Articles:
| US Patents: | 3,937,228 - Aromatic compositions |
| US Patents: | Flavoring phenol or phenol derivative containing food or feed with cycloaliphatic derivatives |
6-methyl-3,5-heptadien-2-one
Notes:
Flavouring ingredient. Isol. from lavender oil (Lavendula officinalis hybrid)
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Beijing Lys Chemicals Co, LTD. From Grams to Tons Fine chemical high-tech company which contains R&D, production, and sales. BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services. Email: Mr. Jia Email: Mr. Guo Voice: 86-10-68418738 Fax: 86-10-68418739 Mr. Guo 86-10-68483445 Mr. Guo 86-10-68418739 News Product(s): 10220 6-Methyl-3,5-heptadien-2-one
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BOC Sciences Best of Chemicals Supplier Quality supplier of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds. BOC Sciences provides a wide range of services to support the pharmaceutical industry through all stages of drug discovery including Custom Synthesis of those chemicals that are not in stock, Isotope Labeling Service, Chiral Synthesis and Resolution, Bioconjugation, PEGylation services, analytical services. BOC Sciences is a brand of BOCSCI Inc. We leverage our wide spectrum of business in the fields of development, manufacturing, marketing, and distribution to help you make best-informed decisions tailored to your evolving needs for premium chemicals. Our complete suite of CRO services spans the entire molecule development pipeline including contract research for target identification, building blocks, compound synthesis, biochemical and cellular analysis, preclinical animal tests, and clinical studies. Email: Marketing US Email: Marketing Email: Sales US Email: Sales Voice: 1-631-485-4226 Fax: 1-631-614-7828 US Voice: 1-631-485-4226 US Fax: 1-631-614-7828 Europe 44-203-286-1088 Facebook Twitter Linkedin Blog Get the App! Product(s): 1604-28-0 6-Methyl-3,5-heptadien-2-one
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FRUTAROM USA INC, Flavor & Specialty Ingredients Your preferred partner for flavour and fragrance success. Our broad and diverse product portfolio is designed to provide and cater for every flavor and taste profile required by our customer base and incorporates historic, and iconic, market leading products. Email: Info US Email: Info- USA Email: Sales Voice: +44 (0) 1429 863 222 Products List: View Product(s): 3313160001 METHYL HEPTADIENONE KOSHER
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M&U International LLC Steady supply & demand Meeting customers increasing demands at home as well as abroad. M&U dedicates itself to the development and production of new products as well as continuously promoting those new products. We’ve maintained a steady supply&demand relationship with a large number of manufacturers at home and abroad. We’ve developed an extensive network and because of our relationships with these manufacturers, we’re able to provide a stable supply of great quality materials. We’re located in China’s largest communications hub, Shanghai and in the U.S. near one of the largest sea ports on the East Coast. The strategic locations of our facilities ensure convenient, prompt and secure delivery of our products to our customers. Email: Sales US Email: Sales Voice: +86-21-32515501 60762991 60762992 Fax: +86-21-32515502 64204960 US Voice: 908-359-9000 US Fax: 908-359-9002 News Product(s): A0332 6-METHYL-3,5-HEPTADIEN-2-ONE, Kosher
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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 Product(s): 13-48600 METHYL HEPTADIENONE 13-48601 METHYL HEPTADIENONE SYNTHETIC 1% IN ETHYL ALCOHOL
