1,2,4,5-Benzenetetracarboxylic acid

均苯四甲酸

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. It is also known as Pyromellitic acid and Benzene-1,2,4,5-tetracarboxylic acid. 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. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
89-05-4
Jingsj CID
J-39217-2
Molecular Formula
C10H6O8
Chinese Name
均苯四甲酸
Molecular Weight
254.150 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point281-284.5 °C(lit.)
Boiling Point585.8±50.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point322.1±26.6 °C

GHS Safety & Compliance

IrritantSignal word: Warning

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.

Data compiled from public chemical databases 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-39217-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.