回复：thanks! i am confused. it is not this one?

If you are talking about a part of pharmaceutical company, it is what I told you. It is very important function for the company. If you are talking about some ingredient, it may be what you wrote. I thought you are talking about job, since this is career forum. CMC is a lot of meaning at different inductry or material. I have no idea what you are talking about now since you didn't offer any background information.

Anyway, good luck to find the information.