Propionaldehyde
Also known as: 1-Propanal, 1-Propanone, Aldehyde propionique, C2H5CHO, EINECS 204-623-0, Ethylcarboxaldehyde, MFCD00007020, NCI-C61029, PROPIONIC ALDEHYDE, Propanal, Propanalaldehyde, Propanaldehyde, Propionaldehyde [UN1275] [Flammable liquid], Propionaldehyde,AcroSeal, Proprionaldehyde, aldehydepropionique, aldehydepropionique(french), ethanecarbaldehyde, femanumber2923, n-Propanal
Propionaldehyde (CAS 123-38-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H6O and a molecular weight of 58.079 g/mol. Key properties include a melting point of -81 °C, a boiling point of 49.3±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -25.9±6.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 123-38-6
- Jingsj CID
- J-32917-2
- Molecular Formula
- C3H6O
- Molecular Weight
- 58.079 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -81 °C |
|---|---|
| Boiling Point | 49.3±3.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -25.9±6.0 °C |
| Exact Mass | 58.041866 |
| PSA | 17.07000 |
| LogP | 0.38 |
| Additional Property | 2 (vs air) |
| Vapor Pressure | 299.4±0.1 mmHg at 25°C |
| Refractive Index | 1.348 |
| Additional Property | 540 g/L (20 ºC) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2912190090 |
|---|---|
| Summary | 2912190090 acyclic aldehydes without other oxygen function。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 Propionaldehyde?
The CAS number of Propionaldehyde is 123-38-6.
What are the molecular formula and molecular weight of Propionaldehyde?
Propionaldehyde has molecular formula C3H6O and molecular weight 58.079 g/mol.
Is Propionaldehyde hazardous?
Propionaldehyde has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H332 — Harmful if inhaled.
What are the upstream and downstream products of Propionaldehyde?
For Propionaldehyde, Downstream Products: 1-Ethyl-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid, 3-Methyl-5-phenylpyridine, Diethyl benzylidenemalonate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Propionaldehyde (CAS 123-38-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32917-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.