Bisphenol s types of leather tanning

Bisphenol S also known as 4'4-dihydroxydiphenylsulfone,Bis(4-hydroxyphenyl) sulfone,SDP.The CAS NO. is 80-09-1 and the EINECS No. is 201-250-05.It can be used as Leather Tanning Reagent,Resin Flame Retardant,Dye Intermediate and so on. Bisphenol S can be used in Tanning Leather.It used as a raw material when processing leather.And in actually,the purity of 95% is Pink Crystalline Powder and it more often used in processing leather.Chemicals that change skin into leather are called leather tanning agents.  The tanning agent penetrates into the skin during tanning and combines with the skin fibers to modify the skin and turn it into leather.