1,3,4,6-Tetrathiapentalene-2,5-dione
Also known as: [1,3]Dithiolo[4,5-d][1,3]dithiole-2,5-dione, 2,4,6,8-Tetrathiabicyclo[3.3.0]oct-1(5)-ene-3,7-dione, 2,5-Dihydro-1,3,4,6-tetrathiapentalene-2,5-dione, THIAPENDIONE, [1,3]Dithiolo[4,5-d]-1,3-dithiole-2,5-dione, [1,3]Dithiolo[4,5-d]-1,3-dithioledione
1,3,4,6-Tetrathiapentalene-2,5-dione (CAS 64394-45-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4O2S4 and a molecular weight of 208.30200 g/mol. Key properties include a melting point of 182ºC (dec.)(lit.), a boiling point of 393ºC at 760 mmHg, a density of 2.05 g/cm3 and a flash point of 194.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 64394-45-2
- Jingsj CID
- J-1484546-6
- Molecular Formula
- C4O2S4
- Molecular Weight
- 208.30200 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 182ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 393ºC at 760 mmHg |
| Density | 2.05 g/cm3 |
| Flash Point | 194.7ºC |
| Exact Mass | 207.87800 |
| PSA | 147.10000 |
| LogP | 1.80620 |
| Refractive Index | 1.93 |
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 1,3,4,6-Tetrathiapentalene-2,5-dione?
The CAS number of 1,3,4,6-Tetrathiapentalene-2,5-dione is 64394-45-2.
What are the molecular formula and molecular weight of 1,3,4,6-Tetrathiapentalene-2,5-dione?
1,3,4,6-Tetrathiapentalene-2,5-dione has molecular formula C4O2S4 and molecular weight 208.30200 g/mol.
What are the upstream and downstream products of 1,3,4,6-Tetrathiapentalene-2,5-dione?
For 1,3,4,6-Tetrathiapentalene-2,5-dione, Downstream Products: Bis(carbonyldithio)tetrathiafulvalene, 4,5-Ethylenedithio-1,3-dithiol-2-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3,4,6-Tetrathiapentalene-2,5-dione (CAS 64394-45-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1484546-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.