简要说明：同晟牌的D-苏氨酸 632-20-2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 crystalline powder	conforms
Specific Rotation [а]D20 （C=6 in H2O）	+27.6 to +29.0 Degree	+27.7º
Transmittance	Not less than 95%	98.0%
Heavy Metals (Pb)	Not more than 10PPM	conforms
Arsenic(As2O3)	Not more than 2PPM	conforms
Loss on Drying	Not more than 0.30%	0.19%
Residue on Ignition (Sulfated)	Not more than 0.20%	0.09%
Assay	Not less than 98.0%	99.0%