![Molecular structure of [1,1'-biphenyl]-4,4'-dithiol (CAS 6954-27-4)](/images/chem_structures_svg/283/6954-27-4.svg)
[1,1'-biphenyl]-4,4'-dithiol
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. 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. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6954-27-4
- Jingsj CID
- J-11253-8
- Molecular Formula
- C12H10S2
- Molecular Weight
- 218.33800 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 165-174ºC |
|---|---|
| Boiling Point | 366.4ºC at 760 mmHg |
| Density | 1.213g/cm3 |
| Flash Point | 176.5ºC |
| Exact Mass | 218.02200 |
| PSA | 77.60000 |
| LogP | 3.93100 |
| Refractive Index | 1.669 |
| Storage Conditions | ?20°C |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H413
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
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 and hazard statements H302 — Harmful if swallowed; H413.
Data compiled from public chemical databases such as PubChem 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-11253-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.