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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: Triforine Product Name:Triforine CAS No.:26644-46-2 Molecular Formula:
Product Number: Trifluralin Product Name:Trifluralin CAS No.:1582-09-8 Molecular Formula:
Product Number: Triclopyricarb Product Name:Triclopyricarb CAS No.:902760-40-1 Molecular Formula:
Product Number: Thiobencarb Product Name:Thiobencarb CAS No.:28249-77-6 Molecular Formula:
Product Number: Thiencarbazone-methyl Product Name:Thiencarbazone-methyl CAS No.:317815-83-1 Molecular Formula:
Product Number: Spirotetramat Product Name:Spirotetramat CAS No.:203313-25-1 Molecular Formula:
Product Number: S-Metolachlor Product Name:S-Metolachlor CAS No.:87392-12-9 Molecular Formula:
Product Number: Pyridalyl Product Name:Pyridalyl CAS No.:179101-81-6 Molecular Formula:
Product Number: Pyrethrins Product Name:Pyrethrins CAS No.:8003-34-7 Molecular Formula:
Product Number: pinoxaden Product Name:pinoxaden CAS No.:243973-20-8 Molecular Formula:
Product Number: Permethrin Product Name:Permethrin CAS No.:52645-53-1 Molecular Formula:
Product Number: Paraquat dichloride Product Name:Paraquat dichloride CAS No.:1910-42-5 Molecular Formula:
Product Number: Oxyfluorfen Product Name:Oxyfluorfen CAS No.:42874-03-3 Molecular Formula:
Product Number: Oxadiazon Product Name:Oxadiazon CAS No.:19666-30-9 Molecular Formula:
Product Number: Oxadiargyl Product Name:Oxadiargyl CAS No.:39807-15-3 Molecular Formula:
Product Number: Metamizole sodium Product Name:Metamizole sodium CAS No.:68-89-3 Molecular Formula:
Product Number: Metaldehyde Product Name:Metaldehyde CAS No.:108-62-3 Molecular Formula:
Product Number: Mefenpyr-diethyl Product Name:Mefenpyr-diethyl CAS No.:135590-91-9 Molecular Formula:
Product Number: Metalaxyl-M Product Name:Metalaxyl-M CAS No.:70630-17-0 Molecular Formula:
Product Number: Mecoprop Product Name:Mecoprop CAS No.:93-65-2 Molecular Formula:
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