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Synerzine, Inc. Innovation. Customization. Aroma Ingredients. Synerzine is a leading supplier of flavor and fragrance ingredients. Synerzine expresses what we have grown to embody as an organization - the synergy and connection between raw ingredients, science, technology, and the final product. Our experienced team is passionate about bringing our customers high-quality innovative ingredients that they can trust. Building upon our 44 year history, the Synerzine team provides customers around the globe with convenient access to over 1200 high-quality aroma ingredients. We actively engage with customers to add a wide array of new products and services on a regular basis. Our aim is to delight every customer with our exceptional services, large product selection, customization and the highest quality and safety standards. We provide our customers with true value designed to help them bring their products to market faster. US Email: Customer Service US Email: Sales US Voice: (404) 524-6744 US Fax: (404) 577-1651 Inquiry Products List: View Product(s): W1306 6-Methyl-3,5-heptadien-2-one
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Tianjin Danjun International Trade Co., LTD. Quality Products We know the Chinese chemical market well. Tianjin danjun international trade co., LTD. is an organic chemicals trading company approved by the relevant state authorities to register. We have about 300 kinds of products (natural aroma chemicals, synthetic aroma chemicals and pharmaceutical intermediates). Most of the products are used in flavor and fragrance industry. We know the Chinese chemical market well and we have close relationship with many of the main manufacturers, and to provide our customers with quality goods together with comprehensive service. Email: Info Email: Sales Voice: +86-15822601686 Products List: View Product(s): A-009 6-Methyl-3,5-heptadien-2-one
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Vigon International Passion for Simplicity 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 Facebook Twitter Linkedin Newsletter Blog Products List: View Product(s): 501031 Methyl Heptadienone
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WholeChem, LLC Connecting Innovators To the Building Blocks Of the Universe Custom manufacturer and distributor of specialty ingredients. We make global local. SQF-Certified Supplier We owe our success to our integrity, our dedication to the industry, and our commitment to our clients. We invite your inquiries regarding our current product list and any other products you may be having trouble sourcing. Email: Info Email: Orders Voice: +1 (262) 995.8668 Certification Our Services Products List: View Product(s): 6-Methyl-3,5-heptadien-2-one
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| Flavor Demo Formulas | ||
| CAS Number: | 1604-28-0 |  3D/inchi
|
| ECHA EINECS - REACH Pre-Reg: | 216-507-7 | |
| FDA UNII: | P7CMP2E76C | |
| Nikkaji Web: | J195.217J | |
| MDL: | MFCD00043647 | |
| CoE Number: | 11143 | |
| XlogP3-AA: | 2.00 (est) | |
| Molecular Weight: | 124.18284000 | |
| Formula: | C8 H12 O | |
| NMR Predictor: | Predict (works with chrome, Edge or firefox) | |
| Also(can) Contains: | (Z)-6-methyl-3,5-heptadien-2-one | |
| (E)-6-methyl-3,5-heptadien-2-one | ||
| EFSA/JECFA Comments: | Mixture of E/Z stereoisomers: 60-90 % (E) (EFFA, 2012c). | |
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" | Search |
| Perfumer and Flavorist: | Search |
| Google Patents: | Search |
| US Patents: | Search |
| EU Patents: | Search |
| Pubchem Patents: | Search |
| PubMed: | Search |
| NCBI: | Search |
| JECFA Food Flavoring: | 1134 6-methyl-3,5-heptadien-2-one |
| DG SANTE Food Flavourings: | 07.099 6-methylhepta-3,5-dien-2-one |
| FEMA Number: | 3363 6-methyl-3,5-heptadien-2-one |
| FDA: | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF): | 1604-28-0 ; 6-METHYL-3,5-HEPTADIEN-2-ONE |
| FDA Regulation: | |
| FDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION Subpart F--Flavoring Agents and Related Substances Sec. 172.515 Synthetic flavoring substances and adjuvants. | |
