Camptothecin Product Specification : 98% -99% ( .... Camptotheca acuminata, a deciduous tree found in southern China. A close analogue, 9-methoxycamptothecin, is also present in the same source ....
Changsha Huacheng Biotech Inc. HBI contributed to Research & Development, Manufacturing and Distribution of Herb Extract active ingredientsâ € ™ extraction, seperation, purifying & Synthetic , and....