L-Serine

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L-Serine
 
A nonessential amino acid in human. It is important in metabolism of purines and pyrimidines, and known as precursor of sphingolipids. It is widely used as an ingredient in infusion and infant formula.

Cas.No 56-45-1
Assay 99.0-101.0%
Specification White crystals or crystalline powder, odorless, slightly sweet taste
Applications Infusion
Packaging 25kg&50kg
Pharmacopeia JP,USP,EP,FCC
STORAGE Controlled room temperature in tight container

 
SPECIFICATION AND PROCEDURE

State of solution
(Transmittance)
Not Less Than 98.0%
pH 5.2~6.2
Specific rotation[α]20D +14.4~+15.5°
Specific rotation[α]25D +14.0~+15.6°
Ammonium (NH4) Not More Than 0.020%
Chloride (Cl) Not More Than 0.020%
Sulfate (SO4) Not More Than 0.020%
Iron (Fe) Not More Than 10 ppm
Heavy metals (Pb)** Not More Than 10 ppm
Arsenic (As2O3) Not More Than 1 ppm
Loss on drying Not More Than 0.20%
Residue on ignition Not More Than 0.10%
Related substances Not More Than 0.2%
Endotoxin* Less Than 6.0 EU/g
Assay (dry basis) 99.0~101.0%

· * The endotoxin-certified grade will be supplied on request.
· ** FCC grade (Lead : Not More Than 5 mg/kg) will be supplied on request.
· This product meets requirements of residual solvents listed in the current JP, USP and EP.
 

L-Serine


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