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Benzoic acid
Benzoic acid

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Benzoic acid
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Benzoic acid

High Quality

Earliest Shipment

Competitive price

Professional Service

 

Benzoic acid, C7H6O2 (or C6H5COOH), is a colorless crystalline solid and the simplest aromatic carboxylic acid. The name derived from gum benzoin, which was for a long time the only source for benzoic acid. Its salts are used as a food preservative and benzoic acid is an important precursor for the synthesis of many other organic substances. The salts and esters of benzoic acid are known as benzoates.

 

Benzoic acidIdentifiersPropertiesStructureHazardsRelated compounds
  

IUPAC name[hide]Benzoic acid
Other names[hide]Benzenecarboxylic acid,
Carboxybenzene,
E210, Dracylic acid
CAS number65-85-0 Y
PubChem243
ChemSpider238 Y
UNII8SKN0B0MIM Y
EC number200-618-2
DrugBankDB03793
KEGGD00038 Y
MeSHbenzoic+acid
ChEBICHEBI:30746 Y
ChEMBLCHEMBL541 Y
RTECS numberDG0875000
Beilstein Reference636131
Gmelin Reference2946
3DMetB00053
Jmol-3D imagesImage 1
Image 2
[show]O=C(O)c1ccccc1 c1ccc(cc1)C(=O)O
[show]InChI=1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9) Y
Key: WPYMKLBDIGXBTP-UHFFFAOYSA-N Y InChI=1/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
Key: WPYMKLBDIGXBTP-UHFFFAOYAD
Molecular formulaC7H6O2
Molar mass122.12 g mol−1
AppearanceColorless crystalline solid
Density1.27 g/cm3[1]
Melting point

122.38 °C, 396 K, 252 °F (source[2])

Boiling point

250 °C, 523 K, 482 °F ([1])

Solubility in water2.9 g/L[1]
Acidity (pKa)4.21
Refractive index (nD)1.5397
Crystal structureMonoclinic
Molecular shapeplanar
Dipole moment1.72 D in Dioxane
MSDSJT Baker
EU IndexNot listed
Main hazardsIrritating
NFPA 704120
Flash point121 °C (250 °F)[1]
Autoignition
temperature
570 °C (1,058 °F)[1]
Related carboxylic acidsHydroxybenzoic acids
Aminobenzoic acids,
Nitrobenzoic acids,
Phenylacetic acid
Related compoundsBenzaldehyde,
Benzyl alcohol,
Benzoyl chloride,
Benzylamine,
Benzamide

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