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[1,1'-biphenyl]-4,4'-dithiol

联苯-4,4'-二硫醇

Also known as: 4,4'-biphenyldithiol, 4,4'-dimercaptobiphenyl, 4-(4-mercaptophenyl)benzenethiol, 4-(4-sulfanylphenyl)benzenethiol, biphenyl-4,4'-dithiol

[1,1'-biphenyl]-4,4'-dithiol (CAS 6954-27-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C12H10S2 and a molecular weight of 218.33800 g/mol. It is also known as 4,4'-biphenyldithiol, 4,4'-dimercaptobiphenyl and 4-(4-mercaptophenyl)benzenethiol. Key properties include a melting point of 165-174ºC, a boiling point of 366.4ºC at 760 mmHg, a density of 1.213g/cm3 and a flash point of 176.5ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6954-27-4
Jingsj CID
J-11253-2
Molecular Formula
C12H10S2
Chinese Name
联苯-4,4'-二硫醇
Molecular Weight
218.33800 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165-174ºC
Boiling Point366.4ºC at 760 mmHg
Density1.213g/cm3
Flash Point176.5ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of [1,1'-biphenyl]-4,4'-dithiol?

The CAS number of [1,1'-biphenyl]-4,4'-dithiol is 6954-27-4.

What are the molecular formula and molecular weight of [1,1'-biphenyl]-4,4'-dithiol?

[1,1'-biphenyl]-4,4'-dithiol has molecular formula C12H10S2 and molecular weight 218.33800 g/mol.

Is [1,1'-biphenyl]-4,4'-dithiol hazardous?

[1,1'-biphenyl]-4,4'-dithiol has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "[1,1'-biphenyl]-4,4'-dithiol (CAS 6954-27-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11253-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.