In the intricate world of chemical synthesis, understanding the precise properties of intermediates is key to achieving successful outcomes. 4-Amino-2,6-dimethoxypyrimidine (CAS: 3289-50-7) is a compound that holds significant value, particularly in the pharmaceutical sector, primarily as an intermediate for Sulphadimethoxine. This article aims to provide a comprehensive overview of its chemical and physical characteristics, helping researchers and procurement specialists make informed decisions when they look to buy this important compound.

Key Chemical and Physical Attributes

The compound is characterized by its molecular formula C6H9N3O2 and a molecular weight of approximately 155.15 g/mol. Visually, it typically presents as a white crystal. These characteristics are fundamental for identification and initial quality assessment. The melting point, generally cited between 149-152 °C, is a critical parameter for purity assessment and process control during synthesis. Its density, around 1.2 g/cm³, and a refractive index of 1.547 provide further physical data points relevant to handling and formulation.

Furthermore, its boiling point of approximately 340.1 °C at 760 mmHg indicates its thermal stability under standard atmospheric conditions, although proper storage, as recommended by manufacturers (e.g., in a cool, ventilated warehouse below 37 °C), is essential to maintain its integrity. The flash point of 159.5 °C suggests a moderate flammability risk, necessitating standard safety precautions during handling and processing.

Specifications and Purity Standards

For pharmaceutical applications, the purity of chemical intermediates is paramount. 4-Amino-2,6-dimethoxypyrimidine is typically supplied with an assay of ≥95%. This high level of purity is supported by stringent controls on impurities, such as a residue on ignition limit of ≤0.2% and a water content of ≤0.5%. These specifications are critical for manufacturers to ensure that their synthesis processes are efficient and that the resulting Sulphadimethoxine meets the rigorous quality standards required for veterinary or human pharmaceuticals. When you purchase this chemical, always refer to the Certificate of Analysis (CoA) provided by the supplier.

Applications and Procurement Insights

The primary application of 4-Amino-2,6-dimethoxypyrimidine is its role as an intermediate in the synthesis of Sulphadimethoxine. This makes it a sought-after product for pharmaceutical manufacturers specializing in antibacterial agents. When considering where to buy, focusing on suppliers with a proven track record, such as established manufacturers in China, is advisable. These suppliers can offer competitive pricing for bulk quantities and ensure consistent quality. Understanding the HS Code (2933990099) also aids in navigating international trade and logistics. For those involved in research and development, specialized chemical suppliers can often provide smaller quantities for experimental work.

By thoroughly understanding the chemical and physical properties of 4-Amino-2,6-dimethoxypyrimidine, industries can optimize its use in synthesis, leading to more efficient production of vital pharmaceuticals. Engaging with knowledgeable suppliers ensures access to reliable, high-quality material for all your manufacturing and research needs.