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HomeProduct name list4-METHYL-2-PHENYL-2-PENTENAL

4-METHYL-2-PHENYL-2-PENTENAL

Synonym(s):cocoa pentenal

  • CAS NO.:26643-91-4
  • Empirical Formula: C12H14O
  • Molecular Weight: 174.24
  • MDL number: MFCD00051834
  • EINECS: 247-869-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-07-22 15:01:55
4-METHYL-2-PHENYL-2-PENTENAL Structural

What is 4-METHYL-2-PHENYL-2-PENTENAL?

Description

4-Methyl-2-phenyl-2-pentenal has a cocoa aroma. It is often used in chocolate and cocoα-type flavors. May be prepared by aldolic condensation of the corresponding aldehydes in the presence of a basic catalyst.

Chemical properties

4-Methyl-2-phenyl-2-pentenal has a cocoa aroma. It is often used in chocolate and cocoa-type flavors.

Occurrence

Reported found in baked and fried potato, peppermint oil, cocoa, black tea, roasted filberts, potato chips, sesame seed and malt

Preparation

By aldolic condensation of the corresponding aldehydes in the presence of a basic catalyst

Taste threshold values

Taste characteristics at 20 ppm: floral, sweet, waxy and cocoa-like with a honey nuance

Properties of 4-METHYL-2-PHENYL-2-PENTENAL

Boiling point: 96 °C0.7 mm Hg(lit.)
Density  0.983 g/mL at 25 °C(lit.)
refractive index  n20/D 1.536(lit.)
FEMA  3200 | 4-METHYL-2-PHENYL-2-PENTENAL
Flash point: >230 °F
Odor at 100.00 %. sweet cocoa nutty rose powdery
Sensitive  Air Sensitive
JECFA Number 1473
BRN  2042583
CAS DataBase Reference 26643-91-4(CAS DataBase Reference)
EPA Substance Registry System Benzeneacetaldehyde, .alpha.-(2-methylpropylidene)- (26643-91-4)

Safety information for 4-METHYL-2-PHENYL-2-PENTENAL

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 4-METHYL-2-PHENYL-2-PENTENAL

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