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  • Chemical Name: L-Serine
  • CAS No.:56-45-1
  • MF:C3H7NO3
  • MW:105.09
  • Purity:98% or according to customer requirements
  • Color:White
  • Product Categories: Amino Acids;alpha-Amino Acids;Biochemistry;Nutritional Supplements;L-Amino Acids;Food & Feed ADDITIVES;
  • Test method: HPLC

What is Serine?

Serine is a non-essential amino acid in humans (synthesized by the body), Serine is present and functionally important in many proteins. With an alcohol group, serine is needed for the metabolism of fats, fatty acids, and cell membranes; muscle growth; and a healthy immune system. It also plays a major role in pyrimidine, purine, creatine, and porphyrin biosynthetic pathways. Serine is also found at the active site of the serine protease enzyme class that includes trypsin and chymotrypsin. (NCI04)

L-serine is the L-enantiomer of serine. It has a role as a human metabolite, an algal metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a mouse metabolite. It is a serine family amino acid, a proteinogenic amino acid, a L-alpha-amino acid and a serine. It is a conjugate base of a L-serinium. It is a conjugate acid of a L-serinate. It is an enantiomer of a D-serine. It is a tautomer of a L-serine zwitterion. (Source: ChEBI)

Basic information 
Product Name: L-Serine
Synonyms: (s)-2-amino-3-hydroxypropanoicacid;2-Amion-3-hydroxypropionicacid;alpha-Amino-beta-hydroxypropionic acid; alpha-amino-beta-hydroxypropionicacid; 8-HYDROXY-L-ALANINE; (S)-Serine; Serinum; Serina; Polyserine
CAS: 56-45-1
MW: 105.09
EINECS: 200-274-3
Product Categories: Amino Acids;alpha-Amino Acids;Biochemistry;Nutritional Supplements;L-Amino Acids
Chemical Structure


Chemical Properties   
Melting point  222 °C (dec.) (lit.)
alpha  15.2 º (c=10, 2N HCl)
Boiling point  197.09°C (rough estimate)
density  1.6
refractive index  1.4368 (estimate)
Fp  150°C
storage temp.  2-8°C
solubility  H2O: 50 mg/mL
form  powder
pka 2.19(at 25℃)
color  White
PH 5-6 (100g/l, H2O, 20℃)
optical activity [α]20/D +13.5±0.5°, c = 5% in 5 M HCl
Water Solubility  250 g/L (20 ºC)
λmax λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05
Sublimation  150 ºC
Merck  14,8460
BRN  1721404
Stability: Stable. Incompatible with strong oxidizing agents.
Usage And Synthesis
Chemical Properties Six-sided flaky crystal or prismatic crystal, soluble in water(20℃,25g/100ml water)
Usage Used as a biochemical reagent and food additive, Used for biochemical research, the preparation of tissue culture, and used as amino acids nutrition medicine.

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