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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:GBW(E)084807 Chemical oxygen demand (CODcr) solution standard substance 9 Product Name:Chemical oxygen demand (CODcr) solution standard substance 9 CAS No.: Molecular Formula:
Product Number:GBW(E)084809 Chemical oxygen demand (CODcr) solution standard substance 8 Product Name:Chemical oxygen demand (CODcr) solution standard substance 8 CAS No.: Molecular Formula:
Product Number:GBW(E)084810 Chemical oxygen demand (CODcr) solution standard substance 7 Product Name:Chemical oxygen demand (CODcr) solution standard substance 7 CAS No.: Molecular Formula:
Product Number:GBW(E)084811 Chemical oxygen demand (CODcr) solution standard substance 6 Product Name:Chemical oxygen demand (CODcr) solution standard substance 6 CAS No.: Molecular Formula:
Product Number:GBW(E)084808 Chemical oxygen demand (CODcr) solution standard substance 5 Product Name:Chemical oxygen demand (CODcr) solution standard substance 5 CAS No.: Molecular Formula:
Product Number:GBW(E)084812 Chemical oxygen demand (CODcr) solution standard substance 4 Product Name:Chemical oxygen demand (CODcr) solution standard substance 4 CAS No.: Molecular Formula:
Product Number:GBW(E)084813 Chemical oxygen demand (CODcr) solution standard substance 3 Product Name:Chemical oxygen demand (CODcr) solution standard substance 3 CAS No.: Molecular Formula:
Product Number:GBW(E)081786 Chemical oxygen demand (CODcr) solution standard substance 2 Product Name:Chemical oxygen demand (CODcr) solution standard substance 2 CAS No.: Molecular Formula:
Product Number:GBW(E)084814 Chemical oxygen demand (CODcr) solution standard substance 1 Product Name:Chemical oxygen demand (CODcr) solution standard substance 1 CAS No.: Molecular Formula:
Product Number:PCL-#-Rd008 Carbazole Melting Point Standards Product Name:Carbazole Melting Point Standards CAS No.: Molecular Formula:
Product Number:PCL-#-Rd020 Imidazole Melting Point Standards Product Name:Imidazole Melting Point Standards CAS No.: Molecular Formula:
Product Number:PCL-#-Rd002 p-Nitrotoluene Melting Point Standard Product Name:p-Nitrotoluene Melting Point Standard CAS No.: Molecular Formula:
Product Number:PCL-#-Rd016 p-Nitrobenzoic Acid Melting Point Standard Product Name:p-Nitrobenzoic Acid Melting Point Standard CAS No.: Molecular Formula:
Product Number:PCL-#-Rd015 Adipic Acid Melting Point Standards Product Name:Adipic Acid Melting Point Standards CAS No.: Molecular Formula:
Product Number:PCL-#-Rd022 Lauric Acid Melting Point Standard Product Name:Lauric Acid Melting Point Standard CAS No.: Molecular Formula:
Product Number:GBW(E)130415 Potassium Chloride Conductivity Solution Standard Material Product Name:Potassium Chloride Conductivity Solution Standard Material CAS No.: Molecular Formula:
Product Number:GBW(E)084622 Ammonia nitrogen solution in water standard substance 5 Product Name:Ammonia nitrogen solution in water standard substance 5 CAS No.: Molecular Formula:
Product Number:GBW(E)084619 Ammonia nitrogen solution in water standard substance 4 Product Name:Ammonia nitrogen solution in water standard substance 4 CAS No.: Molecular Formula:
Product Number:GBW(E)084621 Ammonia nitrogen solution in water standard substance 3 Product Name:Ammonia nitrogen solution in water standard substance 3 CAS No.: Molecular Formula:
Product Number:GBW(E)084620 Ammonia nitrogen solution in water standard substance 2 Product Name:Ammonia nitrogen solution in water standard substance 2 CAS No.: Molecular Formula:
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