Every year, pharmaceutical companies in the world purchase a large number of impurities, standards and reference substances from ChemWhat to support the research and development, improvement and declaration on new drugs. And ChemWhat has won the high trust of countless pharmaceutical companies and has become their reliable, long-term and important strategic partner.
Before 2021, more than 95% of ChemWhat’s impurities and standards are sourced from Europe and United States. However, due to changes in the international supply chain, ChemWhat is gradually expanding its procurement shares in Asia, especially in China and India.
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![[Immediate Order]We need the following material: sitagliptin-impurity-64 CAS 486460-32-664](https://www.chemwhat.org/wp-content/uploads/1688953071085.png)
