... and Benzaldehyde in medical industry. Molecular Formula : Na2SO3 Molecule Weight : 126.04 CAS NO .: 7757-83-7 Application : (1) Industry Grade ... Sanxiang Chemical Co., Ltd.Address : Qilishan community, Yueyang, Hunan, R.P.ChinaFax :+86-730-8555728Contact person : Henry Wang +86-13469239119 Sodium ...