• Azelis
    • Azelis UK Life Sciences
      Chemical Distribution
      Azelis is a leading global distributor of speciality chemicals.
      Azelis is a leading global speciality chemicals distributor. We provide a diverse range of products and innovative services to more than 20,000 customers. Our in-depth local knowledge is supported by an international structure and value-added services including high levels of technical support and tailored solutions.
      Email:Tim Bailey
      Voice:+32 3 613 01 20
      Fax:+32 3 613 01 21
      United Kingdom+44 (0) 1992 82 55 55
      United Kingdom+44 (0) 1992 82 55 66
  • CG Herbals
    • CG Herbals
      Shaping Your Sensory Creations
      highest quality product and services at honest prices.
      At C.G Herbals we constantly strive to deliver quality product and services to the personal care Industry at affordable prices with particular focus on fulfilling all orders within in time. A visitor feels welcomed irrespective of its requirement and every time he shops with us it is a pleasant experience.
      Email:Nikunj Harlalka
      Email:Monika Mhatre
      Irone Alpha
      Irone Alpha has a rich, floral and natural character and constitutes an important element in orris and violet compositions as well as being useful when an exotic nuance is required. Irone Alpha is extremely diffusive and gives volume and tenacity to compositions.
  • Indukern F&F
  • Lluch Essence
    • Lluch Essence S.L.
      A family company dedicated to sales and distribution
      Flexibility, availability, price and quality.
      Flexibility, availability, price and quality make LLUCH ESSENCE S.L. one of Europe’s references when it comes to essential oils and aroma chemicals, and it is now well known all around the world.
      Voice:34 93 379 38 49
      Fax:34 93 370 65 04
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
      US Email:Technical Services
      US Email:Sales
      US Voice:(973) 740-2300
      US Fax:(973) 740-1839
      09-10000 IRONE alpha REFINED, Kosher
      09-09500 IRONAL, Kosher
  • PerfumersWorld
    • PerfumersWorld Ltd.
      feeeel... the smell!
      The one-stop resource for the creative perfumer.
      No minimum orders. Aroma chemicals, essential oils, isolates, pheremones, absolutes, resinoids, FleuressenceTM key bases, PWx FactorTM, solubilizers, kits, creation systems, workshops, training, distance learning, The PerfumersWorld Perfumer's Studio, The Perfumer’s Formulation Bulletin, perfumery software, bespoke creation, analysis, consultancy, project counselling, trouble-shooting, unperfumed product bases, bottles, smelling strips, scales, distillation, equipment and inspiration!
      PerfumersWorld Skype Skype
      Software:Perfumer's Workbook
      8II00243 Irone Alpha
  • Robertet
    • Robertet, Inc.
      Customer Satisfaction
      'Zero defect' quality for all of our services.
      Robertet Group has three businesses: natural raw materials, perfume compositions and food flavourings. Its success is global, reflected in its active presence across more than 50 countries in the world's main business regions.
      US Email:Customer service
      US Email:Arnaud Adrian
      US Voice:+1.201.405.1000
      Crops calendar
      IRONE Pure & Nat
  • Ernesto Ventós
  • Vigon International
    • Vigon International, Inc.
      The Yipppeee! Team
      Manufacturer and supplier of high quality flavor and fragrance ingredients.
      The growth and success of Vigon is due in large part to a unique corporate concept that Vigon has developed and established within the industry: Creative Partnerships. This partnership concept has been and continues to be the foundation and guiding principle for all of Vigon's activities.
      US Email:Sales
      US Voice:570-476-6300
      US Fax:570-476-1110
      Products List:View
      I-00234 Irone Alpha
      I-002345 Irone Alpha Refined
      I-001900 Irone Alpha Natural
  • Home
  • Suppliers
  • Organoleptics
      • Organoleptic Properties
        Odor Type :floral
        Odor Strength :medium ,
        recommend smelling in a 10.00 % solution or less
        Odor Description:
        at 10.00 % in dipropylene glycol. 
        orris floral berry violet woody powdery
        Luebke, William tgsc, (1986)
        Odor sample from :Firmenich Inc.
        Odor Description:
        Sweet, orris, woody, raspberry and powdery
        Mosciano, Gerard P&F 19, No. 5, 79, (1994)
        Taste Description:
        at 10.00 ppm.  
        Woody, fruity, raspberry, orris and berry with seedy nuances
        Mosciano, Gerard P&F 19, No. 5, 79, (1994)
        Substantivity :104 Hour(s)
  • Properties
      • Physical Properties
        Appearance :colorless to pale yellow clear liquid (est)
        Assay : 98.00 to 100.00 % sum of isomers
        Food Chemicals Codex Listed :No
        Specific Gravity :0.93200 to 0.93400 @  25.00 °C.
        Pounds per Gallon - (est). : 7.755 to  7.772
        Refractive Index :1.49900 to 1.50200 @  20.00 °C.
        Boiling Point : 110.00 to  112.00 °C. @ 3.00 mm Hg
        Boiling Point : 68.00 to  73.00 °C. @ 0.01 mm Hg
        Acid Value : 1.00 max. KOH/g
        Vapor Pressure :0.004000 mm/Hg @ 25.00 °C. (est)
        Flash Point :> 212.00 °F. TCC ( > 100.00 °C. )
        logP (o/w) : 4.354 (est)
  • Safety
      • Safety Information
        Most important hazard(s) : None - None found.
        Oral/Parenteral Toxicity : 
          oral-rat LD50  5000 mg/kg
        Mosciano, Gerard P&F 19, No. 5, 79, (1994)

