L-Tryptophan powder CAS NO.73-22-3

【product name】l-tryptophan
【cas no.】73-22-3
【mol. formula】 c11h12n2o2
【mol. wight】 204.22
【standard】 food/medical grade(usp)
【assay】98.5~101.5 %
【appearance】white crystals or crystalline powder
【packing】 25kgs/drum (standard packing)
【storage】 tight container, protect from light

quality standard

packing：by 25 kg/fiber drum, by double plastic bag and aluminum foil bag ,or customized .

shipping methods: we offer several delivery services to suit all customer needs, such as air freight, dhl, fedex, tnt, ems, sea freight and others.

shanghai soyoung biotechnology inc. a faithful and professional supplier and exporter of healthcare raw materials for pharmacy, nutrition and food industries for years with own laboratory and gmp standard factories.

shanghai soyoung has r&d center and testing center, and has international advanced facilities of hplc, gc, aas, uv, tlc, lc-ms and ir equipments.

shanghai soyoung has nearly 20 years production experience, it is producing in gmp workshop, each batch pass strict testing before shipment. strict quality control is performed in every procedure from material sourcing, processing and testing to packing.

we have the following advantages and service

1.a novel r&d center with advanced ventilation equipments and modern experiment equipments.

2.two large production factories with high capacity and meet the requirements of gmp.

3.two warehouses in shanghai china and colorado usa.

4.supplying the products from our manufacturers;

5.custom synthesis of new products;

6.help sourcing products and suppliers in china;

7.assist the export and related affairs.

8.stable quality,professional production & technology;

9.the most competitive price;

10.steady supply, rapid delivery;

11.perfect service, honest cooperation.