4,5-Diphenyl-1,3-dioxol-2-one
4,5-二苯基-1,3-二氧戊环-2-酮
Also known as: Benzoin cyclic carbonate, Diphenylvinylene carbonate, Benzoin carbonate, 1,2-Diphenylvinylene carbonate
4,5-Diphenyl-1,3-dioxol-2-one (CAS 21240-34-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H10O3 and a molecular weight of 238.238 g/mol. It is also known as Benzoin cyclic carbonate, Diphenylvinylene carbonate and Benzoin carbonate. Key properties include a melting point of 71-75 °C(lit.), a boiling point of 366.3±52.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 146.0±24.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21240-34-6
- Jingsj CID
- J-1330991-6
- Molecular Formula
- C15H10O3
- Chinese Name
- 4,5-二苯基-1,3-二氧戊环-2-酮
- Molecular Weight
- 238.238 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 71-75 °C(lit.) |
|---|---|
| Boiling Point | 366.3±52.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 146.0±24.8 °C |
Frequently Asked Questions
What is the CAS number of 4,5-Diphenyl-1,3-dioxol-2-one?
The CAS number of 4,5-Diphenyl-1,3-dioxol-2-one is 21240-34-6.
What are the molecular formula and molecular weight of 4,5-Diphenyl-1,3-dioxol-2-one?
4,5-Diphenyl-1,3-dioxol-2-one has molecular formula C15H10O3 and molecular weight 238.238 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,5-Diphenyl-1,3-dioxol-2-one (CAS 21240-34-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1330991-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.