| Preferred name | 2-ethyl butyric acid |
| Trivial Name | 2-Ethylbutanoic acid |
| Short Description | 2-ethylbutyric acid |
| Formula | C6 H12 O2 |
| CAS Number | 88-09-5 |
| FEMA Number | 2429 |
| Flavis Number | 8.045 |
| ECHA Number | 201-796-4 |
| FDA UNII | IDY8B990KE |
| Nikkaji Number | J3.213A |
| Beilstein Number | 1098634 |
| MDL | MFCD00002670 |
| COE Number | 2001 |
| Bio Activity Summary | External link |
| NMR Predictor | External link |
| JECFA Food Flavoring | 257 2-ethylbutyric acid |
| FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm | 88-09-5 ; 2-ETHYLBUTYRIC ACID |
| 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 |
| (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 |
| CHEMBL: | View |
| HMDB (The Human Metabolome Database): | HMDB31221 |
| FooDB: | FDB003245 |
| Export Tariff Code: | 2915.90.1800 |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Material listed in food chemical codex | Yes |
| Molecular weight | 116.16004180908 |
| Specific gravity | @ 20 °C |
| Pounds per Gallon | 7.689 to 7.714 |
| Refractive Index | 1.412 to 1.414 @ 20 °C |
| Melting Point | -15 to -13°C @ 760 mm Hg |
| Boiling Point | 99 to 101°C @ 18 mm Hg |
| Vapor Pressure | 0.188 mmHg @ 25 °C |
| Flash Point TCC Value | 87.78 °C TCC |
| logP (o/w) | 1.68 |
| Solubility | |
| alcohol | Yes |
| water, 18000 mg/L @ 20 °C (exp) | Yes |
| Odor Type: Acidic | |
| acidic, fruity, whiskey, dry, berry, dairy, tropical | |
| Odor strength | medium , recommend smelling in a 10.00 % solution or less |
| Substantivity | 124 hour(s) at 100.00 % |
| Luebke, William tgsc, (1995) | At 10.00 % in propylene glycol. acidic fruity whiskey dry berry |
| Mosciano, Gerard P&F 15, No. 3, 51, (1990) | Acidic, fruity and dairy with a tropical nuance |
| Flavor Type: Acidic | |
| acidic, fruity, tropical, creamy | |
| Mosciano, Gerard P&F 15, No. 3, 51, (1990) | At 35.00 ppm. Acidic, fruity, tropical with a creamy aftertaste |
| (data available) |
| Applications | |
| Odor purposes | Apple , Cream , Strawberry |
| Flavoring purposes | Cheese , Dairy , Nut , Tropical |
| Cosmetic purposes | Perfuming agents |
| Preferred SDS: View | |
| European information : | |
| Most important hazard(s): | |
| C - Corrosive. | |
| R 21 - Harmful in contact with skin. R 34 - Causes burns. S 02 - Keep out of the reach of children. S 24/25 - Avoid contact with skin and eyes. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
| oral-rat LD50 2200 mg/kg AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. | |
| Dermal Toxicity: | |
| skin-rabbit LD50 520 ul/kg AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954. | |
| 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 | |||
| Structure Class: | I | ||
| 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: | - | 20.00000 | |
| beverages(nonalcoholic): | - | 5.00000 | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | - | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | 20.00000 | |
| fruit ices: | - | 20.00000 | |
| gelatins / puddings: | - | - | |
| granulated sugar: | - | - | |
| gravies: | - | - | |
| hard candy: | 20.00000 | 35.00000 | |
| 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) related to Flavouring Group Evaluation 6 (FGE.06): Straight-and branched-chain aliphatic unsatured primary alcohols, aldehydes, carboxylic acids, and esters from chemical groups 1 and 4 View page or View pdf |
| Flavouring Group Evaluation 6, Revision 1 (FGE.06Rev1) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) View page or View pdf |
| EPI System: View |
| AIDS Citations:Search |
| Cancer Citations:Search |
| Toxicology Citations:Search |
| EPA Substance Registry Services (TSCA):88-09-5 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :6915 |
| National Institute of Allergy and Infectious Diseases:Data |
| WISER:UN 2810 |
| WGK Germany:1 |
| 2-ethylbutanoic acid |
| Chemidplus:0000088095 |
| RTECS:ET1400000 for cas# 88-09-5 |