produktbeskrivelse

Alpha ionone Basic information

Beskrivelse Referanser

Produktnavn:	Alpha ionone
Synonyms:	alfa-IONONE BRI FCC; (±) -4-trans- (2,6,6-trimetyl-cykloheks-2-enyl) -but-3-en-2-on; (3E) -4- (2,6 6-trimetyl-2-cykloheksen-1-yl) -3-buten-2-on; (E) -alfa-ionon; (E) -Î ± -Ionon; (R, S) -3- (E) -Buten-2-on, 4- (2,6,6-trimetyl-2-cykloheksen-1-yl) -; 4- (2,6,6-; ALFA-SIKLOCITRYLIDENEACETON
CAS:	127-41-3
MF:	C13H20O
MW:	192.3
EINECS:	204-841-6
Produkt kategorier:	Biochemistry;Monocyclic Monoterpenes;Intermediates & Fine Chemicals;Pharmaceuticals;Building Blocks;Terpenes;C13 to C14;Carbonyl Compounds;Chemical Synthesis;Citrus aurantium (Seville orange);Ginkgo biloba;Ketones;Nutrition Research;Organic Building Blocks;Phytochemicals by Plant (Food/Spice/Herb)
Mol File:	127-41-3.mol

Alpha ionone Chemical Properties

Melting point	25 ° C
Kokepunkt	259-263 °C(lit.)
tetthet	0.93 g/mL at 25 °C(lit.)
FEMA	2594 \| ALPHA-IONONE
brytningsindeks	n20 / D 1.498 (lys)
Fp	230 ° F
storage temp.	2-8°C
løselighet	Soluble in ethanol fixed oils, propylene glycol. Slightly soluble in alcohol, ether, mineral oil.
Water Solubility	insoluble
JECFA-nummer	388
Merck	14,5056
BRN	2046084
CAS DataBase Referanse	127-41-3 (CAS DataBase Reference)
NIST Chemistry Reference	3-Buten-2-one, 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-, (E)-(127-41-3)
EPA Substance Registry System	.alpha.-Ionone (127-41-3)

Alpha ionone Safety Information

Hazard Codes	Xn, Xi
Risk Statements	42-36-36 / 37/38
Safety Statements	36-24 / 25-26-36 / 37 / 39-27
WGK Germany	2
RTECS	EN0525000
TSCA	Yes
HS kode	29142300

Alpha ionone Usage And Synthesis

Description	The alpha-ionone is the alpha form of ionone. The ionones denote a series of chemical substances belonging to rose ketones including carotene, damascenes and damascenones. It is found in various kinds of essential oils contained in some flowers such as violet. Ionone has three forms including alpha-, beta and gamma-. The alpha-ionone has the aroma odor of violet, which has been widely used in daily chemical flavor and tobacco-used flavor. The alpha-ionone can be made from the thermal decomposition of carotene.
References	Davis, Daniel L., Kenneth L. Stevens, and Leonard Jurd. "Chemistry of tobacco constituents. Oxidation of. alpha.-ionone and the acid-catalyzed rearrangement of 5-keto-. alpha.-ionone." Journal of agricultural and food chemistry 24.1 (1976): 187-189. Fukuda, Kazuyuki C/O Kao Corporation. "PERFUME COMPOSITION." (2014). Laroe, Earl G., and P. A. Shipley. "Whiskey composition:, formation of alpha-and beta-ionone by the thermal decomposition of beta-carotene."Journal of Agricultural & Food Chemistry 18.1(2002):1013-1017.
Description	α-Ionone has a characteristic violet-like odor. α-Ionone may be prepared by condensing citral with acetone to form pseudoionone, which is then cyclized by acid-type reagents.
Chemical Properties	α-Ionone has a warm, woody, berry characteristic violet-like odor. The composition of commercial ionones varies widely in the proportion of α- and β-isomers; the specifications given below refer to the best grade of α- and β-ionones and to a com[1]mercial grade that contains both α- and β-ionones.
Chemical Properties	clear yellow liquid
Uses	An aroma compound commonly found in essential oils such as rose oil. It is a degradation products of caratenoids produced by caratenoid cleavage dioxygenases (CCD).
Rensingsmetoder	Purify α-ionone through a spinning band fractionating column. The semicarbazone has m 157-157.5o (from EtOH) and [] D +433o (c 4,