1,1-Diethoxy-3-methyl-2-butene
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. 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 60.0 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 1740-74-5
- Jingsj CID
- J-1992554-3
- Molecular Formula
- C9H18O2
- Molecular Weight
- 158.23800 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/2/2026
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 | 60.0 °C |
| Exact Mass | 158.13100 |
| PSA | 18.46000 |
| LogP | 2.35170 |
| Vapor Pressure | 0.953mmHg at 25°C |
| Refractive Index | n20/D 1.421(lit.) |
Customs & Trade Information
| HS Code | 2911000000 |
|---|---|
| Summary | 2911000000 acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
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.
What are the upstream and downstream products of 1,1-Diethoxy-3-methyl-2-butene?
For 1,1-Diethoxy-3-methyl-2-butene, Upstream Products: 3-Methyl-2-butenal, Triethyl orthoformate, Sulfamic acid; Downstream Products: 2-Ethylacrolein, 3-Methyl-2-butenal, 2,2-dimethyl-2H-chromene-6-carbonitrile.
Data compiled from public chemical databases such as PubChem 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-1992554-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.