Flavors & Fragrances
REACH
Propionaldehyde
CAS Number
123-38-6
EC Number
204-623-0
FEMA Number
FEMA 2923
What is Propionaldehyde?
Propionaldehyde (CAS 123-38-6), also known as propionic aldehyde, is a short-chain aliphatic aldehyde used primarily as a building block in flavor and fragrance manufacturing. FEMA 2923.
Where is Propionaldehyde used?
- Flavor creation: aldehydic top notes in food flavoring systems
- Dairy, fruit and bread-type profiles
- Fragrance manufacturing: intermediate for longer-chain aldehydes and aroma chemicals in fine fragrance and personal care
- Cosmetic fragrance compounding: fresh, clean scent profiles in rinse-off and leave-on formats
- It also serves as a chemical intermediate in the production of propionic acid derivatives and trimethylolethane.
Commercial specifications
- High-purity specifications meet flavor and fragrance requirements under FEMA guidelines
- Bulk quantities for industrial and flavor-house procurement
Other Names (Synonyms)
propylic aldehyde|propyl aldehyde|propionic aldehyde|propional|n-propionaldehyde|n-propanal|1-propanal|propanal
What are the physical properties of Propionaldehyde?
Melting Point -81 °C
Boiling Point 49 °C @ Press: 760 Torr
Density 0.8657 g/cm³ @ Temp: 25 °C
Flash Point −16 °F
Appearance Propionaldehyde is a colorless liquid. Very strong, intensive fruit odor
Color White
Odor at 0.10 % in propylene glycol. earthy alcohol wine whiskey cocoa nutty
Form Liquid
Water Solubility 540 g/L (20 ºC)
Vapor Pressure 18.77 psi ( 55 °C)
Refractive Index n 20/D 1.362(lit.)
Log P 0.59 at 25℃
How is Propionaldehyde classified and handled safely? Learn More
Danger
GHS02· Flammable GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H225 Highly Flammable liquid and vapor
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Propionaldehyde?
HS Code 29121900
UN Number 1275
ADR Class 3
Packing Group II
Storage Class 3 - Flammable liquids
WGK (Germany) 1