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Merck
CN

142859

Difluoroacetic acid

98%

Synonym(s):

1,1-Difluoroacetic acid, 2,2-Difluoroacetic acid

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About This Item

Linear Formula:
F2CHCO2H
CAS Number:
381-73-7
Molecular Weight:
96.03
UNSPSC Code:
12352106
NACRES:
NA.22
PubChem Substance ID:
24848539
EC Number:
206-839-0
Beilstein/REAXYS Number:
1098588
MDL number:
MFCD00004220

Key Documents

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Product Name

Difluoroacetic acid, 98%

InChI key

PBWZKZYHONABLN-UHFFFAOYSA-N

InChI

1S/C2H2F2O2/c3-1(4)2(5)6/h1H,(H,5,6)

SMILES string

OC(=O)C(F)F

assay

98%

form

liquid

refractive index

n20/D 1.344 (lit.)

bp

132-134 °C (lit.)

mp

−1 °C (lit.)

density

1.526 g/mL at 25 °C (lit.)

functional group

carboxylic acid
fluoro

Quality Level

200

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Application

Used in the preparation of 2-difluoromethylbenzimidazoles, -oxazoles and -thiazoles from ortho-substituted anilines mediated by triphenylphoshine.

General description

Difluoroaceticacid is a monocarboxylic acid and an organofluorine compound. Difluoroaceticacid is easy-to-handle reagent, useful for obtaining difluoromethyl substituents. Difluoroacetic acid can be used asdifluoromethylating reagent for the direct C−H difluoromethylation ofheteroaromatic compounds.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

flash_point_f

172.4 °F - closed cup

flash_point_c

78 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN8879
BCCM6972
BCCL6073
BCCK1444
BCCK5373

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N Illy et al.
Comptes rendus des seances de la Societe de biologie et de ses filiales, 175(2), 242-246 (1981-01-01)
Our experiments were carried out in normal and streptozotocin-diabetic rats. The effects of sodium difluoroacetate (DFA) at the dose of 40 mg/kg daily were studied on the blood and retinal lactate levels; these effects were compared to those of an
Difluoroacetic acid as a new reagent for direct C- H difluoromethylation of heteroaromatic compounds
Tung TT, et al.
Chemistry?A European Journal , 23(72), 18125-18128 (2017)
The direct C--H difluoromethylation of heteroarenes based on the photolysis of hypervalent iodine (III) reagents that contain difluoroacetoxy ligands
Sakamoto R. et al.
Organic Letters, 19(19), 5126-5129 (2017)
Tetrahedron Letters, 48, 3251-3251 (2007)
Brian M Wagner et al.
Journal of chromatography. A, 1489, 75-85 (2017-02-19)
To facilitate mass transport and column efficiency, solutes must have free access to particle pores to facilitate interactions with the stationary phase. To ensure this feature, particles should be used for HPLC separations which have pores sufficiently large to accommodate
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