Plant source: Camptotheca acuminata Decne
CAS NO.:7689-03-4 
Molecular Formula: C20H16N2O4
Molecular Weight: 348.34
Appearance: Light Yellow crystalline powder
Specification: 90%、95%、98%、99%(HPLC)
Used for malignant tumor, psoriasis, wart, acute or chronic leukemia and liver splenomegaly caused by schistosomiasis, has good curative effect on gastric cancer, liver cancer, bladder cancer.
Description About Camptothecin CAS 7689-03-4 
Camptothecin is a cytotoxic quinoline alkaloid which inhibits the DNA enzyme topoisomerase I (topo I). It was discovered in 1966 by M. E. Wall and M. C. Wani in systematic screening of natural products for anticancer drugs.
Camptothecin on gastrointestinal and head and neck cancer has good curative effect, but for a few patients have traces of side effects. 10 - HCPT antitumor activity than camptothecin, also has the obvious curative effect for liver cancer and head and neck cancer, and less side effects.

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