Physical Properties:
| Appearance: | pale yellow clear liquid (est) |
| Assay: | 96.00 to 100.00 % sum of isomers |
| Food Chemicals Codex Listed: | No |
| Specific Gravity: | 0.89500 to 0.89900 @ 25.00 °C. |
| Pounds per Gallon - (est).: | 7.447 to 7.481 |
| Refractive Index: | 1.52800 to 1.53700 @ 20.00 °C. |
| Boiling Point: | 190.00 °C. @ 760.00 mm Hg |
| Boiling Point: | 83.50 °C. @ 9.00 mm Hg |
| Vapor Pressure: | 0.464000 mmHg @ 25.00 °C. (est) |
| Flash Point: | 177.00 °F. TCC ( 80.56 °C. ) |
| logP (o/w): | 1.679 (est) |
| Soluble in: | |
| alcohol | |
| water, very slightly | |
| water, 1454 mg/L @ 25 °C (est) | |
| Insoluble in: | |
| water | |
Organoleptic Properties:
| Odor Type: spicy | |
| Odor Strength: | medium , recommend smelling in a 1.00 % solution or less |
| Substantivity: | 48 hour(s) at 100.00 % |
| cinnamon coconut spicy woody sweet weedy | |
| Odor Description: at 1.00 % in dipropylene glycol. | cinnamon coconut spice woody sweet weedy Luebke, William tgsc, (1988) |
| sweet green spicy cooling herbal | |
| Odor Description: | Sweet, green, spice-like with a cooling herbaceous nuance Mosciano, Gerard P&F 17, No. 3, 57, (1992) |
| Flavor Type: green | |
| green sweet brown herbal | |
| Taste Description: at 30.00 ppm. | Green, sweet, with a brown herbal aftertaste Mosciano, Gerard P&F 17, No. 3, 57, (1992) |
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| CosIng: | cosmetic data |
| Cosmetic Uses: |
perfuming agents |
Suppliers:
| Beijing Lys Chemicals |
| 6-Methyl-3,5-heptadien-2-one |
| BOC Sciences |
| For experimental / research use only. |
| 6-Methyl-3,5-heptadien-2-one |
| DeLong Chemicals America |
| 6-Methyl-3,5-heptadien-2-one |
| Frinton Laboratories |
| For experimental / research use only. |
| 6-Methyl-3,5-heptadien-2-one |
| Frutarom |
| METHYL HEPTADIENONE
KOSHER Flavor: Sweet, Green, Spicy, Woody, Herbal |
| IFF |
| METHYL HEPTADIENONE
KOSHER Flavor: Sweet, Green, Spicy, Woody, Herbal |
| M&U International |
| 6-METHYL-3,5-HEPTADIEN-2-ONE, Kosher |
| Penta International |
| METHYL HEPTADIENONE SYNTHETIC 1% IN ETHYL ALCOHOL |
| Penta International |
| METHYL HEPTADIENONE |
| Santa Cruz Biotechnology |
| For experimental / research use only. |
| 6-Methyl-3,5-heptadien-2-one 97% |
| Sigma-Aldrich: Aldrich |
| For experimental / research use only. |
| 6-Methyl-3,5-heptadien-2-one ≥96% |
| Synerzine |
| 6-Methyl-3,5-heptadien-2-one |
| Tianjin Danjun International |
| 6-Methyl-3,5-heptadien-2-one |
| Vigon International |
| Methyl Heptadienone
Odor: SPICY-FLORAL AND WOODY |
| WholeChem |
| 6-Methyl-3,5-heptadien-2-one |
Safety Information:
| Preferred SDS: View | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
| Not determined | |
| Dermal Toxicity: | |
| Not determined | |
| Inhalation Toxicity: | |
| Not determined | |
Safety in Use Information:
| Category: | flavor and fragrance agents | ||
| RIFM Fragrance Material Safety Assessment: Search | |||
| IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice | |||
| IFRA Critical Effect: | Dermal sensitization | ||
| IFRA: | View Standard | ||
| View IFRA Standards Library for complete information. | |||
| Please review Amendment 49 IFRA documentation for complete information. | |||
| IFRA RESTRICTION LIMITS IN THE FINISHED PRODUCT (%): | |||
| Category 1: Products applied to the lips | |||
| 0.0085 % | |||
| Category 2: Products applied to the axillae | |||
| 0.0025 % | |||
| Category 3: Products applied to the face/body using fingertips | |||
| 0.051 % | |||
| Category 4: Products related to fine fragrance | |||
| 0.047 % | |||
| Category 5: Products applied to the face and body using the hands (palms), primarily leave-on | |||
| Category 5A: Body lotion products applied to the body using the hands (palms), primarily leave-on | |||
| 0.012 % | |||
| Category 5B: Face moisturizer products applied to the face using the hands (palms), primarily leave-on | |||
