Citraconic acid
Also known as: Methylmaleic acid, 2-Methylmaleic acid, (Z)-2-Methyl-2-butenedioic acid, cis-2-Methyl-2-butenedioic acid, (2Z)-2-methylbut-2-enedioic acid, 2-Methyl-2-butenedioic acid, Citraconic, cis-2-methylbutenedioic acid, cis-methylbutenedioic acid
Citraconic acid (CAS 498-23-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6O4 and a molecular weight of 130.09900 g/mol. Key properties include a melting point of 88-94 °C(lit.), a boiling point of 336ºC and a density of 1,62 g/cm3. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 498-23-7
- Jingsj CID
- J-42149-0
- Molecular Formula
- C5H6O4
- Molecular Weight
- 130.09900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 88-94 °C(lit.) |
|---|---|
| Boiling Point | 336ºC |
| Density | 1,62 g/cm3 |
| Exact Mass | 130.02700 |
| PSA | 74.60000 |
| LogP | 0.10190 |
| Vapor Pressure | 2.09E-05mmHg at 25°C |
| Additional Property | FREELY SOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Pulat M, et al. Lipase release through semi-interpenetrating polymer network hydrogels based on chitosan, acrylamide, and citraconic acid. Artif Cells Nanomed Biotechnol. 2014 Apr;42(2):121-7. |
Customs & Trade Information
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Citraconic acid?
The CAS number of Citraconic acid is 498-23-7.
What are the molecular formula and molecular weight of Citraconic acid?
Citraconic acid has molecular formula C5H6O4 and molecular weight 130.09900 g/mol.
Is Citraconic acid hazardous?
Citraconic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of Citraconic acid?
For Citraconic acid, Upstream Products: Itaconic acid, Mesaconic acid, Citric acid; Downstream Products: (R)-(+)-Methylsuccinic acid, (S)-(-)-Methylsuccinic acid, Methacrylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Citraconic acid (CAS 498-23-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42149-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.