| Preferred name | isoamyl butyrate |
| Trivial Name | Isoamyl butyrate |
| Short Description | 3-methylbutyl butyrate |
| Formula | C9 H18 O2 |
| CAS Number | 106-27-4 |
| FEMA Number | 2060 |
| ECHA Number | 203-380-8 |
| FDA UNII | 505AFM77VU |
| Nikkaji Number | J3.243C |
| Beilstein Number | 1702557 |
| MDL | MFCD00044888 |
| COE Number | 282 |
| xLogP3-AA | 2.60 (est) |
| Bio Activity Summary | External link |
| NMR Predictor | External link |
| JECFA Food Flavoring | 45 isoamyl butyrate |
| FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm | 106-27-4 ; ISOAMYL BUTYRATE |
| Synonyms |
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| Google Scholar | Start search |
| Google Books | Start search |
| Google Patents | Start search |
| Perfumer & Flavorists | Start search |
| EU Patents | Start search |
| PubMeb | Start search |
| NCBI | Start search |
| 3-methylbutyl butanoate | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 106-27-4 |
| Pubchem (cid): | 7795 |
| Pubchem (sid): | 134971629 |
| Pherobase: | View |
| (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 |
| CHEBI: | View |
| CHEMBL: | View |
| HMDB (The Human Metabolome Database): | HMDB40221 |
| FooDB: | FDB019935 |
| Export Tariff Code: | 2915.39.9000 |
| Typical G.C. | |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Material listed in food chemical codex | Yes |
| Molecular weight | 158.24085998535 |
| Specific gravity | @ 25 °C |
| Pounds per Gallon | 7.156 to 7.223 |
| Specific gravity | @ 20 °C |
| Pounds per Gallon | 7.173 to 7.239 |
| Refractive Index | 1.409 to 1.413 @ 20 °C |
| Acid Value | 0.1 max KOH/g |
| Vapor Pressure | 0.95 mmHg @ 20 °C |
| Vapor Density | 5.5 |
| Flash Point TCC Value | 57.22 °C TCC |
| logP (o/w) | 3.25 |
| Shelf life | 24 months (or longer if stored properly.) |
| Storage notes | Store in cool, dry place in tightly sealed containers, protected from heat and light. |
| Solubility | |
| alcohol | Yes |
| fixed oils | Yes |
| kerosene | Yes |
| paraffin oil | Yes |
| water, 118 mg/L @ 25 °C (exp) | Yes |
| water | No |
| glycerin | No |
| propylene glycol | No |
| Stability | |
| alcoholic lotion | Unspecified |
| antiperspirant | Unspecified |
| deo stick | Unspecified |
| fabric softener | Unspecified |
| hard surface cleaner | Unspecified |
| shampoo | Unspecified |
| soap | Unspecified |
| Odor Type: Fruity | |
| fruity, green, apricot, pear, banana, sweet, estery, tropical, apple, melon, tutti frutti | |
| Odor strength | medium |
| Substantivity | < 2 hour(s) at 100.00 % |
| Luebke, William tgsc, (1983) | At 100.00 %. fruity green apricot pear banana |
| Mosciano, Gerard P&F 24, No. 2, 49, (1999) | At 2.00 %. Fruity, sweet estry, green, tropical, apple and melon-like with tutti frutti notes |
| Flavor Type: Waxy | |
| waxy, green, apple, fruity, sweet, estery, melon, berry | |
| Mosciano, Gerard P&F 24, No. 2, 49, (1999) | At 5.00 ppm. Waxy, green apple, fruity, sweet estry, melon and berry notes |
| Useful in: dairy, fruity red, fruity yellow, fruity tropical, fruity others. | Estery, fruity, sweet |
| General comment | Fruity banana sweet fatty green |
| (data available) |
| Applications | |
| Odor purposes | Acacia , Apple , Apple green apple , Apricot , Banana , Blackberry , Bluebell , Bubble gum , Butter , Butterscotch , Cherry , Cherry black cherry , Coconut , Cranberry , Cream , Currant , Date , Fruit juicy fruit , Ginger , Gooseberry , Grape , Herbal , Hibiscus , Honey , Hop , Huckleberry , Lemon , Lime , Melon , Orange , Orris , Passion fruit , Peach , Pear , Pineapple , Plum , Raspberry , Saffron , Strawberry , Tangerine , Valerian , Woodruff |
| Flavoring purposes | Arrack , Brandy , Chocolate cacao , Grenadine , Tea , Tomato , Tropical , Valerian |
| Cosmetic purposes | Perfuming agents |
| Preferred SDS: View | |
| European information : | |
| Most important hazard(s): | |
| Xi - Irritant | |
| R 36/38 - Irritating to skin and eyes. S 02 - Keep out of the reach of children. S 36/37/39 - Wear suitable clothing, gloves and eye/face protection. | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| Flammable liquids (Category 3), H226 Skin irritation (Category 2), H315 Eye irritation (Category 2A), H319 Specific target organ toxicity - single exposure (Category 3), Respiratory system, H335 | |
| GHS Label elements, including precautionary statements | |
| Pictogram | ![]() ![]() |
| Signal word | Warning |
| Hazard statement(s) | |
| H226 - Flammable liquid and vapour H315 - Causes skin irritation H319 - Causes serious eye irritation H335 - May cause respiratory irritation | |
