At Kaifeng Darui Pharmaceutical Co., Ltd. (Darui Pharma), we are a dynamic high-tech enterprise pioneering the development, production, and global distribution of high-end pharmaceutical intermediates, veterinary APIs, human APIs, and food additives. Nestled in the thriving chemical hub of Kaifeng, Henan Province, we harness the region’s abundant chemical resources and deep talent pool to deliver cutting-edge solutions that redefine industry standards. With a relentless focus on automation, sustainability, and innovation, we are committed to becoming a trusted partner in advancing global healthcare.
Innovation-Driven R&D: The Core of Our Success

At the heart of our success lies a world-class R&D Center dedicated to breakthroughs in pharmaceutical science. With an annual R&D investment exceeding ¥10 million, our team of 12 in-house experts—including 4 intermediate engineers, 2 senior engineers, 2 associate professors, and 1 lecturer—collaborates with 3 industry-leading PhD consultants specializing in fine chemistry. This powerhouse of young, specialized talent drives advancements in synthetic route optimization, process intensification, and green chemistry, enabling us to:
- Develop high-purity intermediates and APIs like Albendazole (antiparasitic), Acyclovir (antiviral), and Bronopol (preservative).
- Achieve rapid scale-up from lab to commercial production through advanced pilot facilities.
- Secure proprietary technologies that position us as leaders in niche markets.
Smart Manufacturing Infrastructure: Precision Meets Scalability
To meet global demand, we’ve invested heavily in automated, intelligent production systems designed for efficiency and compliance:
- Advanced Facilities: Fully automated synthesis reactors, precision distillation units, and isolation systems ensure batch-to-batch consistency.
- Quality Assurance: State-of-the-art analytical labs equipped with HPLC, GC-MS, and FTIR spectrometers guarantee 100% compliance with pharmacopeia standards.
- Eco-Conscious Operations: Integrated RCO exhaust treatment and 150-ton/day wastewater recycling systems minimize environmental impact, aligning with China’s green manufacturing goals.
Sustainability in Action: Green Chemistry, Global Impact
As stewards of the planet, we embed sustainability into every facet of our operations:
- Circular Economy: Byproduct recovery and solvent recycling programs reduce waste and resource consumption.
- Clean Energy: Transitioning to solar-powered facilities to cut carbon emissions by 30% by 2026.
- Community Commitment: Partnering with local universities to nurture the next generation of pharmaceutical innovators.
Our Product Portfolio & Collaboration Models
Core Offerings:
- Pharmaceutical Intermediates: Customized intermediates for antiviral, antiparasitic, and anti-inflammatory APIs.
- Veterinary APIs: GMP-certified active ingredients for livestock and pet medications.
- Human APIs: High-purity compounds for oncology, neurology, and infectious disease treatments.
- Food Additives: Safe, compliant preservatives and stabilizers for the food industry.
Flexible Partnerships:
- CMO/CDMO Services: From lab-scale synthesis to commercial-scale production, we offer end-to-end support for complex molecules.
- OEM Solutions: Tailored formulations and packaging for global regulatory markets (FDA, EMA, WHO-GMP).
- Technology Transfer: Collaborate with our R&D team to co-develop proprietary processes.
Why Partner with Darui Pharma?

- Speed to Market: Agile R&D and scalable infrastructure reduce development cycles by up to 40%.
- Cost Efficiency: Kaifeng’s resource advantages enable competitive pricing without compromising quality.
- Trust & Transparency: Rigorous IP protection protocols and real-time production tracking ensure peace of mind.
Join Us in Shaping the Future of Pharma
At Darui Pharma, we believe innovation thrives on collaboration. Whether you’re a startup seeking niche intermediates or a multinational corporation exploring sustainable APIs, let’s co-create solutions that transform healthcare.