ChemicalBook > CAS DataBase List > ALPHA-ISO-METHYLIONONE
ALPHA-ISO-METHYLIONONE
- Product Name
- ALPHA-ISO-METHYLIONONE
- CAS No.
- 127-51-5
- Chemical Name
- ALPHA-ISO-METHYLIONONE
- Synonyms
- METHYL IONONE GAMMA;3-METHYL-4-(2,6,6-TRIMETHYL-2-CYCLOHEXEN-1-YL)-3-BUTEN-2-ONE;Isonaline 70;α-Cetone;Isonaline;ISORALDEINE;α-Isomethylionone;3-METHYL-4-(2,6,6-TRIMETHYLCYCLOHEX-2-ENYL)BUT-3-EN-2-ONE;4-(2,6,6-TRIMETHYL-2-CYCLOHEXEN-1-YL)-3-METHYL-3-BUTEN-2-ONE;NSC 66432
- CBNumber
- CB5183650
- Molecular Formula
- C14H22O
- Formula Weight
- 206.32
- MOL File
- 127-51-5.mol
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ALPHA-ISO-METHYLIONONE Property
- Boiling point:
- 121-122℃ (9 Torr)
- Density
- 0.93 g/mL at 20 °C(lit.)
- vapor pressure
- 0.22Pa at 20℃
- FEMA
- 2714 | ALPHA-ISO-METHYLIONONE
- refractive index
- 1.50188 (589.3 nm 20℃)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
- form
- liquid
- color
- Light orange to Yellow to Green
- Odor
- at 10.00 % in dipropylene glycol. woody violet floral
- Odor Type
- floral
- Water Solubility
- 27.953mg/L at 25℃
- JECFA Number
- 404
- Stability:
- Light Sensitive
- LogP
- 4.288 at 25℃
- EPA Substance Registry System
- 3-Buten-2-one, 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)- (127-51-5)
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Safety
- Hazard Codes
- Xi
- Risk Statements
- 43
- Safety Statements
- 24/25-36/37
- RIDADR
- UN1230 - class 3 - PG 2 - Methanol, solution
- WGK Germany
- 2
- HS Code
- 2914.23.0000
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H411Toxic to aquatic life with long lasting effects
- Precautionary statements
-
P273Avoid release to the environment.
P391Collect spillage. Hazardous to the aquatic environment
P501Dispose of contents/container to..…
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 93192
- Product name
- α-Cetone
- Purity
- odorant used in allergy studies
- Packaging
- 10ml
- Price
- $46.3
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- CRM78707
- Product name
- 3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
- Purity
- certified reference material, <I>Trace</I><B>CERT</B><SUP>®</SUP>, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
- Packaging
- 50 mg
- Price
- $173
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- 93192
- Product name
- α-Cetone
- Purity
- odorant used in allergy studies
- Packaging
- 50mL
- Price
- $176
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- 16797
- Product name
- α-Cetone
- Purity
- analytical standard
- Packaging
- 1ml
- Price
- $81.2
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- W271410
- Product name
- α?Isomethyl ionone
- Purity
- ≥95%, stabilized, FG
- Packaging
- SAMPLE-K
- Price
- $52.3
- Updated
- 2022/05/15
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ALPHA-ISO-METHYLIONONE Chemical Properties,Usage,Production
Description
α-Isomethylionone has a fine violet and orris-like odor. This substance may be synthesized by condensation of citral with methyl ethyl ketone controlling the ratio between the n- and iso-forms; the methyl pseudo-ionone obtained is then subjected to ring closure, using strong alkali and high temperature (thus favoring the formation of the normal α- and β-methylionones) or with quaternary ammonium base (thus favoring the formation of wo-forms); See also monographs of α- and β-ionone and methyl α-, β-, and γ-ionones.
Chemical Properties
α-Isomethylionone has a fine violet and orris-like odor.
Preparation
By condensation of citral with methyl ethyl ketone controlling the ratio between the n- and iso-forms; the methyl pseudoionone obtained is then subjected to ring closure, using strong alkali and high temperature (thus favoring the formation of iso-forms); See also monographs of α-, β-, and γ-ionones.
Definition
ChEBI: 3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one is a sesquiterpenoid.
Flammability and Explosibility
Not classified
Contact allergens
As a fragrance allergen, a-isomethylionone has to be mentioned by name in cosmetics within the EU.
ALPHA-ISO-METHYLIONONE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from ALPHA-ISO-METHYLIONONE manufacturers
Wuhan Fortuna Chemical Co.,Ltd
- Product
- alpha-iso-Methylionone 127-51-5
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 2000KGS
- Release date
- 2025-09-12
WUHAN FORTUNA CHEMICAL CO., LTD
- Product
- alpha-iso-Methylionone 127-51-5
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000kg
- Release date
- 2025-07-22
Hebei Zhuanglai Chemical Trading Co.,Ltd
- Product
- Alpha-ISO-Methylionone 127-51-5
- Price
- US $70.00-25.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20ton
- Release date
- 2024-06-05
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