4-(N-Ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate, or CD-4, is a chemical compound valued for its specific functionalities in both the photographic industry and scientific research. Its unique properties allow for precise color development and visualization, making it a versatile agent in various advanced applications.

In the realm of photography, CD-4 is indispensable for its role as a high-temperature rapid developer. It is integral to processes such as the Kodacolor II, Flexicolor, and C-41 color negative film developments. The compound facilitates the chemical reactions necessary to form vibrant and accurate color images, contributing significantly to the quality of photographic prints and slides. Its consistent performance makes it a cornerstone of photographic chemical solutions used globally.


Beyond traditional photography, CD-4 finds a critical niche in scientific imaging, particularly in color microautoradiography. This technique involves the development of immunogold-labeled antibodies, allowing researchers to visualize and locate specific molecules or structures within biological samples at a microscopic level. The ability of CD-4 to accurately render these visualizations is vital for advancements in medical research and diagnostics. For those in this specialized field, exploring options for finding CD-4 suppliers China can be a strategic approach to sourcing.


The compound's effectiveness is rooted in its chemical synthesis for imaging, enabling the precise formation of color dyes. While its benefits are substantial, users should also be aware of its potential as a contact allergen and irritant. Understanding the chemical developer CD-4 properties, including safe handling practices, is crucial for all applications. NINGBO INNO PHARMCHEM CO.,LTD. provides access to this important chemical for a range of industrial and research needs.