Producer
Jiangsu Changhai Chemical Co.
Jiangsu Changhai Chemical is a significant Chinese PCl3 producer operating in Jiangsu Province's chemical industrial corridor. Changhai Chemical focuses on phosphorus trichloride and downstream phosphorus chloride derivatives (phosphorus oxychloride POCl3, phosphorus pentachloride PCl5) serving the pharmaceutical and agrochemical intermediate markets. Jiangsu Province hosts a dense cluster of phosphorus chemistry producers near Shanghai's chemical distribution infrastructure. Changhai Chemical supplies PCl3 to domestic API manufacturers and exports to Indian and European pharmaceutical intermediates markets.
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Inputs supplied
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Goods downstream
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Facilities
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Stories
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Phosphorus Trichloride (PCl3)
55%Phosphorus Oxychloride (POCl3)
30%Phosphorus Pentachloride (PCl5)
15%
Intelligence
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Origin2023
Jiangsu Changhai Chemical exemplifies the dual-market positioning of Chinese phosphorus trichloride producers: PCl3 is simultaneously the critical intermediate for organophosphate herbicides and insecticides (the agricultural supply chain) AND a key reagent in pharmaceutical synthesis. In pharmaceutical chemistry, PCl3 and its derivatives (POCl3, PCl5) are used as chlorinating agents and activating reagents to convert carboxylic acids into acid chlorides — an essential step in synthesizing many APIs including antibiotics, antivirals, antifungals, and cardiovascular drugs. Changhai Chemical explicitly serves both markets: its POCl3 and PCl5 are sold to Indian and European pharmaceutical intermediates manufacturers who use them to make drug synthesis reagents. The same Jiangsu chemical plant produces the intermediate for glyphosate herbicide AND the reagent used in pharmaceutical synthesis, competing for capacity when both agrochemical and pharmaceutical demand peaks simultaneously (such as during a crop protection application season coinciding with a drug shortage). The pharmaceutical and agricultural supply chains share a Chinese chemical intermediate cluster without most participants in either supply chain realizing the connection.
China Pharmaceutical Industry Research ↗