When procuring chemicals like 4-(N-Ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate (CD-4), understanding its specifications is crucial for ensuring the desired performance in your applications. As a vital component in photographic chemical solutions and beyond, the quality of CD-4 directly impacts the final results.

The primary specification for CD-4 is its purity, often measured by High-Performance Liquid Chromatography (HPLC). Purity levels of 98.0% or higher are commonly sought after by users who require consistent and reliable outcomes. Beyond purity, the physical appearance is also a key indicator. CD-4 is typically described as a beige fine crystalline powder, a characteristic that should be consistent across batches.


Other important properties to consider include its melting point, which is around 155°C, and its solubility in water. These physical and chemical developer CD-4 properties help in formulating and processing the chemical effectively. When you are looking to buy CD-4, always ask suppliers for a Certificate of Analysis (CoA) that details these specifications. This document serves as verification of the product's quality and adherence to standards.


When sourcing from international markets, such as seeking CD-4 suppliers China, it's also beneficial to look for manufacturers that adhere to international quality management systems like ISO. This demonstrates a commitment to consistent production and quality control. For those involved in chemical synthesis for imaging or advanced photographic processes, ensuring these specifications are met is a fundamental step in guaranteeing the success of their work. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to meeting these stringent quality demands.