IUPAC Name: (E)-Undec-9-enal Synonyms: Undec-9-en-1-al ; 9-Hendecenal ; 9-Undecenal ; Aldehyde C-11 undecylenic ; Undecenoic aldehyde CAS NO: 143-14-6 Molecular Formula of 9-Undecenal (CAS NO.143-14-6) : C11H20O Molecular Weight of 9-Undecenal (CAS NO.143-14-6): 168.28 Molecular Structure of 9-Undecenal (CAS NO.143-14-6) : EINECS: 203-973-1 FEMA : 3094 Index of Refraction: 1.442 Surface Tension: 28.8 dyne/cm Density: 0.837 g/cm3 Flash Point: 99.4 °C Enthalpy of Vaporization: 47.98 kJ/mol Boiling Point: 242.8 °C at 760 mmHg Vapour Pressure: 0.0333 mmHg at 25°C Melting point: 7 °C Appearance: colorless to pale yellow oily liquid, Solubility: insoluble in water, soluble in ethanol.
Uses
GB 2760-1996 provides for the use of food spices.
Production
From oxidation of 9 - 11-ol ; or from Reduktion of 9 - 11-ol , then 9-Undecenal (CAS NO.143-14-6) is derived .
Safety Profile
Hazard Codes Xi Risk Statements 38 R38:Irritating to skin. Safety Statements 37/39-26 S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39:Wear suitable gloves and eye/face protection. WGK Germany 2 RTECS YQ2835000