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α-ionone

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Origin: China

Cas No: 127-41-3

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 127-41-3 Formula: C13H20O Molecular Weight: 192.29700

Description

The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones, which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils, including rose oil. β-Ionone is a significant contributor to the aroma of roses, despite its relatively low concentration, and is an important fragrance chemical used in perfumery. The ionones are derived from the degradation of carotenoids.
The combination of α-ionone and β-ionone is characteristic of the scent of violets and used with other components in perfumery and flavouring to recreate their scent.
The carotenes α-carotene, β-carotene, γ-carotene, and the xanthophyll, and β-cryptoxanthin, can all be metabolized to β-ionone, and thus have vitamin A activity because they can be converted by plant-eating animals to retinol and retinal. Carotenoids that do not contain the β-ionone moiety cannot be converted to retinol, and thus have no vitamin A activity.

Basic Info

Chemical Name	α-ionone
Synonyms	4-(2,6,6-Trimethylcyclohex-2-en-1-yl)but-3-en-2-one; 4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one; alpha-Ionone; α-Ionone;
CAS No.	127-41-3
Molecular Formula	C13H20O
Molecular Weight	192.29700
PSA	17.07000
LogP	3.51410

Properties

Appearance & Physical State	Colorless liquid with a woody, violet odor.
Density	0.93
Boiling Point	259-263ºC
Melting Point	59 - 61ºC
Flash Point	115ºC
Refractive Index	1.497-1.502
Water Solubility	insoluble
Storage Condition	2-8ºC
Vapor Pressure	0.0144mmHg at 25°C

Safety Info

RTECS	EN0525000
Hazard Class	4.1
Safety Statements	S24/25
HS Code	2914230000
WGK Germany	2
Packing Group	II; III
Risk Statements	R42/43
Hazard Codes	Xn

Synthesis Route

pseudoionone→β-ionone+α-ionone
pseudoionone+4-isopropenyl-3,7-dimethyl-1-octyn-6-en-3-ol→β-ionone+α-ionone
5E-6,10-dimethylundeca-3,5,9-trien-2-one→β-ionone+α-ionone

Precursor

pseudoionone

latilure

Downstream Product

4-(2,6,6-trimethylcyclohex-2-en-1-yl)butan-2-ol
canthaxanthin
β-cryptoxanthin
4-(2,6,6-trimethylcyclohex-2-en-1-yl)butan-2-one

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