For procurement managers and chemical engineers in various industries, understanding the precise specifications of chemical raw materials is fundamental to successful operations. 4,5-Diamino-1-(2-Hydroxyethyl)Pyrazole Sulfate (CAS 155601-30-2) is one such intermediate whose utility is directly tied to its quality attributes. Whether used in the creation of vibrant hair dyes or complex pharmaceutical compounds, adhering to detailed specifications ensures optimal performance and consistency.

The appearance of this compound is typically described as a white to light pink crystalline powder. This visual cue is often the first indicator of material quality. However, the true measure of its worth lies in its analytical specifications. A key parameter for any chemical intermediate is its purity, often determined by High-Performance Liquid Chromatography (HPLC). For 4,5-Diamino-1-(2-Hydroxyethyl)Pyrazole Sulfate, a purity of ≥99.0% is a standard for high-grade material, ensuring that the majority of the substance is the desired compound, minimizing inert or reactive impurities.

Beyond the primary assay, other critical specifications include moisture content and ash content. Moisture, usually measured as 'Loss on Drying', should be kept to a minimum, typically ≤1.0%. Excess moisture can affect the compound's stability, reactivity, and accurate weighing for formulations. Similarly, ash content, representing inorganic residue after ignition, is also monitored, with limits often set at ≤1.0%. Low ash content indicates a cleaner product.

Furthermore, trace metal content, such as iron (Fe), can be critical, especially in sensitive applications like pharmaceuticals or certain high-purity chemical syntheses. Specifications for iron content are often in the parts per million (ppm) range, with a typical limit of ≤50 ppm for this intermediate. Adherence to these tight controls is a hallmark of a quality manufacturer.

When considering purchasing this chemical, understanding these specifications is essential. It allows buyers to compare offerings from different suppliers and ensure they are obtaining material suitable for their intended application. For those looking to buy, engaging with a supplier that transparently provides these details, such as a comprehensive Certificate of Analysis, is a sign of a reliable partner. Manufacturers in China are increasingly focusing on meeting these global standards.

The packaging of 4,5-Diamino-1-(2-Hydroxyethyl)Pyrazole Sulfate is also important, commonly supplied in 25 kg drums or tailored to customer requirements, ensuring product integrity during transport and storage. Proper storage in a cool, ventilated place is recommended to maintain its quality.

In summary, the technical specifications of 4,5-Diamino-1-(2-Hydroxyethyl)Pyrazole Sulfate are vital for its successful application. By scrutinizing purity, moisture, ash, and metal content, industrial users can make informed purchasing decisions from dependable manufacturers.

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