When purchasing any chemical, especially one as critical to image quality as Color Developing Agent CD-4 (CAS 25646-77-9), understanding its specifications is paramount. As a dedicated manufacturer and supplier, NINGBO INNO PHARMCHEM CO.,LTD. believes in providing clear information to help our clients buy the right product for their needs. This article outlines the essential specifications of CD-4 that buyers should consider.

The primary specification that buyers of photographic chemicals look for is purity. For Color Developing Agent CD-4, a purity of 99%min is considered the industry standard for high-quality performance. This high level of purity ensures that the chemical will react predictably and effectively within the complex C-41 or RA-4 development processes, leading to accurate color reproduction and excellent image tonality. When you buy CD-4, always check the Certificate of Analysis (COA) from the manufacturer to verify its purity.

Another important characteristic is the appearance of the chemical. Color Developing Agent CD-4 typically presents as a white powder or crystal. While slight variations in color might occur due to trace elements or batch processing, a significant deviation from this description could indicate an issue with the product. For instance, if you are looking to buy CD-4 and it appears significantly discolored or in a liquid form (unless specifically formulated as a solution), it's worth further investigation with the supplier.

The CAS number, 25646-77-9, is a unique identifier for the chemical substance. This number is crucial for cross-referencing and ensuring you are indeed purchasing the correct compound. When searching for suppliers, using this CAS number along with the product name, 'Color Developing Agent CD-4', will help filter results and identify reputable manufacturers and distributors.

Beyond purity and appearance, understanding the application is key. CD-4 is specifically designed as a color developer for color photographic film and paper. Its chemical formula, C11H20N2O5S, and molecular weight are also important technical details that chemists and formulators might need. The pH of its solutions and its melting point (around 156-160°C, as often specified) are further indicators of its quality and stability.

At NINGBO INNO PHARMCHEM CO.,LTD., we are committed to transparency. We provide detailed specifications for our Color Developing Agent CD-4 to empower our customers. Whether you are a professional lab or a photography enthusiast looking to buy, understanding these specifications ensures you receive a product that meets your expectations for quality and performance. Contact us today to get precise specifications and a quote for your purchase of high-purity CD-4.