Top 5 Benzenesulfonyl Chloride manufacturers in China
- Addtime: 2025-06-04 / View: 33
Are you struggling to find a reliable Benzenesulfonyl Chloride supplier in China who won’t delay your production?
Do you worry about unstable quality, late delivery, or poor communication?
When sourcing chemicals for your business, you need more than just a low price—you need trusted manufacturers who deliver consistent purity, fast turnaround, and clear support.
In this article, we’ll help you save time and avoid risk by listing the top 5 Benzenesulfonyl Chloride manufacturers in China you can count on.

Why Choose a Benzenesulfonyl Chloride Company in China?
Choosing a benzenesulfonyl chloride company in China offers several advantages, making it a preferred option for many global buyers. Here are the key reasons:
Cost-Effective Production
China has a well-established chemical manufacturing infrastructure, allowing for economies of scale and lower production costs.Competitive pricing compared to Western suppliers without compromising quality.
Advanced Manufacturing Technology
Many Chinese chemical companies invest in modern synthesis techniques and high-purity production processes, ensuring consistent quality. Compliance with international standards (ISO, REACH, GMP).
Strong Supply Chain & Logistics
China has a robust chemical supply chain, ensuring reliable raw material sourcing and efficient distribution. Well-developed export infrastructure (ports, shipping, customs clearance) for smooth international deliveries.
Customization & Flexibility
Chinese manufacturers often offer tailored solutions, including different purity grades (98%, 99%, etc.) and packaging options (drums, IBCs, etc.). Ability to handle bulk orders and provide OEM/private labeling.
Regulatory Compliance & Safety
Reputable Chinese suppliers adhere to global safety and environmental regulations (e.g., REACH, OSHA, RoHS). Proper MSDS (Material Safety Data Sheets) and COA (Certificate of Analysis) provided.
Technical Support & R&D Capabilities
Many Chinese chemical companies have in-house R&D teams, allowing for product innovation and process optimization. Strong after-sales support, including technical guidance and troubleshooting.
How to Choose the Right Benzenesulfonyl Chloride Supplier in China?
When selecting a benzenesulfonyl chloride supplier in China, it's crucial to conduct thorough due diligence to ensure product quality and reliable service.
Start by verifying the supplier's business licenses and relevant certifications like ISO or REACH, which demonstrate compliance with international standards.
Assess their production capabilities to confirm they can meet your volume requirements, whether for small batches or bulk orders. Always request product samples and review the Certificate of Analysis to validate purity levels and quality control processes.
Examine their safety protocols, including the availability of MSDS documentation, and ensure they adhere to global regulatory requirements.
Compare pricing from multiple suppliers while considering payment terms and potential hidden costs. Research the supplier's reputation through customer reviews and consider arranging an on-site audit if possible.
Pay close attention to their logistics capabilities and after-sales support, as these factors significantly impact the supply chain efficiency. Before finalizing any agreement, negotiate clear contract terms regarding product specifications, delivery schedules, and quality guarantees.
Starting with a trial order is recommended to evaluate the supplier's performance before committing to larger purchases. Building a strong relationship with a trustworthy supplier can lead to long-term benefits in terms of pricing, quality consistency, and service reliability.

List of Benzenesulfonyl Chloride China Suppliers
Suzhou InterHaven ChainTech Co., Ltd.
Company Overview
Suzhou InterHaven ChainTech Co., Ltd. has established itself as a premier global chemical supplier since 2006, specializing in the export of high-quality chemical products, including benzenesulfonyl chloride. Our unique business model ensures customers worldwide enjoy equal access to competitive wholesale pricing, eliminating geographical price disparities.
With direct partnerships with an extensive network of certified Chinese chemical manufacturers, we maintain rigorous quality control while offering cost-effective solutions. Our clientele spans over 50 countries, serving diverse needs - from wholesalers seeking profitable sourcing channels to retailers demanding fair pricing and end-users requiring reliable chemical supplies.
Strong Production Capacity
We operate multiple advanced production sites with large-scale annual output. Our facilities support high-volume manufacturing of fine chemicals and intermediates to meet global B2B demand.
Technology-Driven Innovation
Our in-house R&D team collaborates with leading institutes to develop efficient, green synthesis methods. We’ve successfully delivered over 50 custom chemical solutions for international clients.
