1,2,4,5-Benzenetetracarboxylic acid
Also known as: Pyromellitic acid, Benzene-1,2,4,5-tetracarboxylic acid
1,2,4,5-Benzenetetracarboxylic acid (CAS 89-05-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6O8 and a molecular weight of 254.150 g/mol. Key properties include a melting point of 281-284.5 °C(lit.), a boiling point of 585.8±50.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 322.1±26.6 °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.
- 89-05-4
- Jingsj CID
- J-39217-6
- Molecular Formula
- C10H6O8
- Molecular Weight
- 254.150 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 281-284.5 °C(lit.) |
|---|---|
| Boiling Point | 585.8±50.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 322.1±26.6 °C |
| Exact Mass | 254.006271 |
| PSA | 149.20000 |
| LogP | 0.44 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.701 |
| Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
| Additional Property | 1.5 g/100 mL (20 ºC) |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Customs & Trade Information
| HS Code | 2917399090 |
|---|---|
| Summary | 2917399090 aromatic polycarboxylic acids, 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 1,2,4,5-Benzenetetracarboxylic acid?
The CAS number of 1,2,4,5-Benzenetetracarboxylic acid is 89-05-4.
What are the molecular formula and molecular weight of 1,2,4,5-Benzenetetracarboxylic acid?
1,2,4,5-Benzenetetracarboxylic acid has molecular formula C10H6O8 and molecular weight 254.150 g/mol.
Is 1,2,4,5-Benzenetetracarboxylic acid hazardous?
1,2,4,5-Benzenetetracarboxylic acid has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,2,4,5-Benzenetetracarboxylic acid?
For 1,2,4,5-Benzenetetracarboxylic acid, Upstream Products: 1,2,4,5-Tetramethylbenzene, 2,4,5-Trimethylbenzaldehyde, 2,4,5-Trimethylbenzoic acid; Downstream Products: Pyromellitic diimide, Pyromellitic dianhydride, Tetramethyl 1,2,4,5-benzenetetracarboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2,4,5-Benzenetetracarboxylic acid (CAS 89-05-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39217-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.