What is meant by COS in Pharma Industry for APIs

A little poking around on the web leads me to think that

COS = Certificate of Suitability

This seems to be a step in European drug approval.

A good site is:

http://www.quality-assistance.com/en/serv-prod-raw.asp

Also, Google has links too much good reading:

http://www.google.com/search?num=100&hl=en&lr=&ie=UTF-8&newwindow=1&safe=off&q=%22Certificate+of+Suitability%22+apis&btnG=Search

I Hope that this helps.

Guy

What is CO-: Certificates of Suitability?

Hi,
Because has another form which is "cost of sales" but in your case I think it is "certificates of suitability".