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-2024BZ237-50ml		Product Name:Chemical oxygen demand (CODG) Liquid Standard	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ963-50ml		Product Name:Hexavalent Chromium Solution Standard Substance in Water	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY545-500ml		Product Name:Sodium tetrachloromercurate solution 13.6g/L	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY213-500ml		Product Name:Phosphoric acid solution in methanol 25%	CAS No.:	Molecular Formula:
Product Number:PCL-2021SY068-100ml		Product Name:Tetramethylammonium hydroxide TS	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY190-500ml		Product Name:Perchloric acid-ethanol solution 7%	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY189-500ml		Product Name:Zinc sulfate solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY298-100ml		Product Name:Anisaldehyde TS	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY139-100ml		Product Name:Vanillin sulfuric acid solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY125-500ml		Product Name:Acidic potassium permanganate solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY187-500ml		Product Name:Perchloric acid-ethanol solution 5%	CAS No.:	Molecular Formula:
Product Number:PCL-2021SY223-500ml		Product Name:Ferrous sulfate test solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY205-50ml		Product Name:Acetaldehyde aqueous solution	CAS No.:	Molecular Formula:
Product Number:PCL-#-TP002-100ml		Product Name:10% Ascorbic Acid Solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY299-500ml		Product Name:Chloral hydrate solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY066-100ml		Product Name:Sodium chlorite saturated solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY149-250ml		Product Name:Ehrlich-Hg reagent	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ324-1ml		Product Name:Acetaldehyde standard solution 200PPm	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ323-1ml		Product Name:Acetaldehyde standard solution 100PPm	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ322-1ml		Product Name:Acetaldehyde standard solution 50PPm	CAS No.:	Molecular Formula:

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