Methyl butyrate
CAS 623-42-7
EC 210-792-1
Formula C5H10O2
MW 102.13 g/mol
Flavors & Fragrances Personal Care & CosmeticsFood & NutritionLubricants & Metalworking Flavoring & AcidulantLubricationHumectant & Moisturizing
Description
Methyl butyrate (CAS 623-42-7, EC 210-792-1), also known as methyl butanoate and listed under FEMA 2693 and NSC 9380, is a short-chain ester produced by the esterification of butyric acid with methanol. It carries no assigned E-code and is classified under HS code 29156000.
In food and beverage formulations, methyl butyrate delivers characteristic apple and pineapple top notes at concentrations typically below 50 ppm, functioning as a direct flavorant. In personal care products, it acts as an emollient by integrating into lipid layers to reduce transepidermal water loss. It also serves as a lubricating agent in light metalworking fluids due to its low viscosity and film-forming behaviour.
Methyl butyrate is available in food-grade (FCC-compliant) and technical grades, supplied in drums and IBC containers. It is registered under REACH and complies with EU flavouring regulations. Buyers should confirm purity specifications against FCC or internal formulation standards prior to procurement.
In food and beverage formulations, methyl butyrate delivers characteristic apple and pineapple top notes at concentrations typically below 50 ppm, functioning as a direct flavorant. In personal care products, it acts as an emollient by integrating into lipid layers to reduce transepidermal water loss. It also serves as a lubricating agent in light metalworking fluids due to its low viscosity and film-forming behaviour.
Methyl butyrate is available in food-grade (FCC-compliant) and technical grades, supplied in drums and IBC containers. It is registered under REACH and complies with EU flavouring regulations. Buyers should confirm purity specifications against FCC or internal formulation standards prior to procurement.
Physical Properties
| Melting Point | -85.8 °C |
| Boiling Point | 102.8 °C @ Press: 760 Torr |
| Density | 0.8984 g/cm³ @ Temp: 20 °C |
| Flash Point | 53 °F |
| Appearance | colourless liquid |
| Color | Clear colorless to very slightly yellow |
| Odor | at 10.00 % in dipropylene glycol. fruity apple sweet banana pineapple |
| Form | Liquid |
| Water Solubility | Slightly soluble in water. |
| Vapor Pressure | 40 mm Hg ( 30 °C) |
| Refractive Index | n 20/D 1.385(lit.) |
| Log P | 1.24 |
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 |
| WGK (Germany) | 2 |
Other Names
methyl butanoatemethyl n-butyratemethyl n-butanoate
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