CAS Number: 63316-43-8
Molecular Formula: C12H11KO5S2
Molecular Weight: 338.43
EINECS Number: 264-097-3 

Main purpose
Flame retardant: 
As a high-heat-stable polycarbonate (PC) additive, the addition amount only needs to be 0.2% - 0.5% to meet the UL94V-0 level flame retardant standard.
It can be compounded with silicone/PTFE compatibilizers or organic phosphate esters, and is used for transparent/semi-transparent halogen-free flame-retardant PC materials. 
Chemical raw materials:
Used for the preparation of paint and coating for motor rotor chips (containing components such as resin and nylon 12)‌
As a fine chemical intermediate, it participates in the synthesis of other sulfonate-based products‌