简要说明：同晟牌的乙酰-D-亮氨酸19764-30-8产品：估价：1，规格：完善，产品系列编号：齐全

　　 

Items	Standard	Analysis data
Appearance	White to off-white powder	conforms
Specific Rotation [20/D] (C=4 in CH3OH)	+22º to +26º	+24.8º
Melting point	187-190℃	188℃
Heavy Metals (Pb)	Not more than 20 PPM	<20ppm
Arsenic (As2O3)	Not more than 2 PPM	<2ppm
Loss on Drying	Not more than 0.50%	0.16%
Residue on Ignition	Not more than 0.2%	0.09%
Assay	Not less than 98.5%	99.0%