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Biphenyl-4,4'-dicarboxylic acid

Also known as: [1,1'-Biphenyl]-4,4'-dicarboxylic acid, 4,4'-Bibenzoic acid, 4,4'-Biphenyldicarboxylic acid, 4,4'-Dicarboxybiphenyl, 4,4'-Diphenic acid, 4,4'-Diphenit acid, 4,4'-Diphenyldicarboxylic acid, Diphenyl-4,4'-dicarboxylic acid, 4,4'-Bisbenzoic acid, 4,4'-Dibenzoic acid, p,p'-Diphenic acid, usafdo-69, MFCD00002554

Biphenyl-4,4'-dicarboxylic acid (CAS 787-70-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H10O4 and a molecular weight of 242.23 g/mol. Key properties include a melting point of >300 °C(lit.), a boiling point of 482.5±38.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 259.7±23.3 °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 Nov 3, 2026.

CAS No.
787-70-2
Jingsj CID
J-32716-2
Molecular Formula
C14H10O4
Molecular Weight
242.23 g/mol
Category
Organic Acids
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>300 °C(lit.)
Boiling Point482.5±38.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point259.7±23.3 °C
Exact Mass242.057907
PSA74.60000
LogP3.52
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.639

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 Biphenyl-4,4'-dicarboxylic acid?

The CAS number of Biphenyl-4,4'-dicarboxylic acid is 787-70-2.

What are the molecular formula and molecular weight of Biphenyl-4,4'-dicarboxylic acid?

Biphenyl-4,4'-dicarboxylic acid has molecular formula C14H10O4 and molecular weight 242.23 g/mol.

Is Biphenyl-4,4'-dicarboxylic acid hazardous?

Biphenyl-4,4'-dicarboxylic acid 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 Biphenyl-4,4'-dicarboxylic acid?

For Biphenyl-4,4'-dicarboxylic acid, Upstream Products: 4-Iodobenzoic acid, 4-Chlorobenzoic acid, 4-Bromobenzoic acid; Downstream Products: Diethyl 4,4'-biphenyldicarboxylate, [1,1'-Biphenyl]-4,4'-dicarbonyl dichloride, Dimethyl biphenyl-4,4'-dicarboxylate.

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

Last updated:

How to cite: Jingsj. "Biphenyl-4,4'-dicarboxylic acid (CAS 787-70-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32716-2 (accessed 2026-11-09).

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