3-Methoxythiophene
3-甲氧基噻吩
Also known as: 3-METHOXYTHIOPHENE, Methyl 3-thienyl ether, m-Methoxythiophene, Thiophene, 3-methoxy-, Methoxythiophene,95%, 3-Methoxy-thiophen, 3-methoxylthiophene, 3-methoxythiopnene, 3-methoxythiphene, MFCD00043894
3-Methoxythiophene (CAS 17573-92-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6OS and a molecular weight of 114.165 g/mol. It is also known as 3-METHOXYTHIOPHENE, Methyl 3-thienyl ether and m-Methoxythiophene. Key properties include a melting point of -7ºC, a boiling point of 155.7±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 49.4±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 17573-92-1
- Jingsj CID
- J-12756-1
- Molecular Formula
- C5H6OS
- Chinese Name
- 3-甲氧基噻吩
- Molecular Weight
- 114.165 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -7ºC |
|---|---|
| Boiling Point | 155.7±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 49.4±0.0 °C |
| Exact Mass | 114.013931 |
| PSA | 37.47000 |
| LogP | 1.81 |
| Vapor Pressure | 3.9±0.2 mmHg at 25°C |
| Refractive Index | 1.521 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
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-Methoxythiophene?
The CAS number of 3-Methoxythiophene is 17573-92-1.
What are the molecular formula and molecular weight of 3-Methoxythiophene?
3-Methoxythiophene has molecular formula C5H6OS and molecular weight 114.165 g/mol.
Is 3-Methoxythiophene hazardous?
3-Methoxythiophene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of 3-Methoxythiophene?
For 3-Methoxythiophene, Upstream Products: 3-Bromothiophene, Sodium methoxide, methyl formate; Downstream Products: 3-Methoxythiophene-2-carbaldehyde, Dimethyl 4-methoxyphthalate.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methoxythiophene (CAS 17573-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12756-1 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.