CMC for Detergent/Oil drilling liquids/ Food Usage:oil drilling,textiles,pharmaceutical,paint,ceramics,chemicals,papermaking 1.CAS No.: 9000- ... is widely used in oil drilling, textiles, pharmaceutical, paint, ceramics, daily-use chemicals, paper and other industries. It can be used as ... 7.H.S. Code: 3912310000 Sell Carboxyl Methyl Cellulose for Drilling (CMC)