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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: Cumyluron Product Name:Cumyluron CAS No.:99485-76-4 Molecular Formula:
Product Number: Crufomate Product Name:Crufomate CAS No.:299-86-5 Molecular Formula:
Product Number: Coumaphos Product Name:Coumaphos CAS No.:56-72-4 Molecular Formula:
Product Number: Clothianidin Product Name:Clothianidin CAS No.:210880-92-5 Molecular Formula:
Product Number: Cloransulam-methyl Product Name:Cloransulam-methyl CAS No.:147150-35-4 Molecular Formula:
Product Number: Cloquintocet-1-methylhexyl ester Product Name:Cloquintocet-1-methylhexyl ester CAS No.:99607-70-2 Molecular Formula:
Product Number: Clopyralid Product Name:Clopyralid CAS No.:1702-17-6 Molecular Formula:
Product Number: Clomeprop Product Name:Clomeprop CAS No.:84496-56-0 Molecular Formula:
Product Number: Clomazone Product Name:Clomazone CAS No.:81777-89-1 Molecular Formula:
Product Number: Clofentezine Product Name:Clofentezine CAS No.:74115-24-5 Molecular Formula:
Product Number: Clofencet Product Name:Clofencet CAS No.:129025-54-3 Molecular Formula:
Product Number: Clodinafop-propargyl ester Product Name:Clodinafop-propargyl ester CAS No.:105512-06-9 Molecular Formula:
Product Number: Clodinafop (free acid) Product Name:Clodinafop (free acid) CAS No.:114420-56-3 Molecular Formula:
Product Number: Clethodim Product Name:Clethodim CAS No.:99129-21-2 Molecular Formula:
Product Number: Cinosulfuron Product Name:Cinosulfuron CAS No.:94593-91-6 Molecular Formula:
Product Number: Cinidon-ethyl Product Name:Cinidon-ethyl CAS No.:142891-20-1 Molecular Formula:
Product Number: Chromafenozide Product Name:Chromafenozide CAS No.:143807-66-3 Molecular Formula:
Product Number: Chlorotoluron Product Name:Chlorotoluron CAS No.:15545-48-9 Molecular Formula:
Product Number: Chlorthiophos-sulfone Product Name:Chlorthiophos-sulfone CAS No.:25900-20-3 Molecular Formula:
Product Number: Chlorsulfuron Product Name:Chlorsulfuron CAS No.:64902-72-3 Molecular Formula:
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