Product Name: 4,4'-BPS
CAS:80-09-1
Molecular formula: C12H10O4S
Molecular weight: 250.27
EINECS:201-250-5
Appearance: white acicular crystal
Chemical properties: melting point 240-241 ℃. It is easily soluble in aliphatic hydrocarbons, alcohols and ethers, slightly soluble in aromatics and difficult to dissolve in water.
Usage: 4,4'-BPS is mainly used as a color fixing agent. In addition, it can be used as plating solution additive, leather tanning agent, dispersant of disperse dyes for high-temperature dyeing, phenolic resin hardening accelerator, resin flame retardant, etc. It is also an intermediate of pesticides, dyes and additives.