Molecular formula:(C4H9S)3PO CAS:78-48-8 Chemical Name:S,S,S-tri-n-butyl trithiophosphate English Name:S,S,S-tributyl phosphorotrithioate Other names:Thidiazuron,def Molecular Structure: Physical and chemical properties:Light yellow transparent liquid. It has mercaptan smell,Boiling point 150(400pa).Freezing point: -25 below. Relative density: 1.057.Refractive index1.532,Flashing point:>200(close).Water solubility:(20)2.3mg/l.It is acetone, alcohol, benzene and so on soluble and it is stable to heat and dissolve in alkali. Quality index: Index Name Index Super class products First class products Second class products Appearance Light yellow transparent liquid Light yellow transparent liquid Light yellow transparent liquid Content(GC) 98.0 97.0 96.0 C1 0.1 0.1 0.1 Na 0.1 0.1 0.1 Moisture 0.1 0.1 0.1 Toxicity: Rat acute oral LD50325mg/kg,Acute percutaneous LD50850mg/kg.It has irritation of the skin. The operating environment content is