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Hexanal

CAS Number
66-25-1
EC Number
200-624-5
Chemical Formula
C6H12O
Molecular Weight
100.16 g/mol

Description

Hexanal (CAS 66-25-1 ), also known as n-Caproaldehyde and carrying FEMA number 2557 , is a short-chain aliphatic aldehyde used as a flavoring and fragrance ingredient. It delivers a characteristic fresh, green, grassy note that underpins a broad range of consumer product formulations. In food and beverage flavoring, it contributes to the fresh, cut-grass character of fruit flavors. This is particularly useful in apple, citrus, and tomato profiles where it is used at trace concentrations to enhance naturalness. Fragrance compounders incorporate it into fine fragrance and functional fragrance bases. It adds green top-note lift, especially in floral and chypre compositions. In personal care, it appears in shampoos, body washes, and household cleaners where a fresh, natural-green olfactive character is required. It also serves as a reference standard and process marker in food quality research. Hexanal concentration is monitored as an indicator of lipid oxidation in packaged foods to ensure product stability. The material is supplied as a colorless to pale yellow liquid. It is available in flavor and fragrance grades, with purity typically at 98% or higher for demanding compounding applications. Packaging ranges from small drums to bulk quantities to accommodate both laboratory-scale and commercial production needs. Our supply chain ensures consistent quality for all industrial requirements. Contact us for supply of Hexanal Request Quote

Other Names (Synonyms)

n-Hexylaldehyde | n-Hexanal | n-Caproaldehyde | hexyl aldehyde | Caproic aldehyde | 1-Hexanal

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-56 °C
Boiling Point131 °C @ Press: 760 Torr
Density0.8335 g/cm³ (liquid) @ Temp: 25 °C
Flash Point90 °F
Appearanceliquid
ColorClear colorless to slightly yellow
OdorPungent.
FormLiquid
Water Solubility4.8 g/L (20 ºC)
Vapor Pressure10 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.4035(lit.)
pH4-5 (4.8g/l, H2O, 20℃)
Log P1.97

Safety & Handling

Warning
GHS02· FlammableGHS07· Irritant

Hazard Statements

H226Flammable liquid and vapor
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29121900
UN Number1207
ADR Class3
Packing GroupIII
Storage Class3 - Flammable liquids
WGK (Germany)1