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Aromatic building blocks

Diphenic acid

Also known as [1,1'-Biphenyl]-2,2'-dicarboxylic acid, 2,2'-Biphenyldicarboxylic acid, 2,2'-Bibenzoic acid

CAS 482-05-3Formula C14H10O4Molar mass 242.23 g/molEC 207-576-4
GHS signal word: Warning. Pictograms: Harmful or irritant 19 suppliers listed
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Diphenic acid chemical structure, C14H10O4, CAS 482-05-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
482-05-3
Formula
C14H10O4
Molar mass
242.23 g/mol
EC number
207-576-4
HS code
291739
Category
Aromatic building blocks

What is Diphenic acid?

Plain description, key identifiers and synonyms

Diphenic acid is a dicarboxylic acid. It is a conjugate acid of a diphenate(1-). It derives from a hydride of a biphenyl.

Diphenic acid is a dicarboxylic acid of biphenyl.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-(2-carboxyphenyl)benzoic acid
CAS number
482-05-3 CAS number cross-checked
EC number
207-576-4
Molecular formula
C14H10O4
UNII
QY5X735ZIM
MDL number
MFCD00002464
InChIKey
GWZCCUDJHOGOSO-UHFFFAOYSA-N
InChI
InChI=1S/C14H10O4/c15-13(16)11-7-3-1-5-9(11)10-6-2-4-8-12(10)14(17)18/h1-8H,(H,15,16)(H,17,18)
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)C2=CC=CC=C2C(=O)O)C(=O)O

Synonyms

  • [1,1'-Biphenyl]-2,2'-dicarboxylic acid
  • 2,2'-Biphenyldicarboxylic acid
  • 2,2'-Bibenzoic acid
  • 2,2'-Dicarboxybiphenyl
  • 2,2'-Diphenic acid
  • O,O'-Diphenic acid
  • O,O'-Bibenzoic acid
  • (1,1'-Biphenyl)-2,2'-dicarboxylic acid
  • Biphenyl-2,2'-dicarboxylic acid
  • 2-(2-carboxyphenyl)benzoic acid
  • 2,2'-Biphenyl-dicarboxylic acid
  • Diphenyl-2,2'-dicarboxylic acid
  • 2'-Carboxybiphenyl-2-carboxylic acid
  • 2,2'-BibenzoicAcid, 2,2'-Dicarboxybiphenyl, DiphenicAcid
  • Diphenic acid, 97%
  • [1,2'-dicarboxylic acid
  • 2,2'-Dicarboxy diphenyl
  • Biphenyl-2,21-dicarboxylic acid
  • [1,1-biphenyl]-2,2-dicarboxylic acid
  • [1,1'-Biphenyl]-2,2'-dicarboxylicacid
  • Biphenyl-2,2 inverted exclamation mark -dicarboxylic Acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
242.23 g/molcalc.
Exact mass
242.0579 Dacalc.
LogP (octanol/water)
2.75calc.
Topological polar surface area
74.6 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc(-c2ccccc2)cc1

c1ccc(-c2ccccc2)cc1

2 rings, 12 atoms, the Biphenyl ring system.

32,228 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Diphenic acid suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 19 suppliers
19 of 19 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

19 suppliers in 6 countries

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Diphenic acid price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Diphenic acid is traded under.

HS 2917.39Indicative HS code

Aromatic polycarboxylic acids, not elsewhere classified in subheading 2917.3

World exports in 2024
$1.87B
+19.8% vs 2023, imports $2.65B
2019 to 2024
Top exporters
  1. China31.7%
  2. South Korea12.9%
  3. United States9.8%
Top importers
  1. Egypt12.7%
  2. United States12.5%
  3. China10.3%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Diphenic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Diphenic acid, based on the data on this page

What is Diphenic acid?

Diphenic acid is a dicarboxylic acid. It is a conjugate acid of a diphenate(1-). It derives from a hydride of a biphenyl.

What is the CAS number of Diphenic acid?

The CAS registry number of Diphenic acid is 482-05-3.

What is the molecular formula and weight of Diphenic acid?

The molecular formula of Diphenic acid is C14H10O4 and its molar mass is 242.23 g/mol.

What is Diphenic acid used for?

Known uses and roles of Diphenic acid include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Diphenic acid hazardous?

Diphenic acid carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Diphenic acid?

Diphenic acid is usually classified under HS code 291739 (Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Diphenic acid?

CompoundList lists 19 suppliers of Diphenic acid in China, United States, Canada, Germany and 2 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Diphenic acid in India?

1 supplier in India list Diphenic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Diphenic acid?

Suppliers quote Diphenic acid on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Diphenic acid

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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