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135577

Sigma-Aldrich

2-Chlorobenzoic acid

98%

Synonym(s):

2-CBA, o-Chlorobenzoic acid

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About This Item

Linear Formula:
ClC6H4CO2H
CAS Number:
118-91-2
Molecular Weight:
156.57
Beilstein:
907340
EC Number:
204-285-4
MDL number:
MFCD00002412
UNSPSC Code:
12352100
PubChem Substance ID:
24848210
NACRES:
NA.22
Pricing and availability is not currently available.

Assay

98%

mp

138-140 °C (lit.)

solubility

cold water: soluble 900 part
alcohol: freely soluble
diethyl ether: freely soluble
water: soluble (hot)

functional group

carboxylic acid
chloro

SMILES string

OC(=O)c1ccccc1Cl

InChI

1S/C7H5ClO2/c8-6-4-2-1-3-5(6)7(9)10/h1-4H,(H,9,10)

InChI key

IKCLCGXPQILATA-UHFFFAOYSA-N

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General description

2-Chlorobenzoic acid degradation by pure cultures of Burkholderia cepacia strain with and without the bacterial hemoglobin gene was studied in parallel membrane bioreactors[1]. Intramolecular hydrogen atom tunneling in 2-chlorobenzoic acid has been studied by low-temperature matrix-isolation infrared spectroscopy[2].

Application

2-Chlorobenzoic acid was used to study the degradation of 2-bromobenzoic acid by Pseudomonas aeruginosa[3].

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

343.4 °F

Flash Point(C)

173 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB0295
STBL2195
MKAA3396
STBL0549
STBK6746

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F K Higson et al.
Applied and environmental microbiology, 56(6), 1615-1619 (1990-06-01)
A strain of Pseudomonas aeruginosa producing 2-bromobenzoic acid, designated 2-BBZA, was isolated by enrichment culture from municipal sewage. It degraded all four 2-halobenzoates as well as certain 3-halo- and dihalobenzoates, though none of the 4-halobenzoates supported growth of this organism.
A C Layton et al.
Journal of industrial microbiology, 13(6), 392-401 (1994-11-01)
The microbial populations in PCB-contaminated electric power substation capacitor bank soil (TVA soil) and from another PCB-contaminated site (New England soil) were compared to determine their potential to degrade PCB. Known biphenyl operon genes were used as gene probes in
Grazia Baggi et al.
Biodegradation, 16(3), 275-282 (2005-05-04)
A study was made of the metabolic and co-metabolic intermediates of 2- and 3-chlorobenzoate, 2,3- and 3,5-dichlorobenzoate to elucidate the mechanism(s) involved in the negative effects observed on the growth of a chlorobenzoate-degrading microbial consortium in the presence of mixed
Gang-hua Lang et al.
Applied microbiology and biotechnology, 83(6), 1085-1094 (2009-03-26)
TfdT is a LysR-type transcriptional regulator that activates the transcription of the chlorocatechol degradative gene operon tfdCDEF of the chlorobenzoate-degrading bacterium Burkholderia sp. NK8. To identify the amino acids involved in the effector recognition by TfdT, a polymerase-chain-reaction-based random mutagenesis
Gejiao Wang et al.
FEMS microbiology letters, 233(2), 307-314 (2004-04-06)
The potential for real-time PCR (RTm-PCR) detection of the genetically engineered strain Pseudomonas putida GN2 was studied during 2-chlorobenzoate (2-CB) degradation in three different soils. The strain contained the constructed plasmid pGN2 which encoded genes for 2-CB oxidation (cbdA) and
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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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