For businesses involved in the production of high-quality dyes, particularly for the textile industry, the selection of raw materials is a decision of paramount importance. NINGBO INNO PHARMCHEM CO.,LTD. highlights the significance of sourcing high-purity 2,5-Diaminobenzenesulfonic acid (CAS 88-45-9), a critical intermediate that dictates the efficacy and brilliance of the final dye products. Our commitment as a manufacturer in China is to provide an intermediate that meets stringent quality standards, ensuring our clients can buy with confidence.
The purity of 2,5-Diaminobenzenesulfonic acid directly influences the reaction kinetics and the quality of the resultant dyes, such as Direct Blue 176 and Direct Black 32. Impurities can lead to off-shades, reduced color strength, and poor fastness properties, all of which negatively impact the marketability of the final product. Manufacturers who prioritize a reliable supplier offering a minimum purity of 98% benefit from predictable reaction pathways and superior dye performance. NINGBO INNO PHARMCHEM CO.,LTD. ensures that each batch of our violet powder chemical meets these exacting requirements.
Understanding the applications of 2,5-Diaminobenzenesulfonic acid is key to leveraging its full potential. As a versatile dye precursor, it enables the creation of dyes with excellent affinity for cellulosic materials. The competitive price point at which NINGBO INNO PHARMCHEM CO.,LTD. offers this compound further enhances its appeal, allowing for cost-effective production of premium textile colorants. We are dedicated to providing not just a product, but a solution that supports the growth and success of our clients in the global chemical market.
When you need to buy 2,5-Diaminobenzenesulfonic acid, consider the overall value proposition: high purity, consistent quality, critical dye applications, and competitive pricing. Partnering with NINGBO INNO PHARMCHEM CO.,LTD. ensures you have a dependable source for this essential chemical intermediate, supporting your manufacturing excellence and market competitiveness.
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.