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L-tryptophan
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Product Description
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 ° C, slightly soluble in water, insoluble in ethanol.
Specific Rotation: -29.4 ° ~ -32.8 °
Chloride: ≤ 0.05%
Sulfate (SO4): ≤ 0.03%
Iron salts (Fe): ≤ 0.003%
Heavy metals (Pb): ≤ 15ppm
Arsenic: ≤ 1.5 ppm
Loss on drying: ≤ 0.3%
Residue on ignition: ≤ 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
Mail:ycgc_int04 at ycgccreate com
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SUPPLIER PROFILE
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| Company: | Wuhan Yuancheng Gongchuang Technology Co., Ltd. | ||
| City/State | wuhan, hubei | Country: |
China 
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| Business Type: | Export - Manufacturer / Trading Company | Established: | 1988 |
| Member Since: | 2012 | Contact Person | julia |
SUPPLIER PROFILE
City/State/Country -
wuhan, hubei
China
Business Type -
Export - Manufacturer / Trading Company
Established -
1988
Member Since -
2012
Contact Person -
julia