other names: 2-Propenoic acid, 2-methyl-3-phenyl-; Cinnamic acid, α-methyl-; 2-Methyl-3-phenyl-2-propenoic acid CAS No.:1199-77-5 Molecular formula: C10H10O2 Molecular weight:162.188 g/mol Molar mass:162.06808 g/mol Melting point:79-81 centigrade Boiling point:288 centigrade Flash point:382.00 °F Refractive index:1.6000 (estimate) Properties:white crystalline powder, insoluble in water, soluble in organic solvents such as ethanol and benzene. Purity : greater-or-equal99% Packaging :25Kg / bucket Storage method:Keep the storage sealed and stored in a cool, dry place, ensuring good ventilation or exhaust in the workplace Usage :Pharmaceutical intermediates, generally used in organic synthesis. Alpha-methyl cinnamaldehyde is a versatile fragrance commonly used in the fragrance of cosmetics, soaps, foods, etc. The Alpha-methyl streptopropane obtained by the further reaction thereof is used as a synthetic essence and also has a very good aroma. At the same time, α-methylcinnamaldehyde is also an important intermediate for the synthesis of the therapeutic drug epalrestat. As the number of diabetic patients increases, the demand for the drug increases, and the demand for intermediates also increases, and there is an urgent need to improve the process to improve quality.