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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:PCL-2023SY010-500mL Nessler's reagent (mercuric chloride-potassium iodide-potassium hydroxide solution) Product Name:Nessler's reagent (mercuric chloride-potassium iodide-potassium hydroxide solution) CAS No.: Molecular Formula:
Product Number:PCL-2023SY011-100ml Nessler's reagent Product Name:Nessler's reagent CAS No.: Molecular Formula:
Product Number:PCL-2023SY010-100mL Nessler's reagent (mercuric chloride-potassium iodide-potassium hydroxide solution) Product Name:Nessler's reagent (mercuric chloride-potassium iodide-potassium hydroxide solution) CAS No.: Molecular Formula:
Product Number:PCL-2024SY002-100mL Nessler's reagent (mercuric chloride-potassium iodide-sodium hydroxide solution) Product Name:Nessler's reagent (mercuric chloride-potassium iodide-sodium hydroxide solution) CAS No.: Molecular Formula:
Product Number:R21645 Schaudinn's liquid Product Name:Schaudinn's liquid CAS No.: Molecular Formula:
Product Number:PCL-2021RY006-100ml Wright's stain Product Name:Wright's stain CAS No.: Molecular Formula:
Product Number:PCL-2024RY045-250ml Nessler's reagent (mercuric iodide-potassium iodide-sodium hydroxide solution) Product Name:Nessler's reagent (mercuric iodide-potassium iodide-sodium hydroxide solution) CAS No.: Molecular Formula:
Product Number:PCL-2023RY099-500ml Sodium hydroxide solution 0.1% Product Name:Sodium hydroxide solution 0.1% CAS No.: Molecular Formula:
Product Number:PCL-2024RY047-500ml Sodium hydroxide solution 0.4% Product Name:Sodium hydroxide solution 0.4% CAS No.: Molecular Formula:
Product Number:PCL-2022Ss001-500ml Silver sulfate solution Product Name:Silver sulfate solution CAS No.: Molecular Formula:
Product Number:PCL-2021ZSY068-100ml Chrome Black T Solution Product Name:Chrome Black T Solution CAS No.:1787-61-7 Molecular Formula:
Product Number:PCL-2025BY278-30ml Hexabromocyclododecane solution Product Name:Hexabromocyclododecane solution CAS No.: Molecular Formula:
Product Number:PCL-KR744-5ml Karl Fischer water content standard sample Product Name:Karl Fischer water content standard sample CAS No.: Molecular Formula:
Product Number:PCL-2023BZ147-100ml Arsenic standard stock solution Product Name:Arsenic standard stock solution CAS No.: Molecular Formula:
Product Number:PCL-2023BZ145-100ml Methylmercury standard stock solution Product Name:Methylmercury standard stock solution CAS No.: Molecular Formula:
Product Number:PCL-2025BZ006-100ml Mercury Standard Stock Solution Product Name:Mercury Standard Stock Solution CAS No.: Molecular Formula:
Product Number:PCL-2023BZ148-100ml Arsenite [As(Ⅲ)] standard stock solution Product Name:Arsenite [As(Ⅲ)] standard stock solution CAS No.: Molecular Formula:
Product Number:PCL-2023BZ149-100ml Arsenate [As(V)] Standard Stock Solution Product Name:Arsenate [As(V)] Standard Stock Solution CAS No.: Molecular Formula:
Product Number:PCL-#-2024BZ335-500ml Sodium barbital solution standard substance Product Name:Sodium barbital solution standard substance CAS No.: Molecular Formula:
Product Number:PCL-2023BZ079-100ml Silica standard solution Product Name:Silica standard solution CAS No.: Molecular Formula:
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