H

4-Hydroxybenzaldehyde

IUPAC: 4-hydroxybenzaldehyde

C7H6O2 Organic Compounds CAS 123-08-0
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Quick Reference
Formula / NotationC7H6O2
CAS Number123-08-0
Molecular Weight122.12
Melting Point117 °C
Boiling Point310 °C
Solubility8450 mg/L (at 25 °C)
AppearanceSolid; Sublimes at atmospheric pressure without decomposition; [Merck Index] Light brown crystalline solid; [Aldrich MSDS]
Also Known Asp-Hydroxybenzaldehyde; 123-08-0; 4-Formylphenol; p-Formylphenol; Benzaldehyde, 4-hydroxy-; p-Oxybenzaldehyde; Parahydroxybenzaldehyde; Para-Hydroxybenzaldehyde; NSC-2127; O1738X3Y38
CategoryOrganic Compounds

What is 4-Hydroxybenzaldehyde?

4-hydroxybenzaldehyde is a hydroxybenzaldehyde that is benzaldehyde substituted with a hydroxy group at position C-4. It has a role as an EC 1.14.17.1 (dopamine beta-monooxygenase) inhibitor, a mouse metabolite and a plant metabolite.

Formula & Notation

C7H6O2

IUPAC Name: 4-hydroxybenzaldehyde

Other Names / Synonyms: p-Hydroxybenzaldehyde; 123-08-0; 4-Formylphenol; p-Formylphenol; Benzaldehyde, 4-hydroxy-; p-Oxybenzaldehyde; Parahydroxybenzaldehyde; Para-Hydroxybenzaldehyde; NSC-2127; O1738X3Y38

Properties & Characteristics

Appearance: Solid; Sublimes at atmospheric pressure without decomposition; [Merck Index] Light brown crystalline solid; [Aldrich MSDS]. Molecular formula: C7H6O2. Molecular weight: 122.12 g/mol. Boiling point: 310 °C. Melting point: 117 °C. Solubility: 8450 mg/L (at 25 °C). LogP: 1.4.

Physical Data

PropertyValue
Melting Point117 °C
Boiling Point310 °C
Molecular Weight122.12
Solubility8450 mg/L (at 25 °C)
AppearanceSolid; Sublimes at atmospheric pressure without decomposition; [Merck Index] Light brown crystalline solid; [Aldrich MSDS]

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term 4-Hydroxybenzaldehyde
Formula C7H6O2
CAS Number 123-08-0
Molecular Weight 122.12
Category Organic Compounds
Index All "H" terms
Synonyms p-Hydroxybenzaldehyde; 123-08-0; 4-Formylphenol; p-Formylphenol; Benzaldehyde, 4-hydroxy-; p-Oxybenzaldehyde; Parahydroxybenzaldehyde; Para-Hydroxybenzaldehyde; NSC-2127; O1738X3Y38

Frequently Asked Questions

4-hydroxybenzaldehyde is a hydroxybenzaldehyde that is benzaldehyde substituted with a hydroxy group at position C-4. It has a role as an EC 1.14.17.1 (dopamine beta-monooxygenase) inhibitor, a mouse metabolite and a plant metabolite.

More "H" Terms

1-Hexanol C6H14O 2-Hydroxyethyl methacrylate C6H10O3 Haber Process N₂ + 3H₂ ⇌ 2NH₃ | ΔH = −92 kJ/mol Hafnium Hf Half Cell Half Life Half-Cell E = E° − (RT/nF)lnQ Half-Life A(t) = A₀e^(−λt); t½ = ln2/λ Half-Reaction Halide X⁻ (e.g., F⁻, Cl⁻, Br⁻, I⁻) Halogen F₂, Cl₂, Br₂, I₂, At; Group 17; ns²np⁵ valence configuration Halogenation C-X + Cl₂/Br₂ (hv or AlCl₃) → C-X(halogen); EAS or radical pathway
View all "H" terms →
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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.

AllChemicals.info — The Online Chemical Glossary | https://allchemicals.info/chemical/4-hydroxybenzaldehyde

For educational purposes only. Verify all information before use.