Croconic acid
Also known as: 4,5-Dihydroxy-4-cyclopentene-1,2,3-trione, 4,5-Dihydroxycyclopent-4-ene-1,2,3-trione, 1,2-Dihydroxycyclopentene-3,4,5-trione
Croconic acid (CAS 488-86-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H2O5 and a molecular weight of 142.06600 g/mol. Key properties include a melting point of >300ºC(lit.), a boiling point of 291.7ºC at 760mmHg, a density of 2.311g/cm3 and a flash point of 144.4ºC. It is listed by 1 supplier, from 264.00 to 420.00 CNY. Record last updated Nov 3, 2026.
- CAS No.
- 488-86-8
- Jingsj CID
- J-1307300-4
- Molecular Formula
- C5H2O5
- Molecular Weight
- 142.06600 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | >97.0%(T) 5g | ¥1,320.00 | $39.51 /gBest ¥264.00/g CNY | CN China MOQ 5g | |
In Stock | >97.0%(T) 1g | ¥420.00 | $62.85 /g ¥420.00/g CNY | CN China MOQ 1g |
Physicochemical Properties
| Melting Point | >300ºC(lit.) |
|---|---|
| Boiling Point | 291.7ºC at 760mmHg |
| Density | 2.311g/cm3 |
| Flash Point | 144.4ºC |
| Exact Mass | 141.99000 |
| PSA | 91.67000 |
| Vapor Pressure | 1.98E-06mmHg at 25°C |
| Refractive Index | 1.619 |
| Additional Property | Soluble in water and ethanol. |
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 Croconic acid?
The CAS number of Croconic acid is 488-86-8.
What are the molecular formula and molecular weight of Croconic acid?
Croconic acid has molecular formula C5H2O5 and molecular weight 142.06600 g/mol.
Which suppliers offer Croconic acid?
1 supplier(s) listed; reference unit price ¥264.00–420.00 /g.
What are the upstream and downstream products of Croconic acid?
For Croconic acid, Upstream Products: 4-Cyclopentene-1,3-dione, Cyclopentene, Inositol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Croconic acid (CAS 488-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1307300-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.