4-Hydroxybenzaldehyde
- IUPAC name
- 4-hydroxybenzaldehyde
- Molecular formula
- C7H6O2
- Molecular weight
- 122.12 g/mol
- Exact mass
- 122.036779430 Da
- XLogP3
- 1.4
- Topological polar surface area
- 37.3 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:17597
- ChEMBL:CHEMBL14193
- EPA DTXSID:DTXSID8059552
- PubMed:35953531
- PubMed:35620927
- PubMed:23266278
- PubMed:23122070
- PubMed:22972336
- PubMed:22898957
- PubMed:22873756
- PubMed:22864173
- PubMed:22816306
- PubMed:22812149
- PubMed:22734413
- PubMed:22715727
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 310 °C Source: DrugBank
- Boiling Point: 310.00 to 311.00 °C. @ 760.00 mm Hg Source: Human Metabolome Database (HMDB)
- pKa: 7.61 (at 25 °C) Source: DrugBank
- LogP: 1.35 Source: DrugBank
- LogP: 1.35 Source: Human Metabolome Database (HMDB)
- Melting Point: 117 °C Source: DrugBank
- Melting Point: 117 °C Source: Human Metabolome Database (HMDB)
- Physical Description: Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Solid; Sublimes at atmospheric pressure without decomposition; [Merck Index] Light brown crystalline solid; [Aldrich MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: Solid Source: Human Metabolome Database (HMDB)
- Physical Description: Beige powder; vanillic/nutty odour Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: 8450 mg/L (at 25 °C) Source: DrugBank
- Solubility: 8.45 mg/mL at 25 °C Source: Human Metabolome Database (HMDB)
- Solubility: slightly soluble in water; soluble in organic solvents Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: freely soluble (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- GHS Hazard Statements: Not Classified; Reported as not meeting GHS hazard criteria by 1430 of 1647 companies Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 1647 reports by companies from 13 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 1430 of 1647 reports by companies.; There are 12 notifications provided by 217 of 1647 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Industry Uses: Intermediate Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Present in many plants in small amounts; [Merck Index] Used as flavoring agent or adjuvant; [FDA] Used to make pharmaceuticals; [Hawley] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.