1,1-Diethoxy-3-methyl-2-butene
1,1-二乙氧基-3-甲基-2-丁烯
Also known as: 1,1-Diethoxy-3-methyl-2-butene, 1,1-diethoxy-3-methylbut-2-ene, 3-methyl-2-butenal diethyl acetal, prenal diethyl acetal, 3,3-dimethylacrolein diethyl acetal, 2-Butene, 1,1-diethoxy-3-methyl-, 3-methylbut-2-enal diethyl acetal
1,1-Diethoxy-3-methyl-2-butene (CAS 1740-74-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H18O2 and a molecular weight of 158.23800 g/mol. It is also known as 1,1-diethoxy-3-methylbut-2-ene, 3-methyl-2-butenal diethyl acetal and prenal diethyl acetal. Key properties include a boiling point of 53-58ºC20 mm Hg(lit.), a density of 0.837 g/mL at 25ºC(lit.) and a flash point of 140 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1740-74-5
- Jingsj CID
- J-1992554-5
- Molecular Formula
- C9H18O2
- Chinese Name
- 1,1-二乙氧基-3-甲基-2-丁烯
- Molecular Weight
- 158.23800 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 53-58ºC20 mm Hg(lit.) |
|---|---|
| Density | 0.837 g/mL at 25ºC(lit.) |
| Flash Point | 140 °F |
Frequently Asked Questions
What is the CAS number of 1,1-Diethoxy-3-methyl-2-butene?
The CAS number of 1,1-Diethoxy-3-methyl-2-butene is 1740-74-5.
What are the molecular formula and molecular weight of 1,1-Diethoxy-3-methyl-2-butene?
1,1-Diethoxy-3-methyl-2-butene has molecular formula C9H18O2 and molecular weight 158.23800 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1-Diethoxy-3-methyl-2-butene (CAS 1740-74-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992554-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.