In the dynamic world of fine chemicals, certain compounds stand out due to their unique properties and wide-ranging applications. Among these is 3-Mercapto-2-Pentanone, identified by its Chemical Abstracts Service (CAS) registry number 67633-97-0. This compound is a colorless to pale yellow liquid, characterized by a singularly potent and complex aroma profile described as pungent, savory-meaty, and possessing tropical nuances. Its molecular formula is C5H10OS, and it has a molecular weight of 118.19 g/mol. The presence of the mercapto (-SH) group is key to its distinctive odor and reactivity, making it a valuable building block and additive in various industries.

One of the most remarkable features of 3-Mercapto-2-Pentanone is its ultra-low odor threshold. This means that even at incredibly minute concentrations, often measured in parts per billion (ppb), it can impart a significant sensory impact. This potency makes it highly cost-effective in formulations, as only trace amounts are required to achieve the desired effect. This characteristic is particularly beneficial in flavor and fragrance applications where subtle yet impactful notes are crucial.

The primary application area for 3-Mercapto-2-Pentanone is in the food flavoring industry. It is highly valued for its ability to enhance and create complex flavor profiles, particularly those with savory or meaty characteristics. It is widely used in the development of artificial meat flavors, snack seasonings, and sauces. Beyond savory applications, its tropical nuances make it useful in certain fruit formulations, such as those designed to mimic passionfruit or other exotic fruits. Its versatility allows it to be incorporated into a wide array of processed foods, dairy products, and beverages, adding depth and authenticity to the flavor profile.

In the fragrance industry, 3-Mercapto-2-Pentanone contributes to the creation of distinctive and often bold accords. While perhaps less common than in flavors, it can be utilized to add savory or exotic undertones to perfumes, colognes, and other scented products. Its potent nature requires careful handling and precise formulation to ensure it complements rather than overwhelms other fragrance components.

Beyond its sensory roles, 3-Mercapto-2-Pentanone also serves as a crucial intermediate in the synthesis of other chemicals. Its reactive mercapto group and ketone functionality make it a versatile building block in organic chemistry. It finds utility in the development of pharmaceuticals and agrochemicals, contributing to the creation of complex molecules with specific biological activities. The demand for high-purity intermediates like 3-Mercapto-2-Pentanone is essential for efficient and successful synthesis routes in these critical sectors.

Key technical specifications for 3-Mercapto-2-Pentanone underscore its quality. A typical purity specification is ≥95% via Gas Chromatography (GC), ensuring minimal impurities for demanding applications. It has a boiling point ranging from 175-177°C at 760 mmHg and a density of approximately 0.985 g/cm³ at 25°C. The refractive index is typically between 1.480 and 1.490 (nD²0). Its flash point, measured by closed cup method, is around 65°C, indicating it is a flammable liquid requiring appropriate safety precautions during handling and storage.

Proper storage conditions are critical for maintaining the quality and shelf life of 3-Mercapto-2-Pentanone due to its volatility and sensitivity. It should be stored under a nitrogen atmosphere at -20°C in amber glass containers with limited headspace. When stored unopened under these conditions, it typically has a shelf life of 12 months. It is soluble in ethanol and oils but only slightly soluble in water.

Sourcing high-quality 3-Mercapto-2-Pentanone is paramount for businesses in the flavor, fragrance, pharmaceutical, and agrochemical industries. Reliable supply chain partners are necessary to ensure consistent access to material meeting stringent purity standards. Companies seeking this versatile compound often look for an experienced manufacturer and supplier with proven quality control processes.

For businesses ready to buy or purchase 3-Mercapto-2-Pentanone (CAS 67633-97-0), obtaining accurate price information is the next step. Pricing typically depends on the quantity ordered, packaging requirements, and current market conditions. Engaging directly with a trusted supplier allows for detailed discussion regarding specific needs, technical specifications, and logistical arrangements. Whether requiring small quantities for research and development or bulk volumes for industrial production, securing a dependable source is essential for leveraging the unique properties of this potent chemical material effectively in diverse applications.