4 Hydroxy Azithromycin

We are the leading manufacturer, suppliers and exports of API impurities and metabolites in the form of certified reference standards (CRS). We develop high purity with cost-effective products which surely meets requirements of customer. We synthesized more than 1000 products in our stock. We provide COA, analytical supportive documents such as MASS, NMR and HPLC. We are providing quality service, with focus on reducing time and cost, we understand the customer requirement and working close with them to match their timeline.

REFSYN BIOSCIENCES is a Contract Research Organization (CRO), Our team experts are specialized in synthesis of DRUG METABOLITES as reference standards. Drug metabolites are the final or intermediate compound of drugs and could formed only in human or animals. These high pure human and animal drug metabolites are essential as reference standards for the pharmacologic/toxicological characterization in early stage drug discovery organizations and pre-clinical research studies and Bio- Analytical Studies. We develop this difficult drug metabolites in easier way with cost-effective manner. We easily develop Cytochrome P450 based drug metabolites which could be used for the LC-MS analysis.