4-Methoxybutanal
Also known as: 4-methoxybutanal, Butanal, 4-methoxy-, 4-methoxy butyraldehyde, 4-Methoxy-butyraldehyd, MFCD08695144
4-Methoxybutanal (CAS 21071-24-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H10O2 and a molecular weight of 102.132 g/mol. Key properties include a boiling point of 142.3±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 38.4±16.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21071-24-9
- Jingsj CID
- J-1516029-9
- Molecular Formula
- C5H10O2
- Molecular Weight
- 102.132 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 142.3±23.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 38.4±16.2 °C |
| Exact Mass | 102.068077 |
| PSA | 26.30000 |
| LogP | 0.07 |
| Vapor Pressure | 5.6±0.3 mmHg at 25°C |
| Refractive Index | 1.389 |
Frequently Asked Questions
What is the CAS number of 4-Methoxybutanal?
The CAS number of 4-Methoxybutanal is 21071-24-9.
What are the molecular formula and molecular weight of 4-Methoxybutanal?
4-Methoxybutanal has molecular formula C5H10O2 and molecular weight 102.132 g/mol.
What are the upstream and downstream products of 4-Methoxybutanal?
For 4-Methoxybutanal, Upstream Products: 4-Methoxy-1-butanol, Methyl 4-methoxybutanoate, Dichloromethane; Downstream Products: 2-(Methoxymethyl)-2-propenal.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methoxybutanal (CAS 21071-24-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516029-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.