Methyl isobutyrate
CAS 547-63-7
EC 208-929-5
Formula C5H10O2
MW 102.13 g/mol
Flavors & Fragrances Food & NutritionPersonal Care & Cosmetics Flavoring & AcidulantSolvent & Carrier
Description
Methyl isobutyrate (CAS 547-63-7, FEMA 2694) is a short-chain ester produced by the esterification of isobutyric acid with methanol. It carries no E-code designation and is also referenced under the names methyl isobutanoate and NSC 126780. It is registered under REACH and assigned HS code 29156000.
In food and beverage formulation, methyl isobutyrate delivers apple and rum-type flavor notes at low use concentrations, functioning as a flavoring agent where its volatility drives top-note release. In personal care applications, it serves as a solvent and carrier, improving the spreadability and evaporation profile of fragrance compounds in rinse-off and leave-on products.
Methyl isobutyrate is available in FCC-grade for food applications and in technical grade for industrial use, supplied as a clear liquid in drums and IBC containers. It complies with REACH registration requirements. Prospective buyers should confirm grade specifications and current documentation with the supplier prior to ordering.
In food and beverage formulation, methyl isobutyrate delivers apple and rum-type flavor notes at low use concentrations, functioning as a flavoring agent where its volatility drives top-note release. In personal care applications, it serves as a solvent and carrier, improving the spreadability and evaporation profile of fragrance compounds in rinse-off and leave-on products.
Methyl isobutyrate is available in FCC-grade for food applications and in technical grade for industrial use, supplied as a clear liquid in drums and IBC containers. It complies with REACH registration requirements. Prospective buyers should confirm grade specifications and current documentation with the supplier prior to ordering.
Physical Properties
| Melting Point | -84.7 °C |
| Boiling Point | 91.9 °C @ Press: 750 Torr |
| Density | 0.883 g/cm³ @ Temp: 25 °C; Press: 750 Torr |
| Flash Point | 38 °F |
| Appearance | CLEAR COLOURLESS LIQUID |
| Color | Clear colorless |
| Odor | at 10.00 % in dipropylene glycol. fruity floral apple pineapple |
| Form | Liquid |
| Water Solubility | slightly soluble |
| Refractive Index | n 20/D 1.384(lit.) |
| Log P | 1.06 |
Safety & Handling (Learn More)
Danger GHS02
H
H225
P
P210P233P240P241P242P243P280P501P370+P378P403+P235P303+P361+P353
Trade & Regulatory
| HS Code | 29156000 |
| UN Number | 1237 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 3 |
Other Names
Methyl 2-MethylpropanoateMethyl isobutanoate(CH3)2CHC(O)OCH3METHYL DIMETHYLACETATEMethyl 2-methylpropionate
Related Products
Raw Materials
Derivatives
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