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L-Histidine
Has a first-class R & D team, rich experience in custom compound synthesis, good at synthesis of organic compounds such as chiral, heterocyclic, benzene rings.Synthesis of reference compounds, intermediates, drug candidates, impurities and metabolites for customers with a range of milligrams to kilograms (including GMP quality).The company has perfect analytical equipment and strict product testing methods to ensure continuous improvement of product quality and continuous optimization of product structure.We have excellent management team and a group of high-quality R & D personnel and experienced technical staff.Everyday our chemists and engineers are working with corporations, universities and forward-thinking organizations to pioneer new technologies and innovative approaches through advanced materials.
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An essential amino acid in human. It is widely used as an ingredient in infusion drug and infant formula.
Cas.No
71-00-1
Assay
99.0-101.0%
Specification
White crystals or crystalline powder, odorless, slightly bitter acid taste
Applications
Infusion, Cell culture media, Biotech, Dietary Supplement
Packaging
25kg&50kg
Pharmacopeia
USP,EP,FCC
STORAGE
Controlled room temperature in tight container
SPECIFICATION AND PROCEDURE
· * The endotoxin-certified grade will be supplied on request.
State of solution
(Transmittance)
Not Less Than 98.0%
pH
7.0~8.5
Specific rotation[α]20D
+12.0~+12.8°
Specific rotation[α]25D
+12.6~+14.0°
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 0.5%
Endotoxin*
Less Than 6.0 EU/g
Assay (dry basis)
99.0~101.0%
· ** 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.