Alpha Isomethyl Ionone is a chemical compound obtained by a high-temperature chemical process. It is also known as Acetone or Methyl ionone.
The name describes the structure of the molecule:
- Alpha. This term is often used in organic chemistry to indicate the location of a functional or substituent group. In this case, it refers to the location of the isomethyl group in the ionon molecule.
- Isomethyl refers to an isomer of a methyl group. An isomer is a compound with the same molecular formula as another compound but a different arrangement of atoms in space.
- Ionone. This is a term used to describe a variety of fragrant substances found in a wide range of essential oils. Ionones are often used in perfumery and cosmetics for their pleasant scent.
Description of raw materials used in production:
- Citral - An organic compound used as a starting point in the synthesis of ionones. It's present in many essential oils and has a lemon-like fragrance.
- Hydrogen and catalysts - Used for reducing citral to ionones.
The synthesis process takes place in several stages:
- Preparation. Methylheptenone can be synthesized by reacting isoprene with Methacrolein in the presence of an acid catalyst.
- Cyclization. Methylheptenone is cyclized, using an acid catalyst, to form a mixture of isomeric ionons, including the alpha-isomethyl ion.
It appears as a colourless, white to light yellow liquid with a typical violet odour.
What it is used for and where
Cosmetics
Alpha-Isomethyl Ionone is a restricted ingredient as III/90 a Relevant Item in the Annexes of the European Cosmetics Regulation 1223/2009.
It is a chemical fragrance that is added to products such as liquid soaps, shampoos and others to add a violet scent.
- Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.
- Perfuming. Unlike fragrance, which can also contain slightly less pleasant or characteristic odours, the term perfume indicates only very pleasant fragrances. Used for perfumes and aromatic raw materials.
It is a product that can give allergies.
Other uses
Used as a cold-resistant plasticiser, fixative for gas chromatography, main plasticiser in plastics.
More information:
"Alpha-Isomethyl Ionone, studies"
Typical commercial product characteristics Alpha-Isomethyl Ionone
| Appearance | Colorless or Yellow liquid |
| Boiling Point | 285.3±29.0°C at 760 mmHg |
| Flash Point | 122.1±17.5°C |
| Density | 0.9±0.1 g/cm3 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refraction Index | 1.508 |
| Specific Gravity | 0.925 |
| PSA | 17.07000 |
| LogP | 4.41 |
| Storage | Room Temperature |
| Chemical Safety |  |
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Price:
50ml/1.70 oz $14.50
1000ml/33.80oz $208.00
- Molecular Formula C14H22O
- Molecular Weight 206.32
- Exact Mass 206.167068
- CAS 127-51-5
- UNII 9XP4LC555B
- EC Number 204-846-3
- DSSTox Substance ID DTXSID7027047 DTXSID10859248
- IUPAC (E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
- InChl=1S/C14H22O/c1-10-7-6-8-14(4,5)13(10)9-11(2)12(3)15/h7,9,13H,6,8H2,1-5H3/b11-9+
- InChl Key JRJBVWJSTHECJK-PKNBQFBNSA-N
- SMILES CC1=CCCC(C1C=C(C)C(=O)C)(C)C
- MDL number MFCD00034582
- PubChem Substance ID 329751380
- ChEBI 179835
- SCHEMBL 891912
- NSC 66432
- FEMA 2714
- JECFA 404
- NACRES NA.24
- HS Code 2914299000
Synonyms :
- 3-methyl-4-(2,2-dimethyl-6-methylenecyclohexyl)-3-buten-2-one
- 4-(2,6-Trimethyl-2-cyclohexen-1-yl)-3-methyl-3-buten-2-one
- Isoraldeine
- Methyl ionone
- Alpha-cetone
- Methyl ionone gamma
- Acetone 99,5%
- α-Cetone
- α−Isomethyl ionone
- Iso-.alpha.-methyl ionone
- Gamma Methyl Ionone
- AC1NS9PL
