The CAS numbers of Our main products are: 7689-03-4,19685-09-7,86639-52-3,136572-09-3,13811-71-7,87-91-2,17026-42-5,2743-38-6,32634-68-7,32634-66-5,80822-15-7,62708-56-9,71607-32-4,71607-31-3,23364-44-5,23190-16-1,29841-69-8,35132-20-8,167316-27-0,144222-34-4.