Name:3-Methylpentanoic Acid
Cas: 105-43-1
Purity: 99%
MOQ: 1KG
Structural Formula
Basic Info
3-Methylpentanoic Acid (CAS Number: 105-43-1), also widely known as 3-Methylvaleric Acid, is a critical branched-chain fatty acid extensively utilized in the flavor, fragrance, and fine chemical synthesis industries. Characterized by its strong, pungent, and distinctively fruity, herbaceous, and cheese-like aroma profile, this organic compound serves as a pivotal building block for creating complex flavor top notes and specialized chemical intermediates.
Synthesized through controlled organic catalytic routes, our high-purity 3-Methylpentanoic Acid exhibits superior physical and chemical stability. In food flavor formulations, it contributes essential aromatic nuances to dairy products, berry profiles, and savory meat flavorings even at low concentration thresholds. Beyond the olfactory and food seasoning sectors, it acts as a versatile intermediate in pharmaceutical synthesis and agrochemical active ingredient processing.
| Melting point | -41 °C |
| Boiling point | 196-198 °C (lit.) |
| density | 0.93 g/mL at 25 °C (lit.) |
| refractive index | n20/D 1.416(lit.) |
| FEMA | 3437 | 3-METHYLPENTANOIC ACID |
| Fp | 185 °F |
| storage temp. | Sealed in dry,Room Temperature |
| pka | pK1:4.766 (25°C) |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.930 |
| Odor | at 1.00 % in dipropylene glycol. animal sharp acidic cheesy green fruity sweaty |
| Odor Type | animal |
| biological source | synthetic |
| Water Solubility | insoluble |
Certifications & Compliance
To facilitate global trade and seamlessly integrate into strict food, cosmetic, and industrial chemical supply chains, our production lines and quality systems maintain stringent international compliance standards:
ISO 9001:2015: Certified Quality Management System covering distillation, purification, and final bottling procedures.
ISO 22000 / FSSC 22000: Food Safety Management System compliance governing flavor-grade chemical handling and packaging.
EU REACH Registered / Compliant: Full documentation and compliance frameworks established for bulk chemical exportation to European markets.
Kosher & Halal Certified: Suitable for integration into certified kosher and halal flavor compositions.
GHS Safety Compliance: Provided with full 16-section Safety Data Sheets (SDS), standardized hazardous transport labeling, and global regulation documentation.
Each batch of 3-Methylpentanoic Acid undergoes comprehensive chemical and organoleptic testing in our analytical testing center using standardized Gas Chromatography-Mass Spectrometry (GC-MS) and wet chemistry methods to guarantee strict purity and batch consistency.
Analytical Quality Control Matrix
| Test Parameter | Internal Specification Standard | Test Method / Analytical Equipment |
| Purity Assay (GC) | ≥ 98.0% | Gas Chromatography (FID) |
| Appearance | Clear, colorless to pale yellow liquid | Visual Inspection |
| Refractive Index (nD20) | 1.415 – 1.420 | Digital Automatic Refractometer |
| Density (20°C) | 0.922 – 0.928 g/cm³ | Oscillating U-tube Density Meter |
| Water Content (Karl Fischer) | ≤ 0.3% w/w | Coulometric Karl Fischer Titration |
| Acid Value | 475 – 485 mg KOH/g | Potentiometric Titration |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP-OES Analysis |
| Odor Profile Evaluation | Conforms to standard (Pungent, Cheese, Fruity) | Sensory Panel Comparison |
Note: Batch-specific Certificate of Analysis (COA), Gas Chromatography (GC) charts, and Safety Data Sheet (SDS) accompany every shipment.
A. Flavor & Fragrance Industry
Dairy & Cheese Flavorings: Crucial component for recreating authentic notes in cheese, butter, milk, and fermented dairy flavor bases.
Fruity & Savory Formulations: Utilized in microscopic dosing to impart ripe fruit nuances (such as strawberry and apple) as well as savory meat top notes.
Perfumery & Fragrance Oils: Serves as a top-note modifier in niche fine fragrances requiring green, diffusive, or natural earthy nuances.
B. Fine Chemical & Organic Synthesis
Chiral & Pharmaceutical Intermediates: Functions as an essential precursor for synthesizing active pharmaceutical ingredients (APIs), specialized esters, and chiral pharmaceutical building blocks.
Agrochemical Intermediate: Used in the preparation of specialized plant protection agents, pest management pheromone blends, and technical additives.
Welcome to Consult
If you are looking for high-quality 3-Methylpentanoic Acid, now is the best time! We not only provide you with very competitive prices, but also strictly guarantee the purity and stability of the products to the industry-leading level. At the same time, our comprehensive after-sales service will accompany you every step from procurement to use to protect your business.
Choose us, you will experience:
Excellent quality: products meet international standards, stability and purity are verified multiple times.
Professional service: quick response to needs, provide detailed technical support.
Long-term trust: we are committed to building lasting partnerships to help your business grow.
Related References
Pubchem-3-Methylpentanoic Acid
Manufacturer of 3-Methylpentanoic Acid
Zhishang Chemical is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional 3-Methylpentanoic Acid manufacturer, Zhi shang Chemical has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
Q1: What is the typical purity level of your 3-Methylpentanoic Acid, and can it be used in food flavors? A1: Our commercial material achieves a minimum purity assay of 98.0% by Gas Chromatography (GC). Flavor-grade batches strictly meet FCC (Food Chemicals Codex) criteria, making them fully suitable for use in food flavor formulations in accordance with regional regulatory usage limits.
Q2: How is the organoleptic profile evaluated during batch release? A2: In addition to GC-MS instrumental analysis, every batch undergoes olfactory sensory testing conducted by our trained QA panel. The material is compared directly against a certified reference sample to ensure consistent top notes without off-odors or extraneous impurities.
Q3: What are the packaging options and handling requirements for CAS 105-43-1? A3: Standard packaging options include 25 kg fluorinated HDPE drums, 200 kg steel drums, or custom ISO tanks upon request. Because organic acids can cause skin irritation and exhibit corrosive properties, containers must be handled in well-ventilated areas using standard PPE (gloves, safety goggles, and respiratory protection).
Q4: What is the recommended storage stability and shelf life? A4: The product should be stored in tightly sealed original containers in a cool, dry, and well-ventilated warehouse away from direct sunlight, open flames, and strong oxidizing agents. Under optimal storage conditions, the shelf life is 24 months from the manufacturing date.
Q5: Are technical documentation and samples available for evaluation? A5: Yes. We provide laboratory-scale evaluation samples alongside comprehensive technical documentation packages, including batch COAs, SDS, ISO certifications, and organoleptic specifications upon request through our sales portal.
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
