2-Methylbutyric acid
CAS 116-53-0
EC 204-145-2
Formula C5H10O2
MW 102.13 g/mol
Organic Acids Food & NutritionPersonal Care & Cosmetics Flavoring & AcidulantPreservation & BiocidepH Regulation & BufferingCatalysis
Description
2-Methylbutyric acid (CAS 116-53-0) is a short-chain branched organic acid, also known as alpha-methylbutyric acid or active valeric acid, and referenced under FEMA 2695. It carries no assigned E-code in the EU. It occurs naturally in several fruits and fermented products.
In food and beverage formulation, it functions as a flavoring agent, contributing characteristic fruity and cheesy top notes at low concentrations through direct sensory interaction. In personal care applications, it acts as a pH buffer and skin-conditioning agent, adjusting formulation acidity to support ingredient stability and dermal compatibility.
The material is supplied as a liquid and is available in food-grade quality conforming to FCC specifications. It falls under REACH registration obligations within the EU (EC 204-145-2) and is classified under HS code 29156090. Procurement teams should confirm grade suitability against application-specific regulatory requirements prior to ordering.
In food and beverage formulation, it functions as a flavoring agent, contributing characteristic fruity and cheesy top notes at low concentrations through direct sensory interaction. In personal care applications, it acts as a pH buffer and skin-conditioning agent, adjusting formulation acidity to support ingredient stability and dermal compatibility.
The material is supplied as a liquid and is available in food-grade quality conforming to FCC specifications. It falls under REACH registration obligations within the EU (EC 204-145-2) and is classified under HS code 29156090. Procurement teams should confirm grade suitability against application-specific regulatory requirements prior to ordering.
Physical Properties
| Melting Point | -70 °C |
| Boiling Point | 177 °C |
| Density | 0.9338 g/cm³ @ Temp: 21 °C |
| Flash Point | 165 °F |
| Appearance | clear colorless to pale yellowish liquid |
| Color | Clear colorless to pale yellow |
| Odor | at 10.00 % in propylene glycol. pungent acid roquefort cheese |
| Form | Liquid |
| Water Solubility | 45 g/L (20 ºC) |
| Vapor Pressure | 0.5 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.405(lit.) |
| Log P | 1.8 at 25℃ |
Safety & Handling (Learn More)
Danger GHS05 GHS07
H
H290H302H312H314H318
P
P234P260P264P270P280P316P317P321P330P363P390P405P406P501P264+P265P301+P317P302+P352P304+P340P362+P364P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 29156090 |
| UN Number | 3265 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 1 |
Other Names
2-methybutyric acid2-methylbutanoic acid2-ethylpropionic acidCARBOXYLIC ACID C5Methylbutyric acidActive Valeric Acidα-Methylbutyric acid
Related Products
Raw Materials
Derivatives
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