| 0.012 % | |||
| Category 5C: Hand cream products applied to the hands using the hands (palms), primarily leave-on | |||
| 0.012 % | |||
| Category 5D: Baby Creams, baby Oils and baby talc | |||
| 0.012 % | |||
| Category 6: Products with oral and lip exposure | |||
| 0.028 % | |||
| Category 7: Products applied to the hair with some hand contact | |||
| Category 7A: Rinse-off products applied to the hair with some hand contact | |||
| 0.096 % | |||
| Category 7B: Leave-on products applied to the hair with some hand contact | |||
| 0.096 % | |||
| Category 8: Products with significant anogenital exposure | |||
| 0.005 % | |||
| Category 9: Products with body and hand exposure, primarily rinse off | |||
| 0.092 % | |||
| Category 10: Household care products with mostly hand contact | |||
| Category 10A: Household care excluding aerosol products (excluding aerosol/spray products) | |||
| 0.33 % | |||
| Category 10B: Household aerosol/spray products | |||
| 0.33 % | |||
| Category 11: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate | |||
| Category 11A: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure | |||
| 0.18 % | |||
| Category 11B: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure | |||
| 0.18 % | |||
| Category 12: Products not intended for direct skin contact, minimal or insignificant transfer to skin | |||
| No Restriction | |||
| Notes: | |||
| IFRA FLAVOR REQUIREMENTS: | |||
Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 13.00 (μg/capita/day) | ||
| Maximised Survey-derived Daily Intakes (MSDI-USA): | 5.00 (μg/capita/day) | ||
| Threshold of Concern: | 540 (μg/person/day) | ||
| Structure Class: | II | ||
| Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS). | |||
| The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library | |||
| publication number: 6 | |||
| Click here to view publication 6 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | - | 0.30000 | |
| beverages(nonalcoholic): | - | 0.05000 | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | - | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | 0.10000 | |
| fruit ices: | - | 0.10000 | |
| gelatins / puddings: | - | 0.05000 | |
| granulated sugar: | - | - | |
| gravies: | - | - | |
| hard candy: | - | 0.15000 | |
| imitation dairy: | - | - | |
| instant coffee / tea: | - | - | |
| jams / jellies: | - | - | |
| meat products: | - | - | |
| milk products: | - | 0.05000 | |
| nut products: | - | - | |
| other grains: | - | - | |
| poultry: | - | - | |
| processed fruits: | - | - | |
| processed vegetables: | - | - | |
| reconstituted vegetables: | - | - | |
| seasonings / flavors: | - | - | |
| snack foods: | - | - | |
| soft candy: | - | - | |
| soups: | - | - | |
| sugar substitutes: | - | - | |
| sweet sauces: | - | - | |
| Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i). | |||
| Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm. | |||
| average usage mg/kg | maximum usage mg/kg | ||
| Dairy products, excluding products of category 02.0 (01.0): | 0.05000 | 0.05000 | |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0): | - | - | |
| Edible ices, including sherbet and sorbet (03.0): | 0.50000 | 2.00000 | |
| Processed fruit (04.1): | - | - | |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): | - | - | |
| Confectionery (05.0): | 1.10000 | 9.00000 | |
| Chewing gum (05.0): | - | - | |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): | 1.00000 | 4.50000 | |
| Bakery wares (07.0): | 1.00000 | 4.50000 | |
| Meat and meat products, including poultry and game (08.0): | - | - | |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): | - | - | |
| Eggs and egg products (10.0): | - | - | |
| Sweeteners, including honey (11.0): | - | - | |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0): | 0.50000 | 2.00000 | |
