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Diphenic acid

Description Sources
Diphenic acid
Diphenic acid
Chemical Name:
Diphenic acid
Diphenic;BIPHENIC ACID;DIPHENIC ACID;2,2-United acid;O-DIPHENIC ACID;Diphenicacid,96%;Diphenic acid 97%;2,2?Diphenit acid;2,2'-DIPHENIC ACID;O,O'-DIPHENIC ACID
Molecular Formula:
Formula Weight:
MOL File:

Diphenic acid Properties

Melting point:
227-229 °C(lit.)
Boiling point:
345.05°C (rough estimate)
1.2695 (rough estimate)
refractive index 
1.5389 (estimate)
storage temp. 
Store below +30°C.
pKa 3.20(H2O t=23.0) (Uncertain);5.06(H2O t=23.0) (Uncertain)
4-5 (H2O, 20℃)
Water Solubility 
insoluble (20 ºC)
CAS DataBase Reference
482-05-3(CAS DataBase Reference)
NIST Chemistry Reference
2,2'-Biphenyldicarboxylic acid(482-05-3)
EPA Substance Registry System
[1,1'-Biphenyl]- 2,2'-dicarboxylic acid(482-05-3)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39-37
WGK Germany  3
HS Code  29173980
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Diphenic acid price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 126691 Diphenic acid 97% 482-05-3 25g $99.4 2018-11-13 Buy
Sigma-Aldrich 126691 Diphenic acid 97% 482-05-3 100g $244 2018-11-13 Buy
TCI Chemical D0864 2,2'-Biphenyldicarboxylic Acid >98.0%(GC)(T) 482-05-3 25g $115 2018-11-22 Buy
TCI Chemical D0864 2,2'-Biphenyldicarboxylic Acid >98.0%(GC)(T) 482-05-3 100g $345 2018-11-22 Buy
Sigma-Aldrich 8.02256 2,2'-Biphenyldicarboxylic acid for synthesis. CAS 482-05-3, chemical formula 2-(HOOC)C H C H -2-(COOH)., for synthesis 482-05-3 8022560050 $98.5 2018-11-23 Buy

Diphenic acid Chemical Properties,Uses,Production


2,2’Dicarboxybiphenyl acid is also known as diphenic acid, being a useful pharmaceutical intermediate and used in the synthesis of dyes. Diphenic acid derivatives have attracted great attention due to its possession of useful therapeutic properties. Many diphenic acids derivatives have the potential of lowering the risk of chronic diseases such as cancer, cardiovascular diseases and other pathologies. It is applied in many herbs and components of food. Diphenic acids derivatives can usually be found in fruits like blackberry, raspberry and strawberry.


Chemical Properties

Off-white powder

Purification Methods

Crystallise diphenic acid from water. Hot Ac2O provides the anhydride below. [Beilstein 9 H 922, 9 IV 3552.]

Diphenic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Diphenic acid Suppliers

Global( 182)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 CHINA 1374 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32764 55
career henan chemical co
+86-371-86658258 CHINA 10010 58
City Chemical LLC
203.937.8400 United States 101 58
Alfa Aesar 400-610-6006; 021-67582000
021-67582001/03/05 China 30308 84
SiChuang NanBu Honesty Technology Co., Ltd. 0838-5675166
0838-5675535 China 698 55
J & K SCIENTIFIC LTD. 400-666-7788 +86-10-82848833
+86-10-82849933; China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40399 62
INTATRADE GmbH +49 3493/605464
+49 3493/605470 Germany 3587 66
Wujin Linchuan Chemical Co., Ltd 0086-519-86461196
0086-519-86463703;; China 100 65

View Lastest Price from Diphenic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-20 Diphenic acid
US $2.00 / KG 1KG 98% 1 ton

Diphenic acid Spectrum

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