4-Hydroxybenzaldehyde

4-Hydroxybenzaldehyde (2-hydroxybenzaldehyde) is an organic compound with the formula C6H4OH(CHO). Along with 2-hydroxybenzaldehyde and 3-hydroxybenzaldehyde, it is one of the three isomers of hydroxybenzaldehyde.

4-Hydroxybenzaldehyde
Names
Preferred IUPAC name
4-Hydroxybenzaldehyde
Other names
p-Hydroxybenzaldehyde, 4-formylphenol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.004.182
KEGG
PubChem CID
UNII
  • InChI=1S/C7H6O2/c8-5-6-1-3-7(9)4-2-6/h1-5,9H Y
    Key: RGHHSNMVTDWUBI-UHFFFAOYSA-N Y
  • InChI=1/C7H6O2/c8-5-6-1-3-7(9)4-2-6/h1-5,9H
    Key: RGHHSNMVTDWUBI-UHFFFAOYAN
SMILES
  • O=Cc1ccc(O)cc1
Properties
C7H6O2
Molar mass 122.123 g·mol−1
Appearance yellow to tan powder
Density 1.129 g/cm3 (130 °C)
Melting point 116 °C (241 °F; 389 K)
Boiling point 310 to 311 °C (590 to 592 °F; 583 to 584 K)
12.9 g/L
Acidity (pKa) 7.61 (25 °C)
Magnetic susceptibility (χ)
-78.0·10−6 cm3/mol
Refractive index (nD)
1.57051 (130 °C)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references
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