In the specialized world of industrial chemistry, identifying and sourcing reliable raw materials is a cornerstone of successful manufacturing. For the electroplating industry, achieving precise and high-quality finishes often depends on niche chemical intermediates. One such indispensable compound is identified by the CAS number 21668-81-5, widely known as 3-(Amidinothio)-1-propanesulfonic Acid, or UPS.
As a prominent chemical supplier in China, our mission is to bridge the gap between complex chemical needs and accessible, high-quality solutions. We specialize in providing UPS, a vital additive that plays a critical role in various electroplating applications, particularly electroless plating. Our commitment as a manufacturer in China ensures that clients receive a product characterized by consistent purity and reliable performance, essential for demanding industrial processes.
The primary utility of UPS, or 3-S-Isothiuronium propylsulfonate, lies in its function as an activation accelerator. In electroless plating, this means it significantly reduces the time it takes for the plating process to initiate, boosting operational efficiency. For procurement managers and R&D professionals, this translates into faster cycle times and potentially higher output. We ensure that the UPS we supply meets stringent quality standards, typically with a purity of 97% min, presented as a white to almost white powder or crystalline solid.
When you are looking to buy CAS 21668-81-5, consider the strategic advantage of sourcing from an established supplier in China. We offer competitive UPS electroplating additive price points, making it feasible for businesses to integrate this high-performance chemical into their formulations without compromising on quality or budget. We understand that evaluating new materials requires confidence, which is why we readily provide samples for your assessment.
The application of UPS extends beyond basic acceleration; it contributes to the overall quality of the deposited metal layer. By facilitating smoother and more uniform deposition, it helps achieve brighter and more ductile finishes. This is crucial for industries where both aesthetic appeal and functional performance are critical, such as in automotive components, electronics, and decorative hardware.
We pride ourselves on being more than just a supplier; we aim to be a partner in your success. By choosing us as your 3-(Amidinothio)-1-propanesulfonic Acid manufacturer, you gain access to a consistent supply chain and expert support. Whether you are looking to optimize your current plating processes or develop new applications, our high-quality UPS is engineered to meet your exacting requirements.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.