Product > Pharmaceutical Intermediates
Product Name OBSC - 4,4'-Bis(chlorosulphonyl)diphenyl ether
CAS No 121-63-1
Specification

appearance: white powder

purity:98.5% by titration

moisture: 0.3%max      

free acid: 0.2%max

Fe: 20ppm                                                              

Hazardous Information DG 8
Packing

25KG/drum                                                                  

Structure
Molecular Formula

C12H8Cl2O5S2

Usage intermediate for blowing agent OBSH, or other chemicals