alpha-IONONE

PRODUCT IDENTIFICATION

CAS NO. 127-41-3

ALPHA-IONONE

EINECS NO. 204-841-6
FORMULA C13H20O
MOL WT. 192.30

H.S. CODE

2914.23

TOXICITY

 

SYNONYMS a -Cyclocitrylidene acetone;
4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; Alpha-irisone;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE clear to light yellow liquid with an odour of violets
MELTING POINT  
BOILING POINT 126 - 128 C at 12 mmHg
SPECIFIC GRAVITY 0.926 - 0.936
SOLUBILITY IN WATER Slightly (soluble in alcohol, ether, mineral oil)
pH  
VAPOR DENSITY

 

AUTOIGNITION

 

NFPA RATINGS

 

REFRACTIVE INDEX

1.4950 - 1.5050
FLASH POINT

110 C

STABILITY

 

APPLICATIONS

Ionone is a member of terpene, naturally occurring unsaturated hydrocarbons whose carbon skeletons are composed exclusively of isoprene C5 units (CH2=C(CH3)-CH=CH2), consisting of five carbon atoms attached to eight hydrogen atoms (C5H8). The stepwise distillation with water and carbonates yields terpenes. Ionone is a clear to yellowish liquid; boiling point 126 - 128 C at 12 mmHg; soluble in alcohol, ether, and mineral oil. It is used is used in perfumery, flavoring, and vitamin A (retinol) production for cosmetics and toiletries. beta isomer shows a less floral odour than the alpha.

alpha-Ionone

BETA-IONONE

alpha-Ionone

beta-Ionone

It has good substantivity and is used in all areas of perfumery. (Olfactive Note: Floral, Woody, Raspberry Seed, Violet).

Members of Ionone molecules

  • Methyl-alpha-ionone (CAS RN: 79-69-6; 54082-69-8)
    [4-(2,5,6,6-Tetramethyl-2-cyclo-hexen-1-yl)-3-buten-2-one]
  • gamma-lonone (CAS RN: 79-76-5)
    [4-(2,2-dimethyl-6-methylenecyclohexyl)-3-buten-2-one]
  • trans-beta-Ionone (CAS RN: 79-77-6)
    [trans-4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-one]
  • beta-Ionone (CAS RN: 14901-07-6)
    [4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-one]
  • Allyl alpha-ionone (CAS RN: 79-78-7)
    [1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1,6-heptadien-3-one]
  • Isomethyl-beta-ionone (CAS RN: 79-89-0)
    [4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-methyl-3-buten-2-one]
  • alpha-Ionone (CAS RN: 127-41-3; 30685-95-; 31798-11-5; 6901-97-9)
    [4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-one]
  • alpha-Methylionone (CAS RN: 127-42-4; 1322-70-9)
    [1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one]
  • beta-Methylionone (CAS RN: 127-43-5)
    [1-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-1-penten-3-one]
  • Isomethyl-alpha-ionone (CAS RN: 127-51-5)
    [4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-methyl-3-buten-2-one]
  • Pseudoionone (CAS RN: 141-10-6)
    [2,6-Dimethylundeca-2,6,8-triene-10-one]
  • Dihydropseudoionone (CAS RN: 689-67-8)
    [6,10-Dimethyl-undeca-5,9-dien-2-one]
  • Iso-methylpseudoionone (CAS RN: 1117-41-5; 5659-78-9)
    [3,6,10-Trimethylundeca-3,5,9-trien-2-one]
  • Irone (CAS RN: 1335-46-2; 1335-94-0; 8053-28-9)
    [Methylionone isomer mixture]
  • Flopropione (CAS RN: 2295-58-1)
    [1-(2,4,6-trihydroxyphenyl)-1-propanone]
  • Cycloionone (CAS RN: 5552-30-7)
    [2,5,5,8a-Tetramethyl-6,7,8,8a-tetrahydro-5H-1-benzopyran]
  • delta-Methylionone (CAS RN: 7784-98-7)
    [1-(2,6,6-Trimethyl-3-cyclohexen-1-yl)-1-penten-3-one]
  • Ionone (CAS RN: 8013-90-9)
    [isomer mixture]
  • Dihydro-beta-ionone (CAS RN: 17283-81-7)
    [4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-2-butanone]
  • Dihydrodehydro-beta-ionone (CAS RN: 20483-36-7)
    [4-(2,6,6-Trimethyl-1,3-cyclohexadien-1-yl)butan-2-one]
  • alpha-Ionol (CAS RN: 25312-34-9)
    [4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-3-buten-2-ol]
  • Methyl beta-ionol (CAS RN: 93840-90-5)
    [1-(2,6,6-Trimethyl-1-cyclohexen-1-yl)pent-1-en-3-ol]
  • beta-Ionol (CAS RN: 22029-76-1)
    [4-(2,6,6-Trimethyl-1-cyclohexen-1-yl)-3-buten-2-ol
  • Iso-Methyl ionol alpha (CAS RN: 51595-91-6)
    [3-Methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-ol]
  • alpha-Methylionol (CAS RN: 70172-00-8)
    [3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-ol]
  • Dehydrodihydroionol (CAS RN: 57069-86-0)
    [alpha,2,6,6-Tetramethyl-1,3-cyclohexadiene-1-propanol]
  • Iso-methyl tetrahydroionol (CAS RN: 60241-53-4)
    [4-(2,6,6-Trimethylcyclohexyl)-3-methylbutan-2-ol]
  • Tetrahydroionol (CAS RN: 4361-23-3)
    [alpha,2,2,6-Tetramethylcyclohexanepropanol]
  • Vinyl-beta-ionol (CAS RN: 5208-93-5)
    [3-Methyl-1-(2,6,6-trimethylcyclohex-1-en-1-yl)penta-1,4-dien-3-ol]
  • Pseudomethylionone (CAS RN: 26651-96-7)
    [ 7,11-Dimethyl-4,6,10-dodecatrien-3-one]
  • Dihydro-alpha-ionone 31499-72-6; 49749-39-5)
    [4-(2,2,6-Trimethyl-5-cyclohexen-1-yl)-2-butanone]
  • 5,6-Epoxy-beta-ionone (CAS RN: 36340-49-5)
    [trans-4-(2,2,6-Trimethyl-7-oxabicyclo(4.1.0)hept-1-yl)-3-buten-2-one]
  • Methyl alpha-ionone glycidate (CAS RN: 67905-40-2)
    [Methyl 3-methyl-3-(2-(2,6,6-trimethylcyclohex-2-en-1-yl)vinyl)oxirane-2-carboxylate]
  • Hydrogenated alpha-methylionone 68084-50-4)
    [Dihydro-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-1-penten-3-one]
  • Dihydromethyl-alpha-ionone (CAS RN: 68480-17-1)
    [1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)pentan-3-one]
  • Hexahydro-beta-methylionone (CAS RN: 69834-09-9)
    [Methyl alpha,2,2,6-tetramethylcyclohexanepropanol]
  • alpha-Methyl ethyl ionone (CAS RN: 70092-23-8)
    [6-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-2-methyl-5-hexen-4-one]
  • Dimethylionone (CAS RN: 72117-72-7)
    [1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-2-methyl-1-penten-3-one]
SALES SPECIFICATION

APPEARANCE

clear to light yellow liquid with an odour of violets
KETONE CONTENT

98.0% min

ALPHA IONONE (GLC)

80.0% min

SPECIFIC GRAVITY 0.926 - 0.936
TRANSPORTATION
PACKING
170kgs in drum
HAZARD CLASS  
UN NO.  
REMARKS
FEMA Number: 2594
PRICES

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