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2-methylbutyric acid

CAS Number
116-53-0
EC Number
204-145-2
Chemical Formula
C5H10O2
Molecular Weight
102.13 g/mol

Description

2-Methylbutyric acid (CAS 116-53-0 ), also known by its FEMA 2695 designation, is a short-chain branched organic acid used primarily as a flavoring agent and fragrance ingredient. It delivers a characteristic pungent, cheesy, and fruity odor profile that underpins its demand in both food and personal care formulations. In food and beverage manufacturing, it functions as a flavor compound. It contributes to dairy, fruit, and savory taste profiles in products such as cheese analogs, snack seasonings, and processed meat flavors. Fragrance formulators incorporate it into personal care products. These include soaps, shampoos, and fine fragrances where its sharp, fermented note adds depth to complex scent compositions. At controlled concentrations, it also acts as a pH modifier and mild preservative. In cosmetic formulations, its acidic buffering supports product stability. Flavor houses source it as a building block for synthesizing more complex ester-based aroma chemicals for various industries. The product is supplied as a colorless to pale yellow liquid. It is available in food-grade quality meeting FEMA and FCC standards, as well as technical grade for industrial and fragrance applications. Packaging typically ranges from small drums to bulk quantities depending on application volume. This ensures flexibility for both small-scale specialty labs and large-scale manufacturing facilities. Contact us for supply of 2-methylbutyric acid Request Quote

Other Names (Synonyms)

methylethylacetic acid | ethylmethylacetic acid | DL-2-methylbutyric acid | butane-2-carboxylic acid | alpha-methylbutyric acid | 2-methylbutanoic acid | 2-methybutyric acid | 2-ethylpropionic acid

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-70 °C
Boiling Point177 °C
Density0.9338 g/cm³ @ Temp: 21 °C
Flash Point165 °F
Appearanceclear colorless to pale yellowish liquid
ColorClear colorless to pale yellow
Odorat 10.00 % in propylene glycol. pungent acid roquefort cheese
FormLiquid
Water Solubility45 g/L (20 ºC)
Vapor Pressure0.5 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.405(lit.)
Log P1.8 at 25℃

Safety & Handling

Danger
GHS05· CorrosiveGHS07· Irritant

Hazard Statements

H290May be corrosive to metals
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage

Precautionary Statements

P234Keep only in original packaging.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P390Absorb spillage to prevent material damage.
P405Store locked up.
P406Store in a corrosion-resistant/… container with a resistant inner liner.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P364Take off contaminated clothing and wash it before reuse.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29156090
UN Number3265
ADR Class8
Packing GroupIII
Storage Class8A - Combustible corrosive hazardous materials
WGK (Germany)1