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β-Ionone

β-Ionone structure

β-Ionone 

structure
  • CAS No:

    79-77-6

  • Formula:

    C13H20O

  • Chemical Name:

    β-Ionone

  • Synonyms:

    3-Buten-2-one,4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-,(3E)-;3-Buten-2-one,4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-,(E)-;(3E)-4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-one;trans-β-Ionone;β-Ionone;(E)-β-Ionone;Ionone beta;(E)-4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-one;(E)-4-(2,6,6-Trimethylcyclohex-1-enyl)but-3-en-2-one;trans-β-Lonone;(E)-4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-one;1353674-22-2

  • Categories:

    Cosmetic Ingredient  >  Perfuming

Description

Clear Colorless to Pale Yellow Oil

β-Ionone Basic Attributes

192.3

192.30

1909544

201-224-3

29142300

Characteristics

17.1

2.9

Beta-ionone is a colorless to light yellow liquid with an odor of cedar wood. In very dilute alcoholic solution the odor resembles odor of violets. Used in perfumery.

0.9468 g/cm3 @ Temp: 20 °C

122-124 °C

135-140 °C @ Press: 16 Torr

230 °F

1.512

soluble in water (0.11 mg/mI at 20°C).

2-8°C

<1 hPa (25 °C)

LD50 orally in Rabbit: 2920 mg/kg

Warm woody, dry, and fruity odor

Woody, berry, floral, green and fruity

Safety Information

UN 3082 9/PG 3

2

38-51/53-36

61-36/37-26

EN0500000

Xi,N

Stable under recommended storage conditions.

P273, P391, P501

H401

β-Ionone Use and Manufacturing

Methods of Manufacturing

It is obtained by condensing citral and acetone with potassium hydroxide as a condensing agent and then cyclizing with dilute sulfuric acid to form a mixture of α- and β-ionone, and then obtained by fractional distillation.

Uses

An aroma compound commonly found in essential oils such as rose oil. It is an important fragrance chemical used in perfumery. β-Ionone is effective in the chemoprevention of rat mammary carcinogenesis.

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