Camptothecin (1H-Pyrano[34:6,7]indolizino[1,2-6]puinoline-3,14(4H,12H-)-dione,4-ethy1-4-hydroxy-(s)-)
	Brief introduction：Campotothecin(CPT) is a kind of alkaloid isolated from Camptotheca acuminata. Camptotheca acuminata is distributed
	Structure：
	Molecular Formula：
	Molecular weight：348.34
	Property：yellow crystal（Methanol-Acetonitrile）. Decomposition point：264℃∽267℃，[α]25D+31.3.（Chloroform-Methano）. It has fierce blue fluorescence under ultraviolet and can't produce steady salt with acid.
	Source：Fruit and leaf of Camptotheca acuminata Decne
	Quality Standard:
	Inspection item Quality level Results Appearance Yellow Powder Yellow Powder Identification Positive Positive Melting point 259－263℃ 261℃ Loss on drying ≤0.5% 0.34% Content(HPLC) ≥99% 99.3% Total plate count ≤1000cfu/g 200cfu/g Mould ≤100cfu/g 10cfu/g E.Coli NEG NEG Salmosella NEG NEG