Precursor chemicals refer to substances such as precursors, raw materials, and chemical auxiliaries that can be used to manufacture drugs and are regulated by the state. The "Regulation on the administration of precursor chemicals" (revised on September 18, 2018) Article 2, Chapter 1, categorizes precursor chemicals into three types, totaling 38 kinds. The first type includes main raw materials that can be used for drug production, while the second and third types are chemical auxiliaries that can be used for this purpose.
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Regulation on the administration of precursor chemicals (2018 Revision)