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.

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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-2024SY120-20ml		Product Name:Total Alkalinity Standard Solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY109-20ml		Product Name:Five-day biochemical oxygen demand analysis standard material	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY108-50ml		Product Name:Total organic carbon in water	CAS No.:	Molecular Formula:
Product Number:PCL-2021SY160-100ml		Product Name:Alkaline copper tartrate test solution (100 mL each of A and B)	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY036-500ml		Product Name:Dextrin solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY034-500ml		Product Name:Titanium trichloride solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ040-100ml		Product Name:Sodium Succinate Solution Standard Material	CAS No.:	Molecular Formula:
Product Number:PCL-2024SY002-250ml		Product Name:Nessler's reagent (mercuric chloride-potassium iodide-sodium hydroxide solution)	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY033-100ml		Product Name:Pyridine-acetic anhydride solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ035-500ml		Product Name:Hydrochloric acid methanol solution standard substance	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY031-250ml		Product Name:Acylating agent	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ178-100ml		Product Name:Hydrazine standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ034-500ml		Product Name:Benzthronium chloride standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY030-100ml		Product Name:Ninhydrin reagent	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY060-100ml		Product Name:Sodium tetraborate sulfuric acid solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY029-100ml		Product Name:Boron trifluoride solution in methanol	CAS No.:	Molecular Formula:
Product Number:PCL-2024RY028-100ml		Product Name:Methylamine aqueous solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ031-1L		Product Name:Hydrogen chloride-ethyl acetate solution standard substance	CAS No.:	Molecular Formula:
Product Number:PCL-2023BZ116-50ml		Product Name:Silver nitrate standard solution	CAS No.:	Molecular Formula:
Product Number:PCL-2024BZ166-500ml		Product Name:Potassium chloride solution standard substance 0.1mol/L	CAS No.:	Molecular Formula:

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