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--2021RY058--100ml		Product Name:Formic acid solution standard material	CAS No.:	Molecular Formula:
Product Number:PCL-2021RY057-100ml		Product Name:Acetic acid solution standard substance	CAS No.:	Molecular Formula:
Product Number:PCL-2025SY011-100ml		Product Name:Lactose standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ901-50mL		Product Name:Nitrite standard stock solution	CAS No.:	Molecular Formula:
Product Number:PCL-2021BZ155-1ml		Product Name:Nitrobenzene solution in ethanol Standard substance	CAS No.:	Molecular Formula:
Product Number:PCL-2023SY008-200ml		Product Name:Thioacetamide TS-A	CAS No.:	Molecular Formula:
Product Number:PCL-2021RY056-100ml		Product Name:Mercury dichloride column treatment liquid (mercury dichloride saturated benzene solution)	CAS No.:	Molecular Formula:
Product Number:PCL-2021BZ154-100ml		Product Name:Nitrite standard solution in water	CAS No.:	Molecular Formula:
Product Number:PCL-2023RY012-1L		Product Name:Hydrofluoric acid solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ1050-100ml		Product Name:Nitrate standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ975-20ml		Product Name:Standard nitrate stock solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ619-1ml		Product Name:Diisononyl phthalate (single isomer) standard solution in dichloromethane	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ662-1.2ml		Product Name:4-Nonylphenol-D8 solution in methanol standard substance	CAS No.:	Molecular Formula:
Product Number:PCL-2023RY017-250ml		Product Name:Sodium hydroxide titration solution standard substance	CAS No.:	Molecular Formula:
Product Number:P002611-100ml		Product Name:Tetramethylammonium hydroxide solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ661-1ml		Product Name:Naphthalene-methanol standard solution [solution standard substance for liquid chromatography calibration]	CAS No.:	Molecular Formula:
Product Number:PCL-2021BZ153-100ml		Product Name:Nitrate ion standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2021BZ152-100ml		Product Name:Nitrite ion standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ967-500ml		Product Name:Fluoride standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2023RY015-1L		Product Name:Fuchsin sulfite solution	CAS No.:	Molecular Formula:

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