In the intricate world of organic synthesis, specific chemical intermediates act as indispensable building blocks, enabling the creation of complex molecules with targeted functionalities. Among these, 2,3-Dimethylphenyl Isothiocyanate (CAS: 1539-20-4) stands out for its versatility and reactivity, making it a compound of significant interest to R&D scientists and product formulators. Understanding its properties and how to procure it effectively from reliable manufacturers is key to leveraging its full potential.

Chemical Profile: 2,3-Dimethylphenyl Isothiocyanate

The chemical name, 2,3-Dimethylphenyl isothiocyanate, and its CAS number, 1539-20-4, uniquely identify this compound. It presents as a light yellow liquid, with a high purity level typically exceeding 99.0%. Key physical properties include a boiling point of 128°C and a flash point of 125.8°C, with a molecular formula of C9H9NS and a molecular weight of 163.23900. These characteristics are vital for chemists when planning synthesis routes and ensuring safe handling. Its primary role is as an intermediate in organic synthesis, serving as a reactive moiety for various chemical transformations.

Applications in Chemical Synthesis

The utility of 2,3-Dimethylphenyl Isothiocyanate stems from the reactive isothiocyanate group (-NCS). This functional group readily participates in reactions such as:

  • Nucleophilic Addition: It reacts with amines to form thioureas, with alcohols to form thiocarbamates, and with thiols to form dithiocarbamates. These reactions are fundamental in building larger, more complex molecular structures.
  • Cyclization Reactions: The isothiocyanate moiety can be incorporated into various heterocyclic compounds, which are prevalent in pharmaceuticals and agrochemicals.

As an intermediate, it is invaluable in the synthesis of:

  • Pharmaceuticals: It can serve as a precursor for active pharmaceutical ingredients (APIs) or key intermediates in their synthesis, contributing to the development of new therapeutic agents.
  • Agrochemicals: Its incorporation into molecules can lead to the development of novel pesticides, herbicides, or plant growth regulators, offering enhanced crop protection solutions.
  • Specialty Chemicals: It finds applications in the synthesis of dyes, polymers, and other fine chemicals requiring specific chemical properties derived from the isothiocyanate group.

Sourcing and Procurement: Finding a Reliable Supplier

For researchers and procurement professionals seeking to buy 2,3-Dimethylphenyl Isothiocyanate, identifying a dependable manufacturer and supplier is critical. Companies like NINGBO INNO PHARMCHEM CO.,LTD., a prominent Chinese supplier, offer high-purity grades of this intermediate, often in bulk quantities (e.g., 200 kg drums). Engaging with such suppliers ensures not only product quality but also competitive pricing and consistent availability, which are essential for uninterrupted research and production schedules. When considering a supplier, it is advisable to request detailed product specifications, COAs, and MSDS to verify compliance with your project requirements.

The strategic importance of intermediates like 2,3-Dimethylphenyl Isothiocyanate in driving innovation in the chemical sciences cannot be overstated. By understanding its chemical nature and actively seeking out quality suppliers, R&D teams can effectively harness its potential to synthesize novel compounds and advance scientific discovery.