USP24 Standard L-Serine CAS No. 56-45-1 Naturally Occurring
Proteinogenic Amino Acids
Amino acids l-serine is one of the naturally occurring
proteinogenic amino acids. Its codons are UCU, UCC, UCA, UCG, AGU
and AGC. Only the L-stereoisomer appears naturally in proteins.
L-serine is not essential to the human diet, since it is
synthesized in the body from other metabolites, including glycine.
Serine was first obtained from silk protein, a particularly rich
source, in 1865. Its name is derived from the Latin for silk,
sericum. Serine's structure was established in 1902. By virtue of
the hydroxyl group, serine is classified as a polar mino acid.
◆ Nutritional Supplement
◆ Heatlh Food or Feed Additives
◆ Active Pharmaceutical Ingredients(APIs)
◆ Raw Material of Fine Chemicals
|Product Name||High purity amino acids l-serine|
|Melting point||222 ºC|
|Water solubility||250 g/L (20 ºC)|
|Appearance||White Crystal Power|
|Specific Rotation [a]D20o||+14.0º to +15.6º|
|Heavy Metals (Pb)||≤0.001%|
|Other Amino Acids||Chromatographically not detectable|
|Loss on Drying||≤0.20%|
|Residue in Ignition||≤0.10%|