2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride
Also known as: 1,2-bis(2,4,5-trimethyl-3-thienyl)maleic anhydride, 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride, 3,4-Bis(2,4,5-trimethyl-3-thienyl)-2,5-furandione, 3,4-Bis(2,4,5-trimethyl-3-thienyl)furan-2,5-dione, 3,4-bis(2,4,5-trimethylthiophen-3-yl)furan-2,5-dione, Bistrimethylthienylmaleicanhydride, B1534
2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride (CAS 112440-47-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H18O3S2 and a molecular weight of 346.46400 g/mol. Key properties include a melting point of 168ºC, a boiling point of 514.4ºC at 760 mmHg, a density of 1.297g/cm3 and a flash point of 264.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 112440-47-8
- Jingsj CID
- J-9545-4
- Molecular Formula
- C18H18O3S2
- Molecular Weight
- 346.46400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 168ºC |
|---|---|
| Boiling Point | 514.4ºC at 760 mmHg |
| Density | 1.297g/cm3 |
| Flash Point | 264.9ºC |
| Exact Mass | 346.07000 |
| PSA | 99.85000 |
| LogP | 4.65420 |
| Vapor Pressure | 1.08E-10mmHg at 25°C |
| Refractive Index | 1.625 |
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 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride?
The CAS number of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride is 112440-47-8.
What are the molecular formula and molecular weight of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride?
2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride has molecular formula C18H18O3S2 and molecular weight 346.46400 g/mol.
What are the upstream and downstream products of 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride?
For 2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride, Upstream Products: 2,3,5-Trimethylthiophene, 3-(Cyanomethyl)-2,4,5-trimethylthiophene, 2-Ethoxyethanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3-Bis(2,4,5-trimethyl-3-thienyl)maleic anhydride (CAS 112440-47-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9545-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.