Appearance: white crystalline powder
Specific rotation[a]D20: +14.4°～+15.5°
Chloride(Cl): 0.02% max
Ammonium(NH4): 0.02% max
Sulfate(SO4): 0.02% max
Iron(Fe): 10ppm max
Heavy metals(Pb): 10ppm max
Lead: 10ppm max
Arsenic(As): 1ppm max
Other amino acids: Conforms
Loss on drying: 0.20% max
Residue on ignition: 0.10% max
Storage: 2 years in seal and shading place
L-Serine; H-Ser-OH 56-45-1 is D-amino acid synthesis reagent. Serine is important in metabolism in that it participates in the biosynthesis of purines and pyrimidines. It is the precursor to several amino acids including glycine and cysteine, and tryptophan in bacteria.
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