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| L-tryptophan |
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| L-tryptophan |
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L-tryptophan
Molecular formula: C11H12N2O2
Molecular Weight: 204.23
CAS :73-22-3
Appearance: white crystal or crystalline powder, slight odor, taste bitter.
Content: 98.5% to 101.5%
Melting point: 289 ¡Æ C, slightly soluble in water, insoluble in ethanol.
Specific Rotation: -29.4 ¡Æ ~ -32.8 ¡Æ
Chloride: ¡Â 0.05%
Sulfate (SO4): ¡Â 0.03%
Iron salts (Fe): ¡Â 0.003%
Heavy metals (Pb): ¡Â 15ppm
Arsenic: ¡Â 1.5 ppm
Loss on drying: ¡Â 0.3%
Residue on ignition: ¡Â 0.1%
PH: 5.5 ~ 7.0
Storage and transportation (Storeage): store in a cool dry place
Use: L-tryptophan is the human body can not synthesize essential amino acids. The food industry is mainly used for food and nutrition supplements. USP grade L-threonine used in the preparation of compound amino acid transfusion and amino acid preparations
Packaging: 25 kg / cardboard drum
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L-tryptophan
Molecular formula: C11H12N2O2
Molecular Weight: 204.23
CAS :73-22-3
Appearance: white crystal or crystalline powder, slight odor, taste bitter.
Content: 98.5% to 101.5%
Melting point: 289 ¡Æ C, slightly soluble in water, insoluble in ethanol.
Specific Rotation: -29.4 ¡Æ ~ -32.8 ¡Æ
Chloride: ¡Â 0.05%
Sulfate (SO4): ¡Â 0.03%
Iron salts (Fe): ¡Â 0.003%
Heavy metals (Pb): ¡Â 15ppm
Arsenic: ¡Â 1.5 ppm
Loss on drying: ¡Â 0.3%
Residue on ignition: ¡Â 0.1%
PH: 5.5 ~ 7.0
Storage and transportation (Storeage): store in a cool dry place
Use: L-tryptophan is the human body can not synthesize essential amino acids. The food industry is mainly used for food and nutrition supplements. USP grade L-threonine used in the preparation of compound amino acid transfusion and amino acid preparations
Packaging: 25 kg / cardboard drum
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