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Hengyuan Fine Chemical is a leading supplier of reference materials and standards, specializing in providing high-precision and highly reliable solutions for industries such as environmental testing, food safety, and pharmaceutical research and development. We offer nearly 50,000 ready-to-ship products, including pharmaceutical impurity reference standards, chemical analysis reference standards, pharmacopoeial titrants, biopeptide reference standards, and more, meeting the testing needs of various industries.

With a craftsmanship spirit at our core, we are committed to refining every product to ensure its quality and accuracy. At the same time, we understand customer needs through in-depth communication, providing customized solutions and fast delivery services to support the efficient progress of your projects.

Hengyuan Fine Chemical—where precision becomes a habit and trust becomes a bond.


Product Number Image Product Name CAS No. Molecular Formula
Product Number: Chlorpyrifos-methyl Product Name:Chlorpyrifos-methyl CAS No.:5598-13-0 Molecular Formula:
Product Number: Chlorpyrifos Product Name:Chlorpyrifos CAS No.:2921-88-2 Molecular Formula:
Product Number: Chlorpropham Product Name:Chlorpropham CAS No.:101-21-3 Molecular Formula:
Product Number: Chloroxuron Product Name:Chloroxuron CAS No.:1982-47-4 Molecular Formula:
Product Number: Chlormephos in Acetonitrile Product Name:Chlormephos in Acetonitrile CAS No.:24934-91-6 Molecular Formula:
Product Number: Chlorimuron-ethyl Product Name:Chlorimuron-ethyl CAS No.:90982-32-4 Molecular Formula:
Product Number: Chloridazon Product Name:Chloridazon CAS No.:1698-60-8 Molecular Formula:
Product Number: Chlorfluazuron Product Name:Chlorfluazuron CAS No.:71422-67-8 Molecular Formula:
Product Number: Chlorfenvinphos in Acetone Product Name:Chlorfenvinphos in Acetone CAS No.:470-90-6 Molecular Formula:
Product Number: Chlorbromuron Product Name:Chlorbromuron CAS No.:13360-45-7 Molecular Formula:
Product Number: Chinomethionat Product Name:Chinomethionat CAS No.:196869 Molecular Formula:
Product Number: Carpropamid Product Name:Carpropamid CAS No.:104030-54-8 Molecular Formula:
Product Number: Carfentrazone-ethyl Product Name:Carfentrazone-ethyl CAS No.:128639-02-1 Molecular Formula:
Product Number: Carboxin Product Name:Carboxin CAS No.:5234-68-4 Molecular Formula:
Product Number: Carbosulfan Product Name:Carbosulfan CAS No.:55285-14-8 Molecular Formula:
Product Number: Carbofuran-3-keto Product Name:Carbofuran-3-keto CAS No.:16709-30-1 Molecular Formula:
Product Number: Carbofuran-3-hydroxy Product Name:Carbofuran-3-hydroxy CAS No.:16655-82-6 Molecular Formula:
Product Number: Carbofuran-phenol Product Name:Carbofuran-phenol CAS No.:1563-38-8 Molecular Formula:
Product Number: Carbetamide Product Name:Carbetamide CAS No.:16118-49-3 Molecular Formula:
Product Number: Carbendazim Product Name:Carbendazim CAS No.:10605-21-7 Molecular Formula:
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