| Identification | More | [Name]
Diphenic acid | [CAS]
482-05-3 | [Synonyms]
[1,1'-BIPHENYL]-2,2'-DICARBOXYLIC ACID
2,2'-BIBENZOIC ACID
2,2'-BIPHENYLDICARBOXYLIC ACID
2,2'-DICARBOXYBIPHENYL
2,2'-DICARBOXY DIPHENYL
2,2'-DIPHENIC ACID
2,2'-DIPHENYLDICARBOXYLIC ACID
BIPHENIC ACID
BIPHENYL-2,2'-DICARBOXYLIC ACID
DIPHENIC ACID
DIPHENYL-2,2'-DICARBOXYLIC ACID
DIPHENYL-2,2-DICARBOXYLIC ACID
O-DIPHENIC ACID
O,O'-BIBENZOIC ACID
O,O'-DIPHENIC ACID
O-PHENYL BENZOIC ACID
RARECHEM AL BE 0377
2,2?Diphenit acid
Diphenicacid,96%
Diphenic | [EINECS(EC#)]
207-576-4 | [Molecular Formula]
C14H10O4 | [MDL Number]
MFCD00002464 | [Molecular Weight]
242.23 | [MOL File]
482-05-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Off-white powder | [Melting point ]
227-229 °C(lit.) | [Boiling point ]
345.05°C (rough estimate) | [density ]
1.2695 (rough estimate) | [refractive index ]
1.5389 (estimate) | [storage temp. ]
Store below +30°C. | [solubility ]
almost transparency in Methanol | [form ]
powder to crystal | [pka]
pKa 3.20(H2O t=23.0) (Uncertain);5.06(H2O t=23.0) (Uncertain) | [color ]
White to Orange to Green | [PH]
4-5 (H2O, 20℃) | [Water Solubility ]
insoluble (20 ºC) | [Merck ]
14,3310 | [BRN ]
2053625 | [InChIKey]
GWZCCUDJHOGOSO-UHFFFAOYSA-N | [CAS DataBase Reference]
482-05-3(CAS DataBase Reference) | [NIST Chemistry Reference]
2,2'-Biphenyldicarboxylic acid(482-05-3) | [EPA Substance Registry System]
482-05-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
S37:Wear suitable gloves . | [WGK Germany ]
3
| [Autoignition Temperature]
390 °C | [TSCA ]
Yes | [HS Code ]
29173980 |
| Questions And Answer | Back Directory | [Description]
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.
| [Sources]
https://www.alfa.com/zh-cn/catalog/A15863/
https://www.tandfonline.com/doi/abs/10.1080/00397911.2017.1298805?journalCode=lsyc20
|
| Hazard Information | Back Directory | [Chemical Properties]
Off-white powder | [Definition]
ChEBI: Diphenic acid is a dicarboxylic acid. It is a conjugate acid of a diphenate(1-). It derives from a hydride of a biphenyl. | [Synthesis Reference(s)]
Journal of the American Chemical Society, 82, p. 2876, 1960 DOI: 10.1021/ja01496a051
Organic Syntheses, Coll. Vol. 1, p. 222, 1941
Synthesis, p. 731, 1982 | [Purification Methods]
Crystallise diphenic acid from water. Hot Ac2O provides the anhydride below. [Beilstein 9 H 922, 9 IV 3552.] |
|
|