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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: Dimetilan Product Name:Dimetilan CAS No.:644-64-4 Molecular Formula:
Product Number: Dimethomorph Product Name:Dimethomorph CAS No.:110488-70-5 Molecular Formula:
Product Number: Dimethirimol Product Name:Dimethirimol CAS No.:5221-53-4 Molecular Formula:
Product Number: Dimethenamid Product Name:Dimethenamid CAS No.:87674-68-8 Molecular Formula:
Product Number: Dimethametryn Product Name:Dimethametryn CAS No.:22936-75-0 Molecular Formula:
Product Number: Dimethachlor Product Name:Dimethachlor CAS No.:50563-36-5 Molecular Formula:
Product Number: Dimepiperate Product Name:Dimepiperate CAS No.:61432-55-1 Molecular Formula:
Product Number: Dimefuron Product Name:Dimefuron CAS No.:34205-21-5 Molecular Formula:
Product Number: Diflubenzuron Product Name:Diflubenzuron CAS No.:35367-38-5 Molecular Formula:
Product Number: Difenoxuron Product Name:Difenoxuron CAS No.:14214-32-5 Molecular Formula:
Product Number: Difenoconazole Product Name:Difenoconazole CAS No.:119446-68-3 Molecular Formula:
Product Number: Diethofencarb Product Name:Diethofencarb CAS No.:87130-20-9 Molecular Formula:
Product Number: Diclosulam Product Name:Diclosulam CAS No.:145701-21-9 Molecular Formula:
Product Number: Diclomezine Product Name:Diclomezine CAS No.:62865-36-5 Molecular Formula:
Product Number: Diclobutrazol Product Name:Diclobutrazol CAS No.:75736-33-3 Molecular Formula:
Product Number: Dichlorvos Product Name:Dichlorvos CAS No.:62-73-7 Molecular Formula:
Product Number: Dichlofluanid Product Name:Dichlofluanid CAS No.:1085-98-9 Molecular Formula:
Product Number: Naled Product Name:Naled CAS No.:300-76-5 Molecular Formula:
Product Number: Diazinon Product Name:Diazinon CAS No.:333-41-5 Molecular Formula:
Product Number: Daimuron Product Name:Daimuron CAS No.:42609-52-9 Molecular Formula:
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