3-Methylvaleric Acid, identified by CAS 105-43-1, is a branched-chain saturated carboxylic acid and volatile liquid organic compound characterized by a pungent, cheese-like odor profile and specific chiral potential. This alkyl carboxylic acid functions as a critical chemical intermediate and flavoring agent, facilitating the synthesis of specialized esters, liquid crystal polymers, and pharmaceutical derivatives within fine chemical manufacturing. In industrial organic synthesis, 3-methylpentanoic acid is utilized as a building block for formulating complex fragrances and as an additive in tobacco or food processing applications where precise volatility and acidic structure are required. Its branched structure offers unique solubility and reactivity compared to linear fatty acids. We provide this material with competitive factory pricing to support specialized synthesis projects, offering customized specifications to verify purity and isomer ratios. Comprehensive quality assurance is maintained through the provision of MSDS, TDS, COA with every shipment, ensuring regulatory compliance and safety in bulk supply operations.
3‑Methylvaleric Acid CAS 105‑43‑1
- CAS: 105-43-1
- Synonyms: 3-Methylvaleric Acid, 3-Methylpentanoic Acid, β-Methylvaleric Acid, Isovaleric Acid Homolog
- Molecular Formula: C6H12O2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Technical Data Sheet (TDS)
| Property | Specification |
| Appearance | Clear, colorless to pale yellow liquid |
| Purity (GC) | ≥ 99.0% |
| Refractive Index (20°C) | 1.415 – 1.418 |
| Specific Gravity (25°C) | 0.920 – 0.930 g/cm³ |
| Boiling Point | 196°C – 198°C |
| Flash Point | 93°C (Closed Cup) |
| Acid Value | 475 – 485 mg KOH/g |
| Solubility | Soluble in alcohol, ether, and most organic solvents; slightly soluble in water |
Targeted Industrial Applications
3-Methylvaleric Acid is an essential building block in specialty chemistry:
- Flavors & Fragrances: It is a vital ingredient in the formulation of tobacco flavors, berry notes, and cheese-like aromas. It provides a characteristic pungent, sour, and herbaceous odor that adds depth to synthetic perfumes and food-grade essences.+1
- Pharmaceutical Intermediates: Used as a precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those requiring branched-chain aliphatic structures.
- Agrochemicals: Serves as a versatile intermediate for the production of specialized herbicides and plant growth regulators.
- Biochemical Research: Utilized in metabolic studies and as a reagent in laboratory-scale organic synthesis.
Quality Assurance & Testing
We provide comprehensive analytical support to ensure the material meets the stringent requirements of the fragrance and pharma sectors:
- Gas Chromatography (GC): Every batch is analyzed via GC to ensure purity levels exceed 99% and to monitor the profile of related isomers.
- Organoleptic Evaluation: For fragrance-grade orders, our lab conducts sensory testing to ensure the odor profile matches the standard reference sample.
- Moisture & Acid Value: Strict control of water content and acidity to ensure the stability of the product during downstream esterification or synthesis.
- Traceability: Full batch documentation is provided, including COA and MSDS, ensuring compliance with international trade regulations.
Storage & Safety Handling
Storage Conditions
3-Methylvaleric Acid is a combustible liquid. It should be stored in a cool, well-ventilated area away from heat, sparks, and open flames. Keep containers tightly closed. Store separately from oxidizing agents and strong bases to prevent exothermic reactions.
Safety & PPE Recommendations
- Hand Protection: Wear chemically resistant gloves (Butyl rubber or Viton are recommended).
- Eye Protection: Use chemical splash goggles or a full-face shield.
- Skin Protection: Wear protective clothing to prevent skin contact; this material can be corrosive to skin and eyes.
- Respiratory Protection: Use an organic vapor respirator (OV) if ventilation is inadequate or if misting occurs.
FAQ - Technical & Supply Chain
-
Q:
How is the chemical identity of CAS 105-43-1 verified to distinguish it from other hexanoic acid isomers?
A: Identity is confirmed through Gas Chromatography (GC) and NMR spectroscopy, which isolate the specific branching pattern at the C3 position, distinguishing it from 2-methylvaleric acid or straight-chain caproic acid. -
Q:
In what capacity is this chemical utilized in the industrial flavor and fragrance sector?
A: It is typically applied as a raw material for esterification to produce fruity or savory flavor compounds, or used directly in minute concentrations to impart specific acidic notes in tobacco and industrial fragrance formulations.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
