Dear sirs. We are looking for :- ***** molecular formula C8H23N5 CAS 112-57-2 2. Activated clay ( bleaching clay ) H2Al2(SiO3)4-nH2O CAS 68333-91-5 3. WATER GLASS (Sodium Silicate) *****2 CAS: 1344-09-8 4. Alumina Al2O3 CAS 1344-28-1 Kindly send offer and price in US DOLLARS Show More