D-Tryptophan

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D-Tryptophan
Posting date : May 08, 2013
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30-
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D-Tryptophan Molecular formula: C11H12N2O2 Molecular weight:204.23 CAS No.:153-94-6 【Description】White or yellowish crystal powder, taste slightly sweet. 【Specification】Item Limit Appearance: White or yellow crystalline powder Assay 99.0%~101.0% Specific Rotation [α]D20 +30.5°~ +32.5° Transmittance ≥95.0% PH 5.5~ 6.4 Loss on Drying ≤0.2% Residue on Ignition ≤0.1% Chloride [Cl-]≤0.02% Sulfate [SO42-]≤0.02% Ammonium [NH4+] ≤0.02% Heavy Metals [Pb] ≤10ppm Iron [Fe] ≤10ppm Arsenic [As2O3] ≤1ppm Other Amino Acids Conforms 【Function】D-Tryptophan is important nutrition product, it is be used as prevention of nicotinic acid deficiency in medicine. 【Package】25kg net weight cardboard drum lined with PE bag, or according to the customer`s demand. - Payment : T/T L/C D/P West Union - Delivery : Within 7 days after your payment - Origin : China - Samples : Charge For more information,pls feel free to contact us

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