Product Description

2,6-Dimethyl-5-heptenal Basic information

Product Name:	2,6-Dimethyl-5-heptenal
Synonyms:	,6-Dimethyl hept-5-en-1-al;2,6-dimethyl-5-heptena;2,6-dimethylhept-;2,6-dimethylhept-5-en-1-al;2,6-dimethylhept-5-enal;ai3-33278;2,6-Dimethyl-5-heptenalstabilized;2,6-Dimethyl-2-hepten-7-al
CAS:	106-72-9
MF:	C9H16O
MW:	140.22
EINECS:	203-427-2
Mol File:	106-72-9.mol

2,6-Dimethyl-5-heptenal Chemical Properties

Boiling point	116-124 °C100 mm Hg(lit.)
density	0.879 g/mL at 25 °C
FEMA	2389 \| 2,6-DIMETHYL-5-HEPTENAL
refractive index	n20/D 1.444(lit.)
Fp	141 °F
form	Liquid
Specific Gravity	0.879
Water Solubility	Soluble in alcohol, paraffin oil. Insoluble in water.
Sensitive	Air Sensitive
JECFA Number	349
InChIKey	YGFGZTXGYTUXBA-UHFFFAOYSA-N
CAS DataBase Reference	106-72-9(CAS DataBase Reference)
NIST Chemistry Reference	5-Heptenal, 2,6-dimethyl-(106-72-9)
EPA Substance Registry System	5-Heptenal, 2,6-dimethyl- (106-72-9)

2,6-Dimethyl-5-heptenal Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36/37/39
RIDADR	1987
WGK Germany	2
RTECS	MJ8797000
Hazard Note	Irritant
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29121900

2,6-Dimethyl-5-heptenal Usage And Synthesis

Chemical Properties	2,6-Dimethyl-5-hepten-1-al was identified in ginger. It is a yellow liquid with a powerful, green, cucumber-like, and melon odor. It can be prepared by Darzens reaction of 6-methyl-5-hepten-2-one with ethyl chloroacetate. The intermediate glycidate is saponified and decarboxylated to yield the title compound. It is used in many fragrance types and is invaluable in the creation ofmelon and cucumber notes.
Chemical Properties	2,6-Dimethyl-5-heptenal has a characteristic odor of melon and a corresponding taste.
Aroma threshold values	Detection: 16 ppb
Taste threshold values	Taste characteristics at 50 ppm: green, melon, watermelon-rind, cucumber, with a waxy, chemical and floral nuance.
Trade name	Melonal (Givaudan), Melomor (Aromor).
Safety Profile	skin and eye irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

2,6-Dimethyl-5-heptenal Preparation Products And Raw materials

Raw materials

Isobutyraldehyde-->Crotonaldehyde

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