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273031

Sigma-Aldrich

3-Chloroperbenzoic acid

≤77%

Synonym(s):

meta-Chloroperbenzoic acid, 3-Chloroperoxybenzoic acid, MCPBA

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About This Item

Linear Formula:
ClC6H4CO3H
CAS Number:
937-14-4
Molecular Weight:
172.57
Beilstein:
608317
MDL number:
MFCD00002127
UNSPSC Code:
12352302
PubChem Substance ID:
24856527
NACRES:
NA.22
form:
solid
Assay:
≤77%
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Quality Level

200

Assay

≤77%

form

solid

reaction suitability

reagent type: oxidant

mp

69-71 °C (lit.)

functional group

chloro
hydroperoxide

storage temp.

2-8°C

SMILES string

OOC(=O)c1cccc(Cl)c1

InChI

1S/C7H5ClO3/c8-6-3-1-2-5(4-6)7(9)11-10/h1-4,10H

InChI key

NHQDETIJWKXCTC-UHFFFAOYSA-N

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General description

3-Chloroperbenzoic acid is a strong oxidizing agent mainly used for the epoxidation of alkenes and also in the Baeyer-Villiger oxidation of ketones to esters.[1][2]

Application

3-Chloroperbenzoic acid has been used in the oxidation of N-p-tolylsulfinyl-(E)-1-phenylethylideneimine to N-p-tolylsulfonyl (E)-1-phenylethylideneimine using dichloromethane as a solvent.[3] It has also been used in the preparation of mono- and di-epoxy-functionalized poly(3-hydroxybutyrate)-based reactive polymers.[4] MCPBA is also an effective oxidizing agent for conversion of α-amide substituted polyesters to their corresponding polysulfones with tunable thermal properties.[5]
Effective oxidant for epoxidizing di-, tri-, and tetra-substituted olefins.

Other Notes

remainder 3-chlorobenzoic acid and water

Signal Word

Danger

Hazard Statements

H242,H314,H317,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Org. Perox. D - Skin Corr. 1C - Skin Sens. 1

Storage Class Code

5.2 - Organic peroxides and self-reacting hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000396482
0000396483
0000396483
0000396482
0000260741

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Preparation of N?p?Tolylsulfonyl?(E)?1?Phenylethylideneimine.
Ruano J
Organic Syntheses, 129-138 (2007)
Passerini addition polymerization of an AB-type monomer?a convenient route to versatile polyesters.
Sehlinger A
European Polymer Journal, 50, 150-157 (2014)
Rearrangements of organic peroxides and related processes.
Yaremenko I
Beilstein Journal of Organic Chemistry, 12, 1647-1647 (2016)
Reactive mono-and di-epoxy-functionalized poly (3-hydroxybutyrate) s. Synthesis and characterization.
Michalak M
Polymer Degradation and Stability, 97(10), 1861-1870 (2012)
Lorenzo Gualandi et al.
Physical chemistry chemical physics : PCCP, 21(7), 3558-3563 (2018-09-20)
The synthesis of novel dibenzo-24-crown ether substituted nitroxides and their use as spin probes for the detection of cation guests by EPR are reported. Formation of a host-guest complex between the proposed spin probes and several cations, both organic and
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Articles

Baeyer-Villiger Oxidation Reaction

The Baeyer-Villiger oxidation is the oxidative cleavage of a carbon-carbon bond adjacent to a carbonyl, which converts the ketones to esters and the cyclic ketones to lactones.

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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