For professionals in photography, scientific research, and specialized chemical applications, securing a reliable supply of high-purity 4-(N-Ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate (CD-4) is paramount. This guide offers insights into sourcing this crucial compound effectively. When looking to buy CD-4, understanding its chemical synthesis for imaging and its specific applications is the first step.

The quality of CD-4 directly impacts the outcome of color development processes. Therefore, identifying reputable manufacturers and suppliers is critical. When searching for CD-4 suppliers China, consider factors such as purity levels (often specified as >98% by HPLC), consistency in batch production, and adherence to international quality standards. Many suppliers will provide detailed product specifications, including its beige fine crystalline powder appearance and a melting point of 155°C.


Exploring the various applications of CD-4, from color film processing to microautoradiography, helps in determining the exact grade and quantity required. For instance, its use as a contact allergen means that safety data sheets (SDS) and proper handling guidelines should always be consulted. Prioritizing suppliers who provide comprehensive safety information and demonstrate a commitment to quality control is a wise practice.


When engaging with potential suppliers, don't hesitate to request samples to test for quality and suitability. Comparing pricing, minimum order quantities, and delivery times from different manufacturers is also a key part of the sourcing process. Building a relationship with a trusted supplier can ensure a stable and cost-effective procurement of this essential photographic chemical. NINGBO INNO PHARMCHEM CO.,LTD. is a dedicated supplier focused on providing premium CD-4 to meet diverse industrial and research needs.