3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione
3,4-二(叔丁氧基)-3-环丁烯-1,2-二酮
Also known as: 3,4-Di-tert-butoxycyclobut-3-ene-1,2-dione, 3,4-bis(1,1-dimethylethoxy)-3-Cyclobutene-1,2-dione, Ditertbutyl squarate, 3,4-bis[(2-methylpropan-2-yl)oxy]cyclobut-3-ene-1,2-dione
3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione (CAS 66478-66-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H18O4 and a molecular weight of 226.26900 g/mol. It is also known as 3,4-Di-tert-butoxycyclobut-3-ene-1,2-dione, 3,4-bis(1,1-dimethylethoxy)-3-Cyclobutene-1,2-dione and Ditertbutyl squarate. Key properties include a boiling point of 331ºC at 760 mmHg, a density of 1.08 and a flash point of 144.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66478-66-8
- Jingsj CID
- J-1491893-5
- Molecular Formula
- C12H18O4
- Chinese Name
- 3,4-二(叔丁氧基)-3-环丁烯-1,2-二酮
- Molecular Weight
- 226.26900 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 331ºC at 760 mmHg |
|---|---|
| Density | 1.08 |
| Flash Point | 144.1ºC |
Frequently Asked Questions
What is the CAS number of 3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione?
The CAS number of 3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione is 66478-66-8.
What are the molecular formula and molecular weight of 3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione?
3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione has molecular formula C12H18O4 and molecular weight 226.26900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Di(tert-butoxy)-3-cyclobutene-1,2-dione (CAS 66478-66-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1491893-5 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.