5,5-Dithiobis(2-nitrobenzoic acid)product (DTNB) (Biological level) Molecular fornula:C14H8N2O8S2 ;Molecular wt:396.34 Appearance:white-light yellow crystal powder Purity:≥99% ;CAS:69-78-3;Prod No.:TC-017 Producing Area:LuoYang China