3,4-Dimethoxythiophene
Also known as: 3,4-Dimethoxythiophene, 3,4-dimethoxythiophene, DMOT, 3,4-Dimethoxythiophen, Thiophene, 3,4-dimethoxy-, AKOS BBS-00006359, MFCD01096546
3,4-Dimethoxythiophene (CAS 51792-34-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8O2S and a molecular weight of 144.191 g/mol. Key properties include a boiling point of 184.4±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 65.3±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51792-34-8
- Jingsj CID
- J-35804-3
- Molecular Formula
- C6H8O2S
- Molecular Weight
- 144.191 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 184.4±20.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 65.3±21.8 °C |
| Exact Mass | 144.024506 |
| PSA | 46.70000 |
| LogP | 1.63 |
| Vapor Pressure | 1.0±0.3 mmHg at 25°C |
| Refractive Index | 1.511 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. 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 3,4-Dimethoxythiophene?
The CAS number of 3,4-Dimethoxythiophene is 51792-34-8.
What are the molecular formula and molecular weight of 3,4-Dimethoxythiophene?
3,4-Dimethoxythiophene has molecular formula C6H8O2S and molecular weight 144.191 g/mol.
Is 3,4-Dimethoxythiophene hazardous?
3,4-Dimethoxythiophene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of 3,4-Dimethoxythiophene?
For 3,4-Dimethoxythiophene, Upstream Products: 3,4-Dibromothiophene, Dimethyl 3,4-dihydroxythiophene-2,5-dicarboxylate, Dimethyl sulfate; Downstream Products: 3,3-dimethyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine, 3,3-diethyl-2,4-dihydrothieno[3,4-b][1,4]dioxepine, 3,4-Propylenedioxythiophene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Dimethoxythiophene (CAS 51792-34-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35804-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.