        Dermal Toxicity : 
          skin-rabbit LD50 5000 mg/kg
        Mosciano, Gerard P&F 19, No. 5, 79, (1994)

        Inhalation Toxicity : 
          Not determined
  • Safety in Use
      • Safety in Use Information
        0.0055 mg/kg/day (IFRA, 2001)
        Category :flavor and fragrance agents
        Maximised Survey-derived Daily Intakes (MSDI-EU) :7.70 (μg/capita/day)
        Maximised Survey-derived Daily Intakes (MSDI-USA) :3.00 (μg/capita/day)
        Structure Class :II
        IFRA Critical Effect :Sensitization
        IFRA Other Specification :<= 2% Pseudomethylionone
        IFRA :View Standard
        maximum skin levels for fine fragrances :
          0.2900 %  and are based on the assumption that the fragrance mixture is used at 20% in a consumer product (IFRA Use Level Survey). (IFRA, 2001)
        Recommendation for alpha-irone fragrance usage levels up to :
          2.0000 % in the fragrance concentrate.
        use level in formulae for use in cosmetics :
          0.2200 %
        Dermal Systemic Exposure in Cosmetic Products :
        Recommendation for alpha-irone flavor usage levels up to :
          10.0000 ppm in the finished product.
  • Safety References
Fragrance Demo Formulas
(E)-4-(2,5,6,6-tetramethyl-1-cyclohex-2-enyl)but-3-en-2-one (Click)
CAS Number : 79-69-6
ECHA EC Number :201-219-6
Beilstein Number :1343498
MDL :MFCD00042628
FEMA Number :2597
CoE Number :145
XlogP3-AA :3.20 (est)
Molecular Weight :206.32854000
Formula :C14 H22 O
NMR Predictor :Predict
Category :flavor and fragrance agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information :
Google Scholar : Search Google Books : Search
Google Scholar : with word "volatile"Search Google Scholar : with word "flavor"Search
Google Scholar : with word "odor"SearchPerfumer and Flavorist : Search
Google Patents : Search US Patents : Search
EU Patents : Search
Pubchem Patents:Search
PubMed : SearchNCBI : Search
JECFA Food Flavoring :403  alpha-irone
Flavis Number :07.011 (Old)
EU SANCO Food Flavourings :07.011  4-(2,5,6,6-tetramethyl-2-cyclohexenyl)-3-buten-2-one

FEMA Number :2597  alpha-irone
Subpart F--Flavoring Agents and Related Substances
Sec. 172.515 Synthetic flavoring substances and adjuvants.
click on the picture(s) below to
interact with the 3D model
Picture of molecule
Synonyms :
cis-(2,6)-cis- (2(1),2(2))-alpha-irone
cis-2,6-cis-21,2 2-alpha-irone
irone alfa
irone alpha
irone alpha refined
4-(2,5,6,6-tetramethyl cyclohex-2-enyl) but-3-en-2-one
cis-4-(2,5,6,6-tetramethyl cyclohex-2-enyl) but-3-en-2-one
Soluble in :
 water, 110 mg/L @ 20 °C (exp)
Insoluble in :
Stability :
 alcoholic, good
 antiperspirant spray, poor
 bath foam
 non-discoloring in most media
 ph = 10 moderate
 ph = 2 poor
 powder detergent, moderate
 soap, good
 toiletry, good
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