Aozeal Certified Standards(AOCS), Inc. is one high-tech bio-pharmaceutical company founded in the United States specializing in synthesizing and manufacturing of Pharmaceutical reference standards, Fine chemicals, Specialty Chemicals. Up to now, AOCS diversified product lines cover a wide range of fields, which provide supreme-quality products to more than 50 countries across the world. In addition AOCS establish long-term in-depth co-operations with many worldwide pharma, bio-tech corporations, clinical and biological analysis CROs, as well as universities, hospitals and other research institutions. Currently AOCS offer list in excess of 10,000 products with an extensive inventory for immediate shipment. We are hunger to provide our customer with customize synthesis products which is not available in our catalogue to enrich our product lines. All impurity standards are ok with customer desired purity and characterization from milligram, gram to kilogram. AOCS are equipped with state of the art chemical synthesis equipments to assure quality controll. Every compound we synthesized is accompanied with a complete COA and supported by comprehensive analytical data，meanwhile whole traceability data is recorded for client reference. AOCS's mission is attach great importance to the stability and uniformity of all products and assure an uncompromising level of quality is offered for each reference standard provided. AOCS is striving to become world's leading manufacturer of pharmaceutical impurity standards and preferred business partner for reference standards and R & D services in global pharmaceutical industry .