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For procurement professionals and R&D scientists in the pharmaceutical and chemical industries, understanding the precise specifications of a compound is paramount before making a purchase. 2,4-Diamino-6-chloropyrimidine (CAS 156-83-2) is no exception. As a key intermediate, its quality directly impacts the success of downstream synthesis and final product efficacy. This article delves into the critical specifications to consider when sourcing this compound.
The most fundamental specification for any chemical intermediate is its purity. For 2,4-Diamino-6-chloropyrimidine, a minimum purity of 99.0% is commonly sought, especially for pharmaceutical applications. This high level of purity ensures minimal impurities that could interfere with reactions or lead to undesirable byproducts in the final API or compound. Suppliers often provide purity data via Gas Chromatography (GC) or High-Performance Liquid Chromatography (HPLC). Always confirm the assay method used by the manufacturer or supplier.
The appearance of 2,4-Diamino-6-chloropyrimidine is typically described as a white or off-white crystalline powder. This visual characteristic is a basic indicator of quality. Significant deviations in color or form might suggest degradation or contamination, warranting further investigation or rejection of the batch. When you buy 2,4-Diamino-6-chloropyrimidine, consistent appearance across different batches from the same supplier is also a good sign of standardized production.
Other important specifications include the loss on drying, which indicates the residual moisture content, typically specified as ≤0.50%. Melting point is another characteristic parameter, usually falling within the range of 198.0-202.0 °C. These physical properties are crucial for process control and ensuring the compound behaves as expected during synthesis.
When considering the application of 2,4-Diamino-6-chloropyrimidine, it's essential to confirm its suitability. Primarily used as an intermediate for Minoxidil, it also serves in other organically synthesized compounds. If your requirement extends beyond Minoxidil synthesis, it's advisable to discuss potential applications with the chemical supplier. They can provide insights into the compound's reactivity and suitability for your specific project.
For bulk purchases, understanding packaging and storage conditions is also vital. Typically, 2,4-Diamino-6-chloropyrimidine is supplied in 25kg fiber drums or as per buyer requirements. Proper storage, often described as ventilated, low-temperature, and dry conditions, away from oxidants and food additives, is necessary to maintain its quality and extend its shelf life. By carefully reviewing these specifications, buyers can confidently source high-quality 2,4-Diamino-6-chloropyrimidine and ensure the success of their manufacturing and research endeavors.
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