For any B2B procurement professional or R&D scientist in the chemical industry, understanding the critical specifications of a product is the first step towards a successful purchase. When considering 1-(4-Chlorophenyl)-3-Methyl-5-Pyrazolone (CAS: 13024-90-3), a versatile intermediate widely used in dye production and organic synthesis, a few key parameters stand out that directly impact its performance and value.

Firstly, the Appearance is often the initial indicator of quality. This compound is typically described as a light yellow crystalline powder. Any significant deviation from this description—such as an unusual color, presence of foreign matter, or a different physical state—could suggest contamination or improper handling. Buyers should always refer to supplier specifications for the expected appearance and be wary of products that do not match.

Secondly, Purity is perhaps the most critical specification. For 1-(4-Chlorophenyl)-3-Methyl-5-Pyrazolone, a purity level of ≥98.0% is commonly sought after. Higher purity ensures that the compound will react predictably in synthesis processes, leading to higher yields and fewer by-products. This is particularly important when using it as a coupling component in dye manufacturing or as an intermediate in pharmaceutical synthesis, where even minor impurities can have significant consequences on the final product's quality, efficacy, or regulatory compliance. When you plan to buy this intermediate, always request a Certificate of Analysis (CoA) detailing the purity and testing methods.

Thirdly, Supplier Reliability is crucial. When seeking to buy this chemical intermediate, look for manufacturers and suppliers who demonstrate a commitment to quality control, transparent communication, and consistent supply. Companies based in China, such as Ningbo Hongda Group or Technichem Organics, are often recognized for their production capabilities. A reliable supplier will not only provide the specified quality but also offer competitive pricing, timely delivery, and responsive customer service. Understanding your supplier’s manufacturing process and quality assurance measures can significantly de-risk your procurement strategy.

By focusing on these key specifications—appearance, purity, and supplier reliability—procurement managers and scientists can make informed decisions when purchasing 1-(4-Chlorophenyl)-3-Methyl-5-Pyrazolone, ensuring their projects in dye formulation or organic synthesis proceed smoothly and successfully.