3,3'-Dihydroxydiphenyl disulfide

3,3'-二羟基二苯二硫醚

Also known as: 3,3'-Dihydroxydiphenyl disulfide, Bis(3-hydroxyphenyl) disulfide, 3,3'-Dithiodiphenol, 3-[(3-hydroxyphenyl)disulfanyl]phenol, 3-hydroxyphenyl disulfide, Phenol, 3,3'-dithiobis-, 3,3'-Disulfanediyldiphenol, 3,3'-(Disulphanediyl)diphenol

CAS No.
21101-56-4
Jingsj CID
J-44172-8
Molecular Formula
C12H10O2S2
Chinese Name
3,3'-二羟基二苯二硫醚
Molecular Weight
250.337 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Melting Point89-93 °C(lit.)
Boiling Point437.3±30.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point212.2±23.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 3,3'-Dihydroxydiphenyl disulfide?

21101-56-4

What are the molecular formula and molecular weight of 3,3'-Dihydroxydiphenyl disulfide?

C12H10O2S2, molecular weight 250.337 g/mol

Is 3,3'-Dihydroxydiphenyl disulfide hazardous?

Warning

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026