Lenvatinib Impurity 1 with CAS No: 417717-21-6 is an impurity standard of Lenvatinib. Lenvatinib is a medication used in the treatment of certain types of cancer, particularly thyroid cancer and renal cell carcinoma (a type of kidney cancer). Lenvatinib is classified as a tyrosine kinase inhibitor (TKI) and works by inhibiting specific proteins and enzymes involved in the growth and spread of cancer cells. Buy high quality Lenvatinib Impurity 1 from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Lenvatinib Impurity 1