We deals in paclitaxel. appearance:white crystalline powder, scentless. Cas:33069-62-4 assay:99% test of method:hplc melting point:213-216 molecular formula:c23h23n3o5 molecular weight:986.02 function: paclitaxel is now used to treat patients with lung, ovarian, breast cancer, head and neck cancer, and advanced forms of kaposi's sarcoma. Paclitaxel is also used for the prevention of restenosis.paclitaxel stabilizes microtubules and as a result, interferes with the normal breakdown of microtubules during cell division. Together with docetaxel, it forms the drug category of the taxanes. It was the subject of a notable total synthesis by robert a. Holton.as well as offering substantial improvement in patient care, paclitaxel has been a relatively controversial drug. There was originally concern because of the environmental impact of its original sourcing, no longer used, from the pacific yew. In addition, the assignment of rights, and even the name itself, to bristol-myers squibb were the subject of public debate and congressional hearings. package0.5kgbag