Sulfanilic Acid: Your Premier Supplier for High-Purity 4-Aminobenzenesulfonic Acid
Discover the exceptional quality and versatility of Sulfanilic Acid (CAS 121-57-3). As a leading manufacturer and supplier in China, we provide high-purity white crystalline powder essential for dye production, pharmaceutical synthesis, and agrochemical applications. Get a competitive quote and reliable supply chain for your chemical needs.
Get a Quote & SampleUnlocking Chemical Excellence with Sulfanilic Acid

Sulfanilic Acid (CAS 121-57-3)
As a trusted Sulfanilic Acid manufacturer and supplier in China, we offer high-purity 4-Aminobenzenesulfonic Acid (≥99%). This white crystalline powder is a critical building block for azo dyes, sulfa drugs, and agricultural chemicals, ensuring consistent quality for your formulations. Partner with us for reliable supply and exceptional value.
- High Purity Sulfanilic Acid: Guaranteed assay of ≥99% for critical applications.
- Versatile Chemical Intermediate: Essential for azo dye synthesis, pharmaceutical intermediates, and pesticide manufacturing.
- Reliable Manufacturer in China: Benefit from stable production capacity and consistent quality control.
- Competitive Pricing: Secure your supply of 4-Aminobenzenesulfonic Acid at favorable manufacturer prices.
Key Advantages of Partnering with Us
Superior Product Quality
Our Sulfanilic Acid consistently meets stringent purity standards (≥99%), ensuring optimal performance in your dye, pharmaceutical, or agrochemical applications. We are your reliable supplier for quality you can trust.
Extensive Application Scope
From vibrant azo dyes and essential sulfa drugs to effective pesticides, Sulfanilic Acid serves as a crucial intermediate. Explore how our product can enhance your chemical synthesis and end-product efficacy.
Global Supply Chain Expertise
Leverage our robust manufacturing capabilities and efficient logistics as a leading Sulfanilic Acid supplier from China. We ensure timely delivery and consistent availability to meet your production demands.
Diverse Applications of Sulfanilic Acid
Dye Industry
As a primary intermediate, Sulfanilic Acid is vital for synthesizing a wide array of azo dyes, crucial for textiles, leather, and paper industries. Buy quality dye intermediates from our experienced manufacturer.
Pharmaceutical Synthesis
Sulfanilic Acid is a key building block for sulfonamide drugs, offering antibacterial properties and serving as a critical pharmaceutical intermediate. Enquire about purchasing for your drug development needs.
Agrochemicals
Used in the production of pesticides, including certain herbicides, Sulfanilic Acid contributes to crop protection and yield enhancement. Source your agrochemical intermediates from a dependable supplier.
Analytical Chemistry
Its role as a reagent for detecting nitrites makes Sulfanilic Acid indispensable in laboratory analysis and quality control processes. Get reliable analytical reagents from our China-based facility.