C

Citronellal

IUPAC: 3,7-dimethyloct-6-enal

C10H18O Organic Compounds CAS 106-23-0
Expert Written | Fact Checked | Sources Cited | AllChemicals Editorial Team
Quick Reference
Formula / NotationC10H18O
CAS Number106-23-0
Molecular Weight154.25
Melting Point147 °C
Boiling Point205 °C
Density0.853 g/cu cm at 20 °C
SolubilitySlightly soluble in water
AppearanceColorless to slightly yellow liquid with a strong flowery lemon odor; [HSDB]
Also Known As3,7-dimethyloct-6-enal; 106-23-0; 3,7-Dimethyloct-6-enal; 3,7-Dimethyl-6-octenal; 6-Octenal, 3,7-dimethyl-; 2,3-Dihydrocitral; Citronella; Citronellel; beta-Citronellal; 3,7-Dimethyl-6-octen-1-al
CategoryOrganic Compounds

What is Citronellal?

Citronellal is a monoterpenoid, the main component of citronella oil which gives it its distinctive lemon aroma. It has a role as a metabolite and an antifungal agent. It is an aldehyde and a monoterpenoid.

Formula & Notation

C10H18O

IUPAC Name: 3,7-dimethyloct-6-enal

Other Names / Synonyms: 3,7-dimethyloct-6-enal; 106-23-0; 3,7-Dimethyloct-6-enal; 3,7-Dimethyl-6-octenal; 6-Octenal, 3,7-dimethyl-; 2,3-Dihydrocitral; Citronella; Citronellel; beta-Citronellal; 3,7-Dimethyl-6-octen-1-al

Properties & Characteristics

Appearance: Colorless to slightly yellow liquid with a strong flowery lemon odor; [HSDB]. Molecular formula: C10H18O. Molecular weight: 154.25 g/mol. Boiling point: 205 °C. Melting point: 147 °C. Density: 0.853 g/cu cm at 20 °C. Solubility: Slightly soluble in water. Vapor pressure: 0.28 [mmHg]. LogP: 3.

Physical Data

PropertyValue
Melting Point147 °C
Boiling Point205 °C
Density0.853 g/cu cm at 20 °C
Molecular Weight154.25
SolubilitySlightly soluble in water
AppearanceColorless to slightly yellow liquid with a strong flowery lemon odor; [HSDB]

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 Citronellal
Formula C10H18O
CAS Number 106-23-0
Molecular Weight 154.25
Synonyms 3,7-dimethyloct-6-enal; 106-23-0; 3,7-Dimethyloct-6-enal; 3,7-Dimethyl-6-octenal; 6-Octenal, 3,7-dimethyl-; 2,3-Dihydrocitral; Citronella; Citronellel; beta-Citronellal; 3,7-Dimethyl-6-octen-1-al

Frequently Asked Questions

Citronellal is a monoterpenoid, the main component of citronella oil which gives it its distinctive lemon aroma. It has a role as a metabolite and an antifungal agent. It is an aldehyde and a monoterpenoid.

More "C" Terms

View all "C" terms →
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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.