CAS 107-75-5PubChem CID 7888
Hydroxycitronellal
Hydroxycitronellal is the tertiary alcohol arising from addition of water across the C=C double bond of citronellal. It has a role as a fragrance and an allergen. It is functionally related to a citronellal. — ChEBI
- IUPAC name
- 7-hydroxy-3,7-dimethyloctanal
- Molecular formula
- C10H20O2
- Molecular weight
- 172.26 g/mol
- Exact mass
- 172.146329876 Da
- XLogP3
- 1.6
- Topological polar surface area
- 37.3 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 2
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
7-Hydroxycitronellal3,7-Dimethyl-7-hydroxyoctanalCitronellal hydratePhixiaCyclaliaCyclosiaLaurineFixol
16 more reported names
Lilyl aldehydeMuguettine principleOctanal, 7-hydroxy-3,7-dimethyl-Musuettine principleOxydihydrocitronellalhydroxy citronellal1-OCTANAL, 3,7-DIMETHYL-7-HYDROXY-FEMA No. 25838SQ0VA4YURCHEBI:534593,7-dimethyl-7-hydroxyoctan-1-alNSC-406740MuguetMusuetRefChem:147154203-518-7
External database identifiers
- ChEBI:CHEBI:53459
- ChEMBL:CHEMBL3186027
- EPA DTXSID:DTXSID6042232
- PubMed:31958493
- PubMed:29108680
- PubMed:26795242
- PubMed:25724174
- PubMed:22606039
- PubMed:21661358
- PubMed:21461388
- PubMed:21392029
- PubMed:20795681
- PubMed:20491607
- PubMed:19305786
- PubMed:19243479
Evidence from additional scientific databases
EMBL-EBI ChEBI
Exact identifier matchCHEBI:53459
hydroxycitronellal
The tertiary alcohol arising from addition of water across the C=C double bond of citronellal.
- Formula
- C10H20O2
- Average mass
- 172.268 g/mol
- Monoisotopic mass
- 172.14633 Da
- Formal charge
- 0
- tertiary alcohol — is a (CHEBI:26878)
- allergen — has role (CHEBI:50904)
- fragrance — has role (CHEBI:48318)
- citronellal — has functional parent (CHEBI:47856)
- allergen — has role (CHEBI:50904)
- fragrance — has role (CHEBI:48318)
- tertiary alcohol — is a (CHEBI:26878)
- 12786728 Source: PubMed
- 14678209 Source: PubMed
- 17598033 Source: PubMed
- 17936526 Source: PubMed
- 19243479 Source: PubMed
- 20495907 Source: PubMed
- 20795681 Source: PubMed
- 21392029 Source: PubMed
- 2808836 Source: PubMed
- 3264801 Source: PubMed
- 455972 Source: PubMed
- 467024 Source: PubMed
- 8681536 Source: PubMed
- 8735869 Source: PubMed
- 8879930 Source: PubMed
Additional curated names
7-hydroxy-3,7-dimethyloctanal3,7-dimethyl-7-hydroxyoctan-1-al3,7-Dimethyl-7-hydroxyoctanal7-hydroxycitronellalCitronellal hydratehydroxy citronellal
Cross-references from this source
- CAS: 107-75-5 — ChemIDplus
- CAS: 107-75-5 — NIST Chemistry WebBook
- REGISTRY_NUMBER: 1721290 — Reaxys
- MANUAL_X_REF: HMDB0031739 — HMDB
Mapped by: Exact CAS cross-reference in the ChEBI compound record. Source updated: 2014-05-12. Retrieved: 2026-08-31. Open source record
NIH PubChem PUG-View
Exact identifier match7888
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 241.00 °C. @ 760.00 mm Hg Source: Human Metabolome Database (HMDB)
- Boiling Point: 241 °C; 94-96 °C (1 mm Hg) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Density: 0.918-0.923 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Physical Description: Liquid; Dry Powder; Liquid; CBI Source: EPA Chemical Data Reporting (CDR)
- Physical Description: Liquid; [Sigma-Aldrich MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: colourless liquid with sweet floral lily-like odour Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Refractive Index: 1.447-1.450 Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: slightly Source: Human Metabolome Database (HMDB)
- Solubility: slightly soluble in water; soluble in alcohol, propylene glycol, and oils; insoluble in glycerol Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: 1 ml in 1 ml 50% alcohol (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Note: This chemical does not meet GHS hazard criteria for < 0.1% (1 of 2046) of reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H317 (> 99.9%): May cause an allergic skin reaction [Warning Sensitization, Skin]; H319 (> 99.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P261, P264+P265, P272, P280, P302+P352, P305+P351+P338, P321, P333+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 2046 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 1 of 2046 reports by companies.; There are 9 notifications provided by 2045 of 2046 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)
- Signal: Warning Source: NITE-CMC
- GHS Hazard Statements: H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]; H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]; H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard] Source: NITE-CMC
- Precautionary Statement Codes: P261, P264+P265, P271, P272, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- Signal: Warning Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H317: May cause an allergic skin reaction [Warning Sensitization, Skin]; H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Precautionary Statement Codes: P261, P264+P265, P272, P280, P302+P352, P305+P351+P338, P321, P333+P317, P337+P317, P362+P364, and P501 (click each P-code to see the statement) Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Consumer Uses: Fragrance Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Fragrance Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Used as a fragrance; [EC: SCCNFP] Used as flavoring agent or adjuvant; [FDA] 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 |
|---|---|---|
| EMBL-EBI ChEBI | Exact match | 2026-08-31 |
| 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 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.