Qingdao Dongnong Chemical Co., Ltd. integrates R&D innovation, pilot-scale transformation, and industrial scale-up. We deliver full-chain solutions — from custom synthesis to mass production — for pharmaceutical intermediates and fine chemicals across Europe.
Our two-pillar model of "Technical R&D + Large-Scale Cooperative Manufacturing" delivers two core strengths that set us apart in the fine chemicals industry.
Our core team leads all technical breakthroughs from product R&D through pilot optimization to industrial scale-up. With deep expertise in chemical processes and pharmaceutical raw material research, we resolve transformation bottlenecks from laboratory to production line — ensuring stable, efficient, and eco-friendly processes.
After industrial scale-up and stable process validation, large-scale standardized manufacturing is carried out at our partnered Lanzhou production base (Gesen Chemical (Lanzhou) Co., Ltd.). Strict adherence to our production schedules, process specifications and quality requirements guarantees consistent product supply for bulk market demands.
Our product portfolio covers halogenated aromatics, phenylacetic acid derivatives, nitriles, and custom synthesized intermediates. All products come with MSDS/SDS documentation. Click any product for detailed specifications.
Our partnered production bases and affiliated cooperative enterprises are equipped with industry-leading production, environmental protection and quality inspection facilities.
Product research & development with custom synthesis capability
Process optimization & scale-up validation
Full-scale production at Lanzhou base
Consistent mass production
Gesen Chemical (Lanzhou) Co., Ltd. — covering 13,800 m2 with Class A Workshops No. 117 & 118 and a Class A tank farm. Complete environmental protection facilities including integrated Fenton flocculation units, emergency sewage storage tanks and lye spray towers.
The base is fitted with precision analytical instruments for full-process quality control from raw materials to finished products. We are actively building a comprehensive quality management system to ensure consistent product excellence.
Through affiliated pharmaceutical manufacturers (Changzhi Sanbao Biochemical Pharmaceutical, Shanxi Sanbao Kangyuan Pharmaceutical), we leverage pharma-grade production equipment for APIs and high-purity chemical products.
Complete environmental treatment facilities ensure eco-friendly production processes. Our facilities handle fine chemicals, daily chemicals, flavors & fragrances, and food additives.
We maintain rigorous quality standards and serve European and global markets with full REACH and GHS documentation for all products.
Full Safety Data Sheets available for all products, compliant with EU REACH Annex II format
All products classified per GHS/CLP regulation (EC 1272/2008) with proper hazard labeling
Assistance with REACH registration compliance and documentation for European customers
Request a quote, ask about custom synthesis, or inquire about any product. We respond within 24 hours (Beijing Time, UTC+8).