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Bis(trimethylenedithio)tetrathiafulvalene

Also known as: Bis(1,3-propylenedithio)tetrathiafulvalene, BPDT-TTF, 2-(6,7-Dihydro-5H-[1,3]dithiolo[4,5-b][1,4]dithiepin-2-ylidene)-6,7-dihydro-5H-[1,3]dithiolo[4,5-b][1,4]dithiepine, 6,6',7,7'-Tetrahydro-Δ2,2'-bi(5H-1,3-dithiolo[4,5-b][1,4]dithiepin), Bis(trimethylenedithio)tetrathiafulvalene [Organic Electronic Material]

Bis(trimethylenedithio)tetrathiafulvalene (CAS 66946-49-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H12S8 and a molecular weight of 412.74400 g/mol. Key properties include a melting point of 250ºC, a boiling point of 519.2ºC at 760 mmHg, a density of 1.7g/cm3 and a flash point of 278.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66946-49-4
Jingsj CID
J-6887-1
Molecular Formula
C12H12S8
Molecular Weight
412.74400 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point250ºC
Boiling Point519.2ºC at 760 mmHg
Density1.7g/cm3
Flash Point278.4ºC
Exact Mass411.87000
PSA202.40000
LogP7.06640
Refractive Index1.889

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Bis(trimethylenedithio)tetrathiafulvalene?

The CAS number of Bis(trimethylenedithio)tetrathiafulvalene is 66946-49-4.

What are the molecular formula and molecular weight of Bis(trimethylenedithio)tetrathiafulvalene?

Bis(trimethylenedithio)tetrathiafulvalene has molecular formula C12H12S8 and molecular weight 412.74400 g/mol.

What are the upstream and downstream products of Bis(trimethylenedithio)tetrathiafulvalene?

For Bis(trimethylenedithio)tetrathiafulvalene, Upstream Products: Tetrathiafulvalene, Dimethyl 2-thioxo-1,3-dithiole-4,5-dicarboxylate, 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. "Bis(trimethylenedithio)tetrathiafulvalene (CAS 66946-49-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6887-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.