... 4.Raw material for amino acid compound infusion Amino acid powder L-Serine (medical raw material) Product name: L-Serine ... Pharmacopeia 2010 edition) Test ItemSpecificationAssay≥98.5%CharacteristicWhite crystals or crystalline powder,Odorless, slightly sweet tasteSpecific rotation[a]D20°+14.0 ... 12 EU/g Note: specification meets or exceeds the USP32, AJI, EP,FCCIV ,or other standard if you need.Packing ...