Oxaloacetic acid
Also known as: 2-Oxosuccinic acid, Ketosuccinic acid, Oxalacetic acid, 2-Oxobutanedioic acid, Butanedioic acid, 2-oxo-, OAA
Oxaloacetic acid (CAS 328-42-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H4O5 and a molecular weight of 132.072 g/mol. Key properties include a melting point of 161 °C (dec.)(lit.), a boiling point of 341.9±25.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 174.8±19.7 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. It is listed by 1 supplier, from 19.60 to 24.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 328-42-7
- Jingsj CID
- J-1335859-4
- Molecular Formula
- C4H4O5
- Molecular Weight
- 132.072 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to OrderPlatform-operated | 99% 500g | ¥9,800.00 | $2.93 /gBest ¥19.60/g CNY | CN China MOQ 500g | |
Made to OrderPlatform-operated | 99% 100g | ¥2,200.00 | $3.29 /g ¥22.00/g CNY | CN China MOQ 100g | |
Made to OrderPlatform-operated | 99% 25g | ¥600.00 | $3.59 /g ¥24.00/g CNY | CN China MOQ 25g |
Physicochemical Properties
| Melting Point | 161 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 341.9±25.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 174.8±19.7 °C |
| Exact Mass | 132.005875 |
| PSA | 91.67000 |
| LogP | -1.60 |
| Vapor Pressure | 0.0±1.6 mmHg at 25°C |
| Refractive Index | 1.498 |
| Additional Property | soluble |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2918300090 |
|---|---|
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Oxaloacetic acid?
The CAS number of Oxaloacetic acid is 328-42-7.
What are the molecular formula and molecular weight of Oxaloacetic acid?
Oxaloacetic acid has molecular formula C4H4O5 and molecular weight 132.072 g/mol.
Which suppliers offer Oxaloacetic acid?
1 supplier(s) listed; reference unit price ¥19.60–24.00 /g.
Is Oxaloacetic acid hazardous?
Oxaloacetic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Oxaloacetic acid (CAS 328-42-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335859-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.