Isobutyl propionate
- CAS No.
- 540-42-1
- Chemical Name:
- Isobutyl propionate
- Synonyms
- 2-METHYLPROPYL PROPANOATE;ISOBUTYL PROPANOATE;FEMA 2212;2-METHYLPROPYL PROPIONATE;i-Butylpropionat;Isobutylpropionat;ISOBUTYL PROPIONATE;BUTYL ISO, PROPIONATE;IsobutylPropionate>iso-Butyl n-propionate
- CBNumber:
- CB5723025
- Molecular Formula:
- C7H14O2
- Molecular Weight:
- 130.18
- MDL Number:
- MFCD00009307
- MOL File:
- 540-42-1.mol
- MSDS File:
- SDS
| Melting point | −71 °C(lit.) |
|---|---|
| Boiling point | 66.5 °C |
| Density | 0.869 g/mL at 25 °C(lit.) |
| FEMA | 2212 | ISOBUTYL PROPIONATE |
| refractive index |
n |
| FLAVIS Number | 09.125 | Isobutyl propionate |
| Flash point | 80 °F |
| storage temp. | Flammables area |
| solubility | 1.7g/l |
| form | Liquid |
| color | Colorless |
| Odor | at 100.00 %. fruity green ether sweet tutti frutti banana |
| Odor Type | fruity |
| Odor Threshold | 0.02ppm |
| explosive limit | 1.1-7.5%(V) |
| biological source | synthetic |
| JECFA Number | 148 |
| Merck | 14,5150 |
| Henry's Law Constant | 1.5×10-2 mol/(m3Pa) at 25℃, Plyasunov et al. (2004) |
| Cosmetics Ingredients Functions | PERFUMING |
| InChI | 1S/C7H14O2/c1-4-7(8)9-5-6(2)3/h6H,4-5H2,1-3H3 |
| InChIKey | FZXRXKLUIMKDEL-UHFFFAOYSA-N |
| SMILES | CCC(=O)OCC(C)C |
| LogP | 2.26 |
| CAS DataBase Reference | 540-42-1(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | ISOBUTYL PROPIONATE |
| FDA 21 CFR | 172.515 |
| EWG's Food Scores | 1 |
| FDA UNII | 8Q382JSY9T |
| NIST Chemistry Reference | Propanoic acid, 2-methylpropyl ester(540-42-1) |
| EPA Substance Registry System | Propanoic acid, 2-methylpropyl ester (540-42-1) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS02 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H226 | |||||||||
| Precautionary statements | P501-P240-P210-P233-P243-P241-P242-P280-P370+P378-P303+P361+P353-P403+P235 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Risk Statements | 10 | |||||||||
| Safety Statements | 16 | |||||||||
| RIDADR | UN 2394 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | UF4930000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29159000 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Flam. Liq. 3 | |||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Isobutyl propionate price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W221201 | Isobutyl propionate ≥98%, FG | 540-42-1 | 1 each | $55.9 | 2026-04-30 | Buy |
| Sigma-Aldrich | W221201 | Isobutyl propionate ≥98%, FG | 540-42-1 | 1kg | $205 | 2026-04-30 | Buy |
| Sigma-Aldrich | W221201 | Isobutyl propionate ≥98%, FG | 540-42-1 | 4kg | $431 | 2026-04-30 | Buy |
| Sigma-Aldrich | 307580 | Isobutyl propionate 98% | 540-42-1 | 100ml | $37.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | W221201 | Isobutyl propionate ≥98%, FG | 540-42-1 | 1 unit | $54.6 | 2025-07-31 | Buy |
Isobutyl propionate Chemical Properties, Uses, Production
Chemical Properties
Isobutyl propionate is a clear colorless to pale yellow liquid that has an odor similar to the corresponding ethyl ester but more refined and fresher. It has a bitter flavor. It is highly soluble in ethanol and ether but insoluble in water. It can be found naturally occurring in grapes, apples, pears, rum, and other similar products. Isobutyl propionate is mainly used in the production of fruit flavors. This compound can prepared by direct esterification or by reacting propionyl chloride with isobutyl alcohol in the presence of Mg dust in ether solution.
Occurrence
Reported found in grapes, hop oil, apple, pear, rum, apricot, melon, Gruyere and Parmesan cheese, cider, mushroom, quince, Bourbon vanilla and spineless monkey orange
Uses
manufacture of fruit essences.
Preparation
By direct esterification or by reacting propionyl chloride with isobutyl alcohol in the presence of Mg dust in ether solution.
Definition
ChEBI: 2-Methylpropyl propanoate is a carboxylic ester.
Aroma threshold values
Aroma characteristics at 1.0%: fruity, sweet, rummy, pungent, bubble gum estry with a tropical nuance
Taste threshold values
Taste characteristics at 10 ppm: sweet, fruity, banana, tutti-frutti, with rummy nuances
General Description
A colorless liquid. Flash point of 86°F. Less dense than water. Vapors heavier than air. May be mildly toxic by ingestion, inhalation and skin absorption. Used to make plastics.
Air & Water Reactions
Highly flammable. Slightly soluble in water.
Reactivity Profile
Isobutyl propionate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
Health Hazard
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Safety Profile
Mldly toxic by ingestion. Flammable when exposed to heat or flame, can react vigorously with oxidizing materials. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS, PROPIONIC ACID, and ISOBUTYL ALCOHOL.
Isobutyl propionate Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 18918157536; | sales8178@energy-chemical.com | China | 45000 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| jiliang chemicals | 21-62165282 | bidingchem@163.com | China | 1395 | 60 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| Spectrum Chemical Manufacturing Corp. | 021-021-021-67601398-809-809-809 15221380277 | marketing_china@spectrumchemical.com | China | 9643 | 60 |
View Latest Price from Isobutyl propionate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-15 | Isobutyl propionate
540-42-1
|
$1.10 | 1g | 99.0% Min | 100 Tons | Shaanxi Didu New Materials Co. Ltd | |
 |
2019-07-06 | Isobutyl propionate
540-42-1
|
$1.00 | 1kg | 99% | 100KG | Career Henan Chemical Co |
-
- Isobutyl propionate
540-42-1
- $1.10
- 99.0% Min
- Shaanxi Didu New Materials Co. Ltd
-
- Isobutyl propionate
540-42-1
- $1.00
- 99%
- Career Henan Chemical Co
