2-Methyl Butyric Acid | Aroma/Fragrance Compound

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General Information

  • Chemical Name: 2-Methyl Butyric Acid
  • Chemical Formula: C₅H₁₀O₂
  • CAS Number: 116-53-0
  • EC Number: 204-141-0
  • Molecular Weight: 102.13 g/mol
  • IUPAC Name: 2-Methylbutanoic Acid

Physical Properties

  • Appearance: Clear, colorless to pale yellow liquid
  • Odor: Strong, sour, and rancid odor
  • Density: 0.937 g/cm³ at 20°C
  • Boiling Point: 178–182°C
  • Melting Point: -5°C
  • Flash Point: 72°C (closed cup)
  • Refractive Index (nD20): 1.415–1.418
  • Vapor Pressure: 0.68 mmHg at 25°C
  • Solubility:
    • Slightly soluble in water
    • Soluble in ethanol, ether, and most organic solvents

Chemical Properties

  • Purity: ≥99% (by GC analysis)
  • Water Content: ≤0.3% (by Karl Fischer Titration)
  • Acidity (as CH₃CH₂COOH): ≥95%
  • Impurities: ≤0.5% (total)

Description

2-Methyl Butyric Acid is a high-purity, industrial-grade carboxylic acid with a distinctive pungent odor. Known for its versatility, it is widely used in the flavor and fragrance industry, as a chemical intermediate, and in various industrial applications. Its unique chemical properties make it an essential ingredient in multiple formulations.

Applications of 2-Methyl Butyric Acid


Flavor and Fragrance Industry

  • Flavoring Agent:
    • Used to create fruity, buttery, and cheesy flavors for food and beverage products.
    • Commonly employed in dairy flavor formulations, including butter, cheese, and yogurt.
  • Fragrance Ingredient:
    • Key component in perfumes and fragrances for its fruity and creamy aroma.
    • Used in creating esters for natural and artificial scents.

Chemical Intermediate

  • Ester Synthesis:
    • Used in the production of esters like methyl or ethyl 2-methyl butyrate, which are key ingredients in perfumes and food additives.
  • Specialty Chemicals:
    • Acts as a precursor in the synthesis of lubricants, additives, and other specialty compounds.

Pharmaceutical Applications

  • Active Ingredient Production:
    • Used as an intermediate in the synthesis of pharmaceutical compounds.
  • Excipient and Additive:
    • Sometimes included in formulations for its solvent properties.

Industrial Applications

  • Lubricants and Plasticizers:
    • Used in the formulation of lubricants and as a plasticizer in polymer processing.
  • pH Adjustment:
    • Functions as a pH regulator in industrial and chemical processes.

Agricultural Industry

  • Pesticide and Herbicide Formulations:
    • Used as a component in certain agrochemical products.

Research and Development

  • Chemical Studies:
    • Widely used in academic and industrial research for studying carboxylic acids and their derivatives.
  • Biochemical Pathways:
    • Investigated for its role in metabolic pathways in biological systems.

Cosmetics and Personal Care

  • Fragrance Additive:
    • Included in cosmetics and personal care products for its odor-enhancing properties.

 

Storage Requirements:

  • Temperature Control:
    • Store in a cool, dry, and well-ventilated area, ideally between 15°C and 25°C.
    • Protect from freezing and excessive heat.
  • Container Specifications:
    • Use tightly sealed, corrosion-resistant containers such as stainless steel or HDPE drums.
    • Ensure containers are properly labeled and compatible with acidic substances.
  • Segregation:
    • Keep away from strong oxidizing agents, bases, and reactive metals.
    • Do not store near food, beverages, or feed.
  • Spill Containment:
    • Use secondary containment to prevent accidental release into the environment.

Handling Precautions:

  • Personal Protective Equipment (PPE):
    • Gloves: Acid-resistant gloves (e.g., nitrile or neoprene).
    • Eye Protection: Safety goggles or a full-face shield.
    • Clothing: Long-sleeved clothing or a chemical-resistant apron.
    • Respiratory Protection: If ventilation is inadequate, use a respirator approved for organic vapors.
  • Safe Handling Practices:
    • Avoid direct contact with skin, eyes, and clothing.
    • Do not inhale vapors or mist; ensure adequate ventilation or use local exhaust systems.
    • Transfer materials in a well-ventilated area using appropriate tools to minimize spills.
  • Hygiene Measures:
    • Wash hands thoroughly with soap and water after handling.
    • Remove and wash contaminated clothing before reuse.
  • Emergency Preparedness:
    • Keep an emergency eyewash station and safety shower nearby.
    • Have neutralizing agents (e.g., sodium bicarbonate) readily available for small spills.

Disposal Considerations:

Dispose of 2-Methyl Butyric Acid and its containers in accordance with local, regional, and international regulations. Avoid release into waterways or the environment.

 

Additional information

Size

30mL (1 FL Oz), 100mL (3.3 Fl Oz), 250mL (8 Fl Oz)