4-Hydroxybenzoic acid
Properties
- Molecular formula
- C7H6O3
- Molar mass
- 138.12 g/mol
- Exact mass
- 138.0317 Da
- Density
- 1.46 g/mL (at 25 °C)
- Melting point
- 214.5 °C
- pKa
- 4.54
- Water solubility
- 5 g/L (25 °C)
- logP
- 1.09Crippen estimate
- Polar surface area
- 57.5 Ų
- H-bond donors / acceptors
- 2 / 2
- Rotatable bonds
- 1
Hazards
Danger
- H315 Causes skin irritation12.2% of notifiers
- H318 Causes serious eye damage85.9% of notifiers
- H319 Causes serious eye irritation13.4% of notifiers
- H335 May cause respiratory irritation75.3% of notifiers
Aggregated from 425 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.
Precautionary statements
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Identifiers
CAS number
99-96-7SMILES
O=C(O)c1ccc(O)cc1InChIKey
FJKROLUGYXJWQN-UHFFFAOYSA-NInChI
InChI=1S/C7H6O3/c8-6-3-1-5(2-4-6)7(9)10/h1-4,8H,(H,9,10)Weigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
9 names
- Benzoic acid, 4-hydroxy-
- Benzoic acid, p-hydroxy-
- p-Hydroxybenzoic acid
- p-Salicylic acid
- 4-Carboxyphenol
- Paraben-acid
- p-Carboxyphenol
- NSC 4961
- p-Hydroxyl benzoic acid
Reactions
Work with 4-Hydroxybenzoic acid
Similar compounds
Terephthalic acid100-21-075 % similar
[1,1′-Biphenyl]-4,4′-dicarboxylic acid787-70-265 % similar
6-Hydroxy-2-naphthoic acid16712-64-464 % similar
4-Bromobenzoic acid586-76-564 % similar
4,4′-Oxybis[benzoic acid]2215-89-660 % similar
5-Hydroxyisophthalic acid618-83-760 % similar
4,4'-Dihydroxybenzophenone611-99-458 % similar
Benzoic acid65-85-058 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds