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135585

Sigma-Aldrich

4-Chlorobenzoic acid

99%

Synonym(s):

4-CBA, p-Chlorobenzoic acid

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About This Item

Linear Formula:
ClC6H4CO2H
CAS Number:
74-11-3
Molecular Weight:
156.57
Beilstein:
907196
EC Number:
200-805-9
MDL number:
MFCD00002531
UNSPSC Code:
12352100
PubChem Substance ID:
24848211
NACRES:
NA.22
Pricing and availability is not currently available.

Assay

99%

form

powder

mp

238-241 °C (lit.)

solubility

methanol: soluble 1%, clear, colorless to faintly yellow

functional group

carboxylic acid
chloro

SMILES string

OC(=O)c1ccc(Cl)cc1

InChI

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

InChI key

XRHGYUZYPHTUJZ-UHFFFAOYSA-N

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General description

4-Chlorobenzoic acid is a degradation product of indomethacin[1]. It is degraded by Acinetobacter sp. strain ST-1 and causes its dehalogenation to yield 4-hydroxybenzoic acid under both aerobic and anaerobic conditions[2].

Application

4-Chlorobenzoic acid can be used:
  • As a ligand to synthesize luminescent lanthanide complexes for bio-labeling or fiber communication applications.[3]
  • To prepare organotin(IV) chlorobenzoates exhibiting anticorrosion properties.[4]
  • As a ligand to synthesize di-n-butyl(4-chlorobenzoxy)(4-chlorobenzohydroxamato)tin(IV).[5]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

460.4 °F - closed cup

Flash Point(C)

238 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL2194
STBK7717
STBK4743
STBJ9640
STBJ9081

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Synthesis and crystal structure of a mixed-ligand compound di-n-butyl (4-chlorobenzoxy)(4-chlorobenzohydroxamato) tin (IV)
Shang X, et al.
Journal of Organometallic Chemistry, 690(17), 3997-4000 (2005)
Mariana Lanzarini-Lopes et al.
Chemosphere, 188, 304-311 (2017-09-10)
Electrochemical oxidation (EO) is an advanced oxidation process for water treatment to mineralize organic contaminants. While proven to degrade a range of emerging pollutants in water, less attention has been given to quantify the effect of operational variables such applied
Q Q Cai et al.
Water research, 183, 116119-116119 (2020-07-15)
Fluidized bed reactor Fenton (FBR-Fenton) process was adopted for reverse osmosis concentrate (ROC) treatment with three types of carriers, including sand, zeolite and granular activated carbon (GAC). Adsorption studies demonstrated that GAC achieved the best adsorption performance (maximum COD removal
S M Lindenauer et al.
Biomedical engineering, 11(9), 301-306 (1976-09-01)
Knitted Dacron cloth fabricated into tubes has gained widespread acceptance as an arterial prosthesis. Continued research and development in the field of vascular prostheses is required because existing materials are not ideal. This paper relates general developments in vascular prosthesis
Ruiyang Xiao et al.
Environmental pollution (Barking, Essex : 1987), 257, 113498-113498 (2019-11-26)
Carbamazepine (CBZ), a widely detected pharmaceutical in wastewaters, cannot currently be treated by conventional activated sludge technologies, as it is highly resistant to biodegradation. In this study, the degradation kinetics and reaction mechanisms of CBZ by hydroxyl radical (OH) 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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