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Merck

215163

Chloroacetic anhydride

95%

Synonym(s):

Monochloroacetic acid anhydride

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About This Item

Linear Formula:
(ClCH2CO)2O
CAS Number:
541-88-8
Molecular Weight:
170.98
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24852874
EC Number:
208-794-2
Beilstein/REAXYS Number:
774533
MDL number:
MFCD00000929

Product Name

Chloroacetic anhydride, 95%

InChI key

PNVPNXKRAUBJGW-UHFFFAOYSA-N

InChI

1S/C4H4Cl2O3/c5-1-3(7)9-4(8)2-6/h1-2H2

SMILES string

ClCC(=O)OC(=O)CCl

vapor pressure

<0.75 mmHg ( 20 °C)

assay

95%

form

solid

bp

120-123 °C/20 mmHg (lit.)

mp

48-60 °C (lit.)

solubility

chloroform: soluble 100 mg/mL, clear, colorless to faintly yellow

functional group

anhydride
chloro
ester

Quality Level

200

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Application

Chloroacetic anhydride has been used in the synthesis of:
  • 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA), a water-soluble, thiol-reactive and photo-switchable cross-linker
  • D,L-7-azatryptophan (D,L-7AW)
  • 2-methyl-[3,4-di-O-acetyl-6-O-(chloroacetyl)-1,2-dideoxy-α-D-glucopyrano]-[2′,1′:4,5]-2-oxazoline

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

hcodes

H301,H314

Hazard Classifications

Acute Tox. 3 Oral - 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

289.4 °F - closed cup

flash_point_c

143 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX7701
MKCW0097
MKCV4192
MKCT3780
MKCQ8383

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K L Matta et al.
Carbohydrate research, 51(2), 215-222 (1976-11-01)
The use of the chloroacetyl group as a protecting group has been studied for a 2-methylglyco-[2',1':4,5]-2-oxazoline. The reaction of chloroacetyl chloride or chloroacetic anhydride with 2-acetamido-1,3,4-tri-O-acetyl-2-deoxy-beta-D-glucopyranose provided 2-acetamido-1,3,4-tri-O-acetyl-6-O-(chloroacetyl)-2-deoxy-beta-D-glucopyranose which, on treatment with anhydrous ferric chloride in dichloromethane, produced the desired
J D Brennan et al.
Analytical biochemistry, 252(2), 260-270 (1997-11-05)
The reaction of D,L-7-azatryptophan (D,L-7AW) with tryptophanyl-tRNA synthetase (TrpRS), adenosine triphosphate (ATP), and Mg2+ in the presence of inorganic pyrophosphatase results in the formation of a highly fluorescent l-7AW-adenylate complex. Detection of this complex is based on its enhanced fluorescence
Amandine Gendron et al.
Pharmaceutics, 13(1) (2021-01-16)
Cyclosporin A (CsA) is a molecule with well-known immunosuppressive properties. As it also acts on the opening of mitochondrial permeability transition pore (mPTP), CsA has been evaluated for ischemic heart diseases (IHD). However, its distribution throughout the body and its
Darcy C Burns et al.
Nature protocols, 2(2), 251-258 (2007-04-05)
This protocol describes a procedure for the synthesis of 3,3'-bis(sulfonato)-4,4'-bis(chloroacetamido)azobenzene (BSBCA), a water-soluble, thiol-reactive, photo-switchable cross-linker. In addition, a protocol is outlined for installing the cross-linker in an intramolecular fashion onto proteins bearing two surface-exposed Cys residues. BSBCA is designed

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