| Foodstuffs intended for particular nutritional uses (13.0): | 1.00000 | 4.50000 | |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1): | 0.05000 | 0.05000 | |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): | - | - | |
| Ready-to-eat savouries (15.0): | - | - | |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): | - | - | |
Safety References:
| European Food Safety Athority(EFSA): | Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies... |
| European Food Safety Authority (EFSA) reference(s): | |
| List of apha, beta-Unsaturated Aldehydes and Ketones representative of FGE.19 substances for Genotoxicity Testing [1] - Statement of the Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 206 (FGE.206): Consideration of genotoxicity data on representatives for 12 alpha,beta-unsaturated ketones and precursors from chemical subgroup 1.2.3 of FGE.19 by EFSA View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 63, Revision 1 (FGE.63Rev1): Consideration of aliphatic secondary alcohols, ketones and related esters evaluated by JECFA (59th and 69th meetings) structurally related to saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids evaluated by EFSA in FGE.07Rev4 (2012) View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 63, Revision 2 (FGE.63Rev2): Consideration of aliphatic secondary alcohols, ketones and related esters evaluated by JECFA (59th and 69th meetings) structurally related to saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids evaluated by EFSA in FGE.07Rev4 View page or View pdf | |
| Safety and efficacy of saturated and unsaturated aliphatic secondary alcohols, ketones and esters with esters containing secondary alcohols belonging to chemical group 5 when used as flavourings for all animal species View page or View pdf | |
| Scientific Opinion on Flavouring Group Evaluation 63, Revision 3 (FGE.63Rev3): aliphatic secondary alcohols, ketones and related esters evaluated by JECFA (59th and 69th meetings) structurally related to saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids evaluated by EFSA in FGE.07Rev4 View page or View pdf | |
| EPI System: | View |
| AIDS Citations: | Search |
| Cancer Citations: | Search |
| Toxicology Citations: | Search |
| EPA Substance Registry Services (TSCA): | 1604-28-0 |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 5370101 |
| National Institute of Allergy and Infectious Diseases: | Data |
| SCCNFP: | opinion |
| WGK Germany: | 2 |
| 6-methylhepta-3,5-dien-2-one | |
| Chemidplus: | 0001604280 |
References:
| 6-methylhepta-3,5-dien-2-one | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 1604-28-0 |
| Pubchem (cid): | 5370101 |
| Pubchem (sid): | 135020864 |
| Pherobase: | View |
Other Information:
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| FDA Substances Added to Food (formerly EAFUS): | View |
| HMDB (The Human Metabolome Database): | HMDB31582 |
| FooDB: | FDB008208 |
| Typical G.C. | |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
Potential Blenders and core components note
Potential Uses:
| cinnamon | FR | |
| coconut | FR | |
| melon | FR | |
| spice | FR | |
| tea herbal tea | FL |
Occurrence (nature, food, other): note
| filbert roasted filbert Search Trop Picture | |
| grape Search Trop Picture | |
| lavandin Search PMC Picture | |
| lavender oil spike france @ trace% Data GC Search Trop Picture | |
| lemon balm Search Trop Picture | |
| lemon verbena oil turkey @ 0.08% Data GC Search Trop Picture | |
| licorice Search Trop Picture | |
| pea green pea Search PMC Picture | |
| rice bran Search Trop Picture | |
| tea green tea Search Trop Picture | |
| tomato Search Trop Picture | |
| wormwood leaf oil america @ 0.71-0.94% Data GC Search Trop Picture |
Synonyms:
| 3,5- | heptadien-2-one, 6-methyl- |
| 2- | methyl hepta-2,4-dien-6-one |
| 6- | methyl hepta-3,5-dien-2-one |
| 6- | methyl-3,5-heptadien-2-one |
| 6- | methyl-3,5-heptadiene-2-one |
| 2- | methylhepta-2,4-dien-6-one |
| 6- | methylhepta-3,5-dien-2-one |