CAS#:   7689-03-4
Molecular formula:   C20H16N2O4
Molecular weight:   348.36
Test Method:    HPLC
Functions and Uses:

Camptothecin affects the activity of the enzyme topoisomerase I, whose normal action is to cleave, unwind, and religate DNA. When camptothecin binds to topoisomerase I, it will be able to cleave but not to religate DNA. Thereby, camptothecin causes single strand breaks in DNA

Camptothecin is a plant secondary metabolite used as an anti-cancer drug that damages DNA, leading to the destruction of the cell.It comes from Camptotheca acuminata, a deciduous tree found in southern China. A close analogue, 9-methoxycamptothecin, is also present in the same source.

Quality standard:

(1) Specific optical rotation : +3132°
(2)Melting point: 264267
(3)Purity: 90%, 95%, 98%, 99%(HPLC)
(4)Loss on dry:<0.5%

(5)Ash: <1%
(6) Heavy metals : <10ppm
(7)Arsenic salt:<1ppm