ChemicalBook >> CAS DataBase List >>2,2-Diphenylacetic acid

2,2-Diphenylacetic acid

Chemical Name:
2,2-Diphenylacetic acid
DIPHENYLACETIC ACID;DPAA;2,2-diphenylacetate;'LGC' (2406);iphenylaceticaci;diphenyl-aceticaci;RARECHEM AL BO 1083;DiphenyleaceticAcid;Biphenylacetic acid;diphenylethanoicacid
Molecular Formula:
Molecular Weight:
MDL Number:
MOL File:
Last updated:2024-05-27 15:57:40

2,2-Diphenylacetic acid Properties

Melting point 147-149 °C(lit.)
Boiling point 195°C 25mm
Density 1,257 g/cm3
vapor pressure 0.001Pa at 25℃
refractive index 1.6000 (estimate)
Flash point 195°C/25mm
storage temp. Sealed in dry,Room Temperature
solubility 0.13g/l
form Crystalline Powder
pka 3.94(at 25℃)
color White to creamy-white
PH 3.8 (H2O, 20℃)(saturated solution)
Water Solubility Slightly soluble in water(0.13g/L).
Merck 14,3316
BRN 1910978
LogP 3.17 at 25℃
CAS DataBase Reference 117-34-0(CAS DataBase Reference)
EWG's Food Scores 1
NIST Chemistry Reference Benzeneacetic acid, «alpha»-phenyl-(117-34-0)
EPA Substance Registry System Benzeneacetic acid, .alpha.-phenyl- (117-34-0)


Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
Signal word  Warning
Hazard statements  H302-H319-H412
Precautionary statements  P264-P270-P273-P280-P301+P312-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/38-36/37/38
Safety Statements  24/25-36/37-26
WGK Germany  2
RTECS  AH2515000
HazardClass  IRRITANT
HS Code  29163900
Toxicity mouse,LD50,intraperitoneal,500mg/kg (500mg/kg),Farmaco, Edizione Scientifica. Vol. 13, Pg. 286, 1958.
NFPA 704
2 0

2,2-Diphenylacetic acid price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D204307 Diphenylacetic acid 99% 117-34-0 5g $21.9 2024-03-01 Buy
Sigma-Aldrich D204307 Diphenylacetic acid 99% 117-34-0 100g $99.6 2024-03-01 Buy
TCI Chemical D0869 Diphenylacetic Acid >98.0%(HPLC)(T) 117-34-0 25g $36 2024-03-01 Buy
TCI Chemical D0869 Diphenylacetic Acid >98.0%(HPLC)(T) 117-34-0 100g $92 2024-03-01 Buy
Alfa Aesar A11489 Diphenylacetic acid, 99% 117-34-0 100g $55.9 2024-03-01 Buy
Product number Packaging Price Buy
D204307 5g $21.9 Buy
D204307 100g $99.6 Buy
D0869 25g $36 Buy
D0869 100g $92 Buy
A11489 100g $55.9 Buy

2,2-Diphenylacetic acid Chemical Properties,Uses,Production

Chemical Properties

white to creamy-white crystalline powder


Kinetic resolution of racemic 1-heteroarylalkanols by asymmetric esterification using diphenylacetic acid with pivalic anhydride and a chiral acyl-transfer catalyst is described. Molecular crystal of acridine and diphenylacetic acid and its absolute asymmetric photodecarboxylating condensation generates chirality in a two-component. The activation parameters for the racemization of a series of ortho-alkyl-substituted diphenylacetic acids are determined.


ChEBI: A monocarboxylic acid that is acetic acid where the methyl hydrogens have been replaced by two phenyl groups respectively.

Synthesis Reference(s)

Journal of the American Chemical Society, 69, p. 2325, 1947 DOI: 10.1021/ja01202a023
Synthetic Communications, 17, p. 1919, 1987 DOI: 10.1080/00397918708057804

Purification Methods

Crystallise the acid from *benzene, H2O or aqueous 50% EtOH. [Beilstein 9 H 673, 9 IV 2492.]

Synthesis of 2,2-Diphenylacetic acid from Glyoxylic acid and Benzene
Global( 345)Suppliers
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Hebei Mojin Biotechnology Co., Ltd
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Hebei Duling International Trade Co. LTD
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Capot Chemical Co.,Ltd.
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View Lastest Price from 2,2-Diphenylacetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,2-Diphenylacetic acid pictures 2024-05-27 2,2-Diphenylacetic acid
US $120.00-107.00 / kg 1kg 99% 5000 Ton Hebei Duling International Trade Co. LTD
2,2-Diphenylacetic acid pictures 2023-08-30 2,2-Diphenylacetic acid
US $100.00 / KG 1KG 99% 5000KG Hebei Mojin Biotechnology Co., Ltd
2,2-Diphenylacetic acid pictures 2023-02-13 2,2-Diphenylacetic acid
US $40.00 / kg 1kg 99% 50MT Hebei baicao biology science and technology co., ltd
MONOCARBOXYMETHANEDIPHENYL RARECHEM AL BO 1083 A-PHENYLPHENYLACETIC ACID CARBOXYMETHANEDIPHENYL DIPHENYLMETHANE-A-CARBOXYLIC ACID DIPHENYLMETHANE-ALPHA-CARBOXYLIC ACID DIPHENYLMETHANECARBOXYLIC ACID 'LGC' (2406) 2,2-Diphenylacetic acid .alpha.-phenyl-Benzeneaceticacid DIPHENYLACETIC ACID CRYSTALLINE MELTING POINT STANDARD DIPHENYLACETICACI D DiphenyleaceticAcid Biphenylacetic acid Diphenylacetic acid, 99+% Benzeneacetic acid, .alpha.-phenyl- Diphenylacetic acid, 99+% 100GR DIPHENYLACETIC ACID FOR SYNTHESIS 1,1-diphenylaceticacid Acetic acid, diphenyl- alpha,alpha-Diphenylacetic acid alpha,alpha-diphenylaceticacid alpha-phenyl-benzeneaceticaci alpha-Toluic acid, alpha-phenyl- diphenyl-aceticaci Diphenylethanoic acid diphenylethanoicacid -Phenylbenzeneaceticacid Two phenylacetic acid alpha-Diphenylacetic acid Diphenylacetic Acid > Benzeneacetic acid, α-phenyl- iphenylaceticaci DIPHENYLACETIC ACID 117-34-0 Methadone Impurity 26 DIPHENYLACETIC ACID DPAA 2,2-diphenylacetate 117-34-0 C6H52CHCO2H C6H42CHCOOH C6H52CHCOOH CARBOXYLIC ACID Carboxylic Acids Carbonyl Compounds C13 to C42+ Analytical Chromatography Product Catalog Alphabetic Analytical Standards Building Blocks DIO - DIZ Organic Building Blocks C13 to C42+ Pharmaceutical Intermediates Aromatic Phenylacetic Acids and Derivatives C13 to C42+Alphabetic Carbonyl Compounds Carboxylic Acids