21101-56-4

21101-56-4 - Names and Identifiers

Name	3,3'-Dihydroxydiphenyl disulfide
Synonyms	3,3'-Dihydroxy 3,3'-Dithiodiphenol 3,3'-DIHYDROXYDIPHEN 3,3'-disulfanediyldiphenol 3,3'-(Disulphanediyl)diphenol Bis(3-hydroxyphenyl) Disulfide 3,3'-Dihydroxydiphenyl disulfide 3,3'-DIHYDROXYDIPHENYLDISULPHIDE 3,3'-DIHYDROXYDIPHENYL DISULFIDE 3,3'-Dihydroxydiphenyl Disulfide3,3'-Dithiodiphenol
CAS	21101-56-4
InChI	InChI=1/C12H10O2S2/c13-9-3-1-5-11(7-9)15-16-12-6-2-4-10(14)8-12/h1-8,13-14H

21101-56-4 - Physico-chemical Properties

Molecular Formula	C12H10O2S2
Molar Mass	250.34
Density	1.44±0.1 g/cm3(Predicted)
Melting Point	89-93°C(lit.)
Boling Point	437.3±30.0 °C(Predicted)
Flash Point	212.2°C
Vapor Presure	2.95E-08mmHg at 25°C
pKa	8.91±0.10(Predicted)
Storage Condition	Inert atmosphere,Room Temperature
Refractive Index	1.752
MDL	MFCD03094663

21101-56-4 - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing.
WGK Germany	3
Hazard Note	Irritant

21101-56-4 - Introduction

3,3 '-Dihydroxydiphenyl disulfide is an organic compound with the chemical formula C12H10O2S2. It is a colorless or slightly yellow crystalline solid, soluble in organic solvents such as ethers, alcohols and esters, insoluble in water.

One of the main uses of 3,3 '-Dihydroxydiphenyl disulfide is as a crosslinking agent in certain rubber processing processes. It is widely used in the rubber industry to improve the wear resistance, heat resistance and chemical resistance of rubber. In addition, it can also be used as a catalyst in organic synthesis, a pharmaceutical intermediate, and an antioxidant in cosmetics.

There are various methods for preparing 3,3 '-Dihydroxydiphenyl disulfide. A common method is to react phenol with carbon disulfide, and obtain the product through diazotization reaction, reduction reaction and sulfurization reaction. The specific steps and conditions need to be adjusted according to the experimental requirements.

Regarding safety information, 3,3 '-Dihydroxydiphenyl disulfide is relatively stable under general operating and storage conditions, but contact with strong oxidants should be avoided. Care should be taken to avoid dust and contact with skin, eyes and respiratory tract. In case of accidental contact, rinse immediately with plenty of water. The use and storage of chemicals shall be in accordance with the relevant regulations and the recommendations of the safe operation manual.

Last Update：2024-04-09 20:02:46