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3,3',4,4'-Biphenyltetracarboxylic dianhydride

Also known as: Biphthalic anhydride, BPDA, s-BPDA, 4,4'-Biphthalic anhydride, 5,5'-Bi-2-benzofuran-1,1',3,3'-tetrone, [5,5'-Biisobenzofuran]-1,1',3,3'-tetrone, 3,4,3',4'-Biphenyltetracarboxylic acid dianhydride, 3,3',4,4'-biphenylenetetracarboxylic dianhydride, 3,3',4,4'-biphenyltetracarboxylic acid dianhydride

3,3',4,4'-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H6O6 and a molecular weight of 294.215 g/mol. Key properties include a melting point of 299-305°C, a boiling point of 614.9±48.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 277.4±29.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2420-87-3
Jingsj CID
J-32722-0
Molecular Formula
C16H6O6
Molecular Weight
294.215 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point299-305°C
Boiling Point614.9±48.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point277.4±29.6 °C
Exact Mass294.016449
PSA86.74000
LogP2.74
Vapor Pressure0.0±1.8 mmHg at 25°C
Refractive Index1.697

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 3,3',4,4'-Biphenyltetracarboxylic dianhydride?

The CAS number of 3,3',4,4'-Biphenyltetracarboxylic dianhydride is 2420-87-3.

What are the molecular formula and molecular weight of 3,3',4,4'-Biphenyltetracarboxylic dianhydride?

3,3',4,4'-Biphenyltetracarboxylic dianhydride has molecular formula C16H6O6 and molecular weight 294.215 g/mol.

Is 3,3',4,4'-Biphenyltetracarboxylic dianhydride hazardous?

3,3',4,4'-Biphenyltetracarboxylic dianhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,3',4,4'-Biphenyltetracarboxylic dianhydride?

For 3,3',4,4'-Biphenyltetracarboxylic dianhydride, Upstream Products: 3,3',4,4'-Biphenyltetracarboxylic acid, 4-Chloroformylphthalic anhydride, 1,2-dichloro-1,1,2,2-tetramethyldisilane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,3',4,4'-Biphenyltetracarboxylic dianhydride (CAS 2420-87-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32722-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.