| Precautionary statement(s) | |
| P210 - Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 - Keep container tightly closed. P240 - Ground/bond container and receiving equipment. P241 - Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 - Use only non-sparking tools. P243 - Take precautionary measures against static discharge. P261 - Avoid breathing dust/fume/gas/mist/vapours/spray. P264 - Wash skin thouroughly after handling. P271 - Use only outdoors or in a well-ventilated area. P280 - Wear protective gloves/protective clothing/eye protection/face protection. P303 + P361 + P353 - IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P304 + P340 - IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312 - Call a POISON CENTER or doctor/physician if you feel unwell. P332 + P313 - IF SKIN irritation occurs: Get medical advice/attention. P337 + P313 - IF eye irritation persists: Get medical advice/attention. P362 - Take off contaminated clothing and wash before reuse. P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction. P403 + P233 - Store in a well-ventilated place. Keep container tightly closed. P403 + P235 - Store in a well-ventilated place. Keep cool. P405 - Store locked up. P501 - Dispose of contents/ container to an approved waste disposal plant. | |
| Human Experience: | |
| 3 % solution: no irritation or sensitization. | |
| Oral/Parenteral Toxicity: | |
| oral-rat LD50 > 5000 mg/kg Food and Cosmetics Toxicology. Vol. 17, Pg. 823, 1979. | |
| Dermal Toxicity: | |
| skin-rabbit LD50 > 5000 mg/kg Food and Cosmetics Toxicology. Vol. 17, Pg. 823, 1979. | |
| Inhalation Toxicity: | |
| Not determined | |
| 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 | |||
| Recommendation for isoamyl butyrate usage levels up to: | |||
| 8.0000 % in the fragrance concentrate. | |||
| 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: 3 | |||
| Click here to view publication 3 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | - | 51.00000 | |
| beverages(nonalcoholic): | - | 13.00000 | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | 570.00000 | |
| condiments / relishes: | - | - | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | 34.00000 | |
| fruit ices: | - | 34.00000 | |
| gelatins / puddings: | - | 60.00000 | |
| granulated sugar: | - | - | |
| gravies: | - | - | |
| hard candy: | - | 79.00000 | |
| imitation dairy: | - | - | |
| instant coffee / tea: | - | - | |
| jams / jellies: | - | - | |
| meat products: | - | - | |
| milk products: | - | - | |
| nut products: | - | - | |
| other grains: | - | - | |
| poultry: | - | - | |
| processed fruits: | - | - | |
| processed vegetables: | - | - | |
| reconstituted vegetables: | - | - | |
| seasonings / flavors: | - | - | |
| snack foods: | - | - | |
| soft candy: | - | - | |
| soups: | - | - | |
| sugar substitutes: | - | - | |
| sweet sauces: | - | - | |
| European Food Safety Authority (EFSA) reference(s): |
| Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) on a request from the Commission related to Flavouring Group Evaluation 5: Esters of 23 branched- and straight-chain aliphatic saturated primary alcohols and of one secondary alcohol, and 24 branched- and straight-chain unsaturated carboxylic acids from chemical groups 1, 2, and 5 View page or View pdf |
| Flavouring Group Evaluation 5, Revision 1 (FGE.05Rev1):Esters of branched- and straight-chain aliphatic saturated primary alcohols and of one secondary alcohol, and branched- and straight-chain unsaturated carboxylic acids from chemical groups 1, 2, and 5 (Commission Regulation (EC) No 1565/2000 of 18 July 2000) [1] - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) View page or View pdf |
| Flavouring Group Evaluation 5, Revision 2 (FGE.05Rev2): Branched- and straight-chain unsaturated carboxylic acids and esters of these with aliphatic saturated alcohols from chemical groups 1, 2, 3 and 5 View page or View pdf |
| Safety of 31 flavouring compounds belonging to different chemical groups when used as feed additives for all animal species View page or View pdf |
| EPI System: View |
| Chemical Carcinogenesis Research Information System:Search |
| AIDS Citations:Search |
| Cancer Citations:Search |
| Toxicology Citations:Search |
| EPA Substance Registry Services (TSCA):106-27-4 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :7795 |
| National Institute of Allergy and Infectious Diseases:Data |
| WISER:UN 2620 |
| WGK Germany:1 |
| 3-methylbutyl butanoate |
| Chemidplus:0000106274 |
| RTECS:ET5034000 for cas# 106-27-4 |