首页>
外国专利>
METHOD FOR MANUFACTURING METHYL 5-AMINOLEVULINATE HYDROCHLORIDE, A COSMETIC COMPOSITION FOR SKIN EXTERNAL APPLICATION FOR IMPROVEMENT OF PIMPLED SKIN, AND A MANUFACTURING METHOD THEREOF
METHOD FOR MANUFACTURING METHYL 5-AMINOLEVULINATE HYDROCHLORIDE, A COSMETIC COMPOSITION FOR SKIN EXTERNAL APPLICATION FOR IMPROVEMENT OF PIMPLED SKIN, AND A MANUFACTURING METHOD THEREOF
展开▼
机译:5-氨基戊酸氢甲酯的制造方法,用于皮肤外用的改善皮肤色素的化妆品组合物及其制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: A method for manufacturing methyl 5-aminolevulinate hydrochloride is provided to shorten a synthesis time and to improve yield by reacting methanol and thionylchloride with 5-aminolevulinate hydrochloride, adding diethyl-ether and then vacuum-drying the mixture.;CONSTITUTION: A method for manufacturing methyl 5-aminolevulinate hydrochloride represented by chemical formula 1 comprises the steps of: reacting methanol and thionylchloride with 5-aminolevulinate hydrochloride; adding diethyl-ether to the reacted material; and vacuum-drying the mixture. A cosmetic composition for skin external application for improvement of pimpled skin comprises methyl 5-aminolevulinate hydrochloride as an active ingredient.;COPYRIGHT KIPO 2011
展开▼