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135585

Sigma-Aldrich

4-Chlorbenzoesäure

99%

Synonym(e):

4-CBA, p-Chlorobenzoic acid

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50 G
35,20 €
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About This Item

Lineare Formel:
ClC6H4CO2H
CAS-Nummer:
Molekulargewicht:
156.57
Beilstein:
907196
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.22

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Qualitätsniveau

Assay

99%

Form

powder

mp (Schmelzpunkt)

238-241 °C (lit.)

Löslichkeit

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

Funktionelle Gruppe

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)

InChIKey

XRHGYUZYPHTUJZ-UHFFFAOYSA-N

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Allgemeine Beschreibung

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].

Anwendung

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]

Piktogramme

Exclamation mark

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Acute Tox. 4 Oral

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 2

Flammpunkt (°F)

460.4 °F - closed cup

Flammpunkt (°C)

238 °C - closed cup

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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Kikuo Kobayashi et al.
The Journal of general and applied microbiology, 43(2), 105-108 (1997-04-01)
Acinetobacter sp. strain ST-1, isolated from garden soil, can mineralize 4-chlorobenzoic acid (4-CBA). The bacterium degrades 4-CBA, starting with dehalogenation to yield 4-hydroxybenzoic acid (4-HBA) under both aerobic and anaerobic conditions, suggesting that the dehalogenating enzyme in the strain is
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A key barrier to implementing photocatalysis is delivering light to photocatalysts that are in contact with aqueous pollutants. Slurry photocatalyst systems suffer from poor light penetration and require post-treatment to separate the catalyst. The alternative is to deposit photocatalysts on

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

    1 Antwort
    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 Antwort
    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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