Strict Quality Control
All products are manufactured under ISO 9001 standards and tested with HPLC and GC methods. We provide COA, MSDS, and third-party lab reports upon request.
Customization Expertise
We offer flexible synthesis services, ranging from lab-scale development to full-scale production. For example, we delivered a customized sulfonyl chloride product to a European client within 30 days.
Shanghai Ruizheng Chemical Technology Co., Ltd.
Focuses on R&D-driven production, offering benzenesulfonyl chloride with ≥99% purity for lab and industrial use. Provides detailed COA, MSDS, and small-batch sampling. Strong in hazardous chemical logistics, especially for European and Southeast Asian markets.
Hangzhou DayangChem Co., Ltd.
A GMP-certified supplier with a 5,000-ton annual capacity, catering to pharmaceutical intermediates. Known for low impurity levels (heavy metals <10ppm) and flexible packaging (drums, IBCs). Exports to the U.S. and India under strict FDA compliance.
Nanjing Chemlin Chemical Co., Ltd.
Specializes in bulk benzenesulfonyl chloride for industrial applications (dyes, surfactants). Offers cost-effective pricing for large orders (20+ tons) with fast production turnaround. Provides third-party testing reports (SGS/BV).
Wuhan Fortuna Chemical Co., Ltd.
A tech-oriented manufacturer with in-house R&D, producing 99.9% ultra-pure grades for electronics and specialty chemicals. Holds patents for low-residue synthesis. Preferred by Japanese and Korean buyers for consistency and traceability.
Order & Sample Testing benzenesulfonyl chloride Directly From China
Inter Haven Chain Tech Benzenesulfonyl Chloride Quality Testing Process
Raw Material Inspection
Supplier Audit: Only source from GMP-certified and ISO-compliant manufacturers.
Pre-Shipment Check: Verify raw material purity (≥99%) via GC (Gas Chromatography) and HPLC (High-Performance Liquid Chromatography).
In-Process Quality Control
Reaction Monitoring: Track synthesis parameters (temperature, pressure, pH) for consistency.
Intermediate Testing: Check for impurities (e.g., benzene, sulfonic acid derivatives) using FTIR Spectroscopy.
Final Product Testing
All benzenesulfonyl chloride batches undergo:
Purity Analysis: GC-MS/HPLC to confirm 98%–99.9 % purity (customizable).
Moisture Content: Karl Fischer titration (<0.5% water content).
Chloride Content: Argentometric titration to ensurethe correct sulfonyl chloride group ratio.
Appearance & Physical Properties: White to light yellow crystals, free of particulates.
Safety & Compliance Verification
MSDS Review: Confirm compliance with OSHA, REACH, and DOT regulations.
Heavy Metal Screening: ICP-MS testing for Pb, Hg, Cd, and As (limits: <10 ppm).
Third-Party Validation
Partner with SGS, BV, or TÜV for an independent Certificate of Analysis (CoA).
Purchase benzenesulfonyl chloride directly from Suzhou InterHaven ChainTech
1. Visit the website – Go to globalchemic.com to browse the products.
2. Contact sales – Contact by phone (+86 17763326440) or email (John@globalchemic.com).
3. Discuss the order – Confirm product details, quantity, and packaging.
4. Complete payment and shipping – Agree on payment terms and delivery method.
5 . Receive the product – Wait for shipment and confirm delivery.
For more details, visit their website or contact their team directly.
When it comes to sourcing reliable, high-purity benzenesulfonyl chloride, Suzhou InterHaven ChainTech is your ideal partner. We specialize in providing premium-grade benzenesulfonyl chloride (98%-99.9% purity) with strict quality control, ensuring every batch meets international standards (ISO, GMP, REACH compliant). Our vertically integrated production process—from raw material inspection to final product testing—guarantees exceptional consistency and safety, backed by comprehensive documentation (COA, MSDS, third-party lab reports).
With strong R&D capabilities, we offer custom synthesis solutions tailored to your specific requirements, whether for pharmaceutical intermediates, agrochemicals, or specialty chemical applications. Our efficient global supply chain ensures on-time delivery, while competitive pricing makes us a cost-effective choice for both small-scale and bulk orders.