L-Serine also known as β-hydroxyalanine, is a neutral aliphatic amino acid containing hydroxyl groups [4]. Serine is a neutral aliphatic hydroxy amino acid, a non-essential amino acid, chemical formula C3H7NO3, molecular weight 105.09, melting point 496~501 K, easily soluble in water, almost insoluble in non-polar solvents. Serine can be used as an additive for skin nutrition; serine has hydroxyl groups, so it is one of the amino acids with strong moisturizing ability, and it is often used as a moisturizing agent for skin. It can be made into liposomes with phospholipids, and then combined with other active ingredients for better moisturizing effect; serine can promote hair growth and reduce hair loss.
CAS NO | 56-45-1 |
Formula | C3H7NO3 |
Molecuht Weight | 105.09 |
Appearance | White powder |
EINECS No | 200-274-3 |
Item | Standard |
Appearance | White Power |
Specific Rotation [a]D20o | 15.2º |
Transmittance | >99.0% |
Chloride (Cl) | ≤0.02% |
Sulfate (SO4) | ≤0.02% |
Iron (Fe) | ≤0.001% |
Heavy Metals (Pb) | <10ppm |
Ammonium | <0.02% |
Loss on Drying | ≤0.2% |
Residue in Ignition | ≤0.1% |
Assay | 0.99 |