camptothecin is orginated from Camptotheca, which has a higher cost than camptothecin derived fromNothapodytes pittosporoides. Maoyuan biochem produces camptothecin from both, both are natual with no pecitisides.
Details of camptothecin:
Standard: In house
Specification: 95%，98%，99% (by HPLC)
Single impurity: less than 0.5% generally, or <0.1% as required
Capacity: 3000kg camptothecin per month
Application: Camptothecin is a cytotoxic quinoline alkaloid which inhibits the DNA enzyme topoisomerase I (topo I) to fight cancers, a pharmaceutical intermediates mainly used for derivatives SN38(Irinotecan related compoud B), Irinotecan( CPT-11)，Topotecan, Exatecan and Lurtotecan in oncology field.Natural camptothecin has steady medical effectivity in its application.