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L-tryptophan ycgc_int@yccreate.com
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| Post Date: | Feb 02,2013 |
| Expiry Date: | Aug 01,2013 |
| Detailed Description: |
L-tryptophan ycgc_int@yccreate.com
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 Tel:18062666860 |
| Company: | Wuhan Yuancheng Gongchuang Technology Co., Ltd. [ China ] |
| Contact: | tina |
| Tel: | 86-027-88310829 |
| Fax: | |
| Email: | ycgc_int@yccreate.com |
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