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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: Malathion Product Name:Malathion CAS No.:121-75-5 Molecular Formula:
Product Number: Malaoxon Product Name:Malaoxon CAS No.:1634-78-2 Molecular Formula:
Product Number: Linuron Product Name:Linuron CAS No.:330-55-2 Molecular Formula:
Product Number: Lenacil Product Name:Lenacil CAS No.:96639 Molecular Formula:
Product Number: Kresoxim-methyl Product Name:Kresoxim-methyl CAS No.:143390-89-0 Molecular Formula:
Product Number: Isoxathion Product Name:Isoxathion CAS No.:18854-01-8 Molecular Formula:
Product Number: Isoxaflutole Product Name:Isoxaflutole CAS No.:141112-29-0 Molecular Formula:
Product Number: Isoproturon Product Name:Isoproturon CAS No.:34123-59-6 Molecular Formula:
Product Number: Isoprothiolane Product Name:Isoprothiolane CAS No.:50512-35-1 Molecular Formula:
Product Number: Isopropalin Product Name:Isopropalin CAS No.:33820-53-0 Molecular Formula:
Product Number: Isoprocarb Product Name:Isoprocarb CAS No.:2631-40-5 Molecular Formula:
Product Number: Isocarbofos Product Name:Isocarbofos CAS No.:24353-61-5 Molecular Formula:
Product Number: Isocarbamide Product Name:Isocarbamide CAS No.:30979-48-7 Molecular Formula:
Product Number: Isazofos Product Name:Isazofos CAS No.:42509-80-8 Molecular Formula:
Product Number: Iprovalicarb Product Name:Iprovalicarb CAS No.:140923-17-7 Molecular Formula:
Product Number: Iprodione Product Name:Iprodione CAS No.:36734-19-7 Molecular Formula:
Product Number: Iprobenfos Product Name:Iprobenfos CAS No.:26087-47-8 Molecular Formula:
Product Number: Iodosulfuron-methyl sodium Product Name:Iodosulfuron-methyl sodium CAS No.:144550-36-7 Molecular Formula:
Product Number: Indoxacarb Product Name:Indoxacarb CAS No.:144171-61-9 Molecular Formula:
Product Number: Indanofan Product Name:Indanofan CAS No.:133220-30-1 Molecular Formula:
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