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Merck
CN

252069

Chlorodifluoroacetic anhydride

98%

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About This Item

Linear Formula:
(ClCF2CO)2O
CAS Number:
2834-23-3
Molecular Weight:
242.94
NACRES:
NA.22
PubChem Substance ID:
24855179
UNSPSC Code:
12352100
EC Number:
220-603-4
MDL number:
MFCD00000774

Key Documents

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Product Name

Chlorodifluoroacetic anhydride, 98%

InChI key

VBJIFLOSOQGDRZ-UHFFFAOYSA-N

InChI

1S/C4Cl2F4O3/c5-3(7,8)1(11)13-2(12)4(6,9)10

SMILES string

FC(F)(Cl)C(=O)OC(=O)C(F)(F)Cl

assay

98%

form

liquid

refractive index

n20/D 1.347 (lit.)

bp

96-97 °C (lit.)

density

1.395 g/mL at 25 °C (lit.)

functional group

anhydride
chloro
ester
fluoro

Quality Level

100

Related Categories

Application

Chlorodifluoroacetic anhydride has been used:
  • for dual element acetylation tagging derivatization of amines by using microwave sustained helium emission detector
  • as derivatization reagent in determination of estrone and 17β-estradiol in hair by GC-MS

General description

Photolysis of the vapour of chlorodifluoroacetic anhydride has been studied over the range 19-201°C using 248nm radiation.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP2727
MKCJ9701
MKCF7499
MKCB0293V
MKBX0179V

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Photochemistry of anhydrides. Part 6.-Photolysis of chlorodifluoroacetic anhydride,(CF 2 ClCO) 2 O.
Watkins PE and Whittle E.
J. Chem. Soc., Faraday, 80(8), 2323-2329 (1984)
Multi-element taggant and dual homolog derivatization concepts in GC/MED.
Hagen DF, et al.
Spectrochimica Acta. Part B: Atomic Spectroscopy, 40(1), 335-347 (1985)
M H Choi et al.
The Analyst, 125(4), 711-714 (2000-07-13)
An efficient procedure is described for the determination of estrone and 17 beta-estradiol in hair by gas chromatography-mass spectrometry (GC-MS). The method involves alkyloxycarbonylation with isobutyl chloroformate (isoBCF) of phenolic hydroxy groups after alkaline digestion of hair samples. The resulting
Courtney T Jollymore-Hughes et al.
Bioorganic & medicinal chemistry, 24(21), 5270-5279 (2016-09-18)
Association of cholinesterase with β-amyloid plaques and tau neurofibrillary tangles in Alzheimer's disease offers an opportunity to detect disease pathology during life. Achieving this requires development of radiolabelled cholinesterase ligands with high enzyme affinity. Various fluorinated acetophenone derivatives bind to

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