Flavors & Fragrances
REACH
Citronellal
CAS Number
106-23-0
EC Number
203-376-6
FEMA Number
FEMA 2307
What is Citronellal?
Citronellal (CAS 106-23-0), also identified under FEMA 2307, is a naturally occurring aldehyde isolated primarily from citronella, eucalyptus, and lemon-scented botanicals.
Where is Citronellal used?
- Flavor and fragrance: key aroma chemical delivering a fresh, citrus-lemon character
- Fragrance compounding: citrus, floral, and green top notes in fine perfumes, household products, and air care formulations
- Personal care: soaps, shampoos, and body lotions
- Food and beverage: confectionery, baked goods, and citrus-flavored drinks
- It also serves as a synthetic intermediate in the production of citronellol, menthol, and other downstream aroma chemicals.
Good to know: Natural-origin material sourced from citronella or eucalyptus oil commands a premium for natural-positioned formulations.
Commercial specifications
- Natural and synthetic grades
- Drum and IBC quantities
Other Names (Synonyms)
3,7-Dimethyloct-6-enal|3,7-Dimethyl-6-octenal|6-Octenal, 3,7-dimethyl-|2,3-Dihydrocitral|beta-Citronellal|3,7-Dimethyl-6-octen-1-al|3,7-Dimethyloct-6-en-1-al|Rhodinal
What are the physical properties of Citronellal?
Melting Point 76-77 °C
Boiling Point 207 °C @ Press: 760 Torr
Density 0.8573 g/cm³ @ Temp: 20 °C
Flash Point 169 °F
Appearance clear light yellow liquid
Color Clear light yellow
Odor at 10.00 % in dipropylene glycol. sweet dry floral herbal waxy aldehydic citrus
Form Liquid
Water Solubility Slightly miscible with water and ethanol.
Vapor Pressure 14 hPa (88 °C)
Refractive Index n 20/D 1.451(lit.)
pH 7 (H2O)
Log P 3.62 at 25℃
How is Citronellal classified and handled safely? Learn More
Warning
GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H227 Combustible liquid
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
Which trade and regulatory codes apply to Citronellal?
HS Code 29121900
UN Number 3082
ADR Class 9
Packing Group III
Storage Class 10 - Combustible liquids
WGK (Germany) 3