Methylglyoxal
Also known as: Pyruvaldehyde, Pyruvic aldehyde, 2-Oxopropanal, 2-Ketopropionaldehyde, Acetylformaldehyde, 1,2-Propanedione, α-Ketopropionaldehyde, 1-Ketopropionaldehyde, Acetylformyl, Pyroracemic aldehyde, Propanal, 2-oxo-, methylglyoxal
Methylglyoxal (CAS 78-98-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C3H4O2 and a molecular weight of 72.063 g/mol. Key properties include a melting point of 25 °C, a boiling point of 72.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 2.5±4.4 °C. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 78-98-8
- Jingsj CID
- J-7457-3
- Molecular Formula
- C3H4O2
- Molecular Weight
- 72.063 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 25 °C |
|---|---|
| Boiling Point | 72.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 2.5±4.4 °C |
| Exact Mass | 72.021126 |
| PSA | 34.14000 |
| LogP | -0.80 |
| Vapor Pressure | 120.9±0.1 mmHg at 25°C |
| Refractive Index | 1.364 |
| Additional Property | >=10 g/100 mL at 17 ºC |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|
Customs & Trade Information
| HS Code | 2914400090 |
|---|---|
| Summary | 2914400090 other ketone-alcohols and ketone-aldehydes。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 Methylglyoxal?
The CAS number of Methylglyoxal is 78-98-8.
What are the molecular formula and molecular weight of Methylglyoxal?
Methylglyoxal has molecular formula C3H4O2 and molecular weight 72.063 g/mol.
Is Methylglyoxal hazardous?
Methylglyoxal has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of Methylglyoxal?
For Methylglyoxal, Upstream Products: Hydroxyacetone, DL-Glyceraldehyde, Glycerol; Downstream Products: 1-Methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid, 2-Ethyl-3,6-dimethylpyrazine, 5-Isobutyl-2,3-dimethylpyrazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methylglyoxal (CAS 78-98-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7457-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.