4-carboxybenzaldehyde

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Structural formula
Structural formula of 4-carboxybenzaldehyde
General
Surname 4-carboxybenzaldehyde
other names

4-formylbenzoic acid

Molecular formula C 8 H 6 O 3
Brief description

white odorless solid

External identifiers / databases
CAS number 619-66-9
ECHA InfoCard 100.009.645
PubChem 12088
ChemSpider 11591
Wikidata Q23662583
properties
Molar mass 150.13 g mol −1
Physical state

firmly

Melting point

247 ° C

solubility

soluble in water, methanol, DMSO, ether and chloroform.

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315-319-335
P: 261-280-305 + 351 + 338-304 + 340-405-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

4-Carboxybenzaldehyde is a chemical compound from the group of aromatic aldehydes ( benzaldehyde derivatives) and an aromatic carboxylic acid ( benzoic acid derivative).

Extraction and presentation

4-Carboxybenzaldehyde is a by-product of the air oxidation of p -Xylene to terephthalic acid .

properties

4-carboxybenzaldehyde is a white, odorless solid that is soluble in water.

use

4-Carboxybenzaldehyde can be used as a reagent in the esterification of 2,2,6,6,6-tetramethyl-4-oxopiperidinyl-1-oxyl to 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl-4- formyl benzoate can be used. It can also be used for the synthesis of acid-functionalized mesoporous silicone catalysts by condensation of its aldehyde group with -NH2 amine-functionalized silicone.

Individual evidence

  1. a b c d e data sheet 4-Carboxybenzaldehyde, 98% from AlfaAesar, accessed on January 3, 2019 ( PDF )(JavaScript required) .
  2. a b c d Data sheet 4-Formylbenzoic acid, 97% from Sigma-Aldrich , accessed on January 3, 2019 ( PDF ).