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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-2020HC044-250ml Phosphate buffer (pH 5.0) Product Name:Phosphate buffer (pH 5.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC004-250ml 0.1 mol/L Tris buffer Product Name:0.1 mol/L Tris buffer CAS No.: Molecular Formula:
Product Number:PCL-2020HC038-250ml Acetic acid-ammonium acetate buffer (pH 4.8) Product Name:Acetic acid-ammonium acetate buffer (pH 4.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC005-250ml Tris buffer (pH 8.0) Product Name:Tris buffer (pH 8.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC028-500ml Acetate buffer500ml Product Name:Acetate buffer500ml CAS No.: Molecular Formula:
Product Number:PCL-2020HC057-250ml Phosphate buffer (pH 11.0) Product Name:Phosphate buffer (pH 11.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC045-250ml Phosphate buffer (pH 5.8) Product Name:Phosphate buffer (pH 5.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC037-250ml Acetic acid-ammonium acetate buffer (pH 4.5) Product Name:Acetic acid-ammonium acetate buffer (pH 4.5) CAS No.: Molecular Formula:
Product Number:PCL-2020HC007-250ml Tris buffer (pH 9.0) Product Name:Tris buffer (pH 9.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC040-250ml Phosphate-triethylamine buffer (pH 3.2) Product Name:Phosphate-triethylamine buffer (pH 3.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC058-250ml Phosphate-citrate buffer (PH-5.0) Product Name:Phosphate-citrate buffer (PH-5.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC013-250ml Potassium hydrogen phthalate-sodium hydroxide buffer solution (pH 5.0) Product Name:Potassium hydrogen phthalate-sodium hydroxide buffer solution (pH 5.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC036-250ml Acetic acid-potassium acetate buffer (pH 4.3) Product Name:Acetic acid-potassium acetate buffer (pH 4.3) CAS No.: Molecular Formula:
Product Number:PCL-2020HC039-250ml Acetic acid-ammonium acetate buffer (pH 6.0) Product Name:Acetic acid-ammonium acetate buffer (pH 6.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC055-250ml Phosphate buffer (pH 7.8) Product Name:Phosphate buffer (pH 7.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC050-250ml Phosphate buffer (pH 7.0) Product Name:Phosphate buffer (pH 7.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC028-250ml Acetate buffer250ml Product Name:Acetate buffer250ml CAS No.: Molecular Formula:
Product Number:PCL-2020HC015-250ml Citrate buffer Product Name:Citrate buffer CAS No.: Molecular Formula:
Product Number:PCL-#-HC009-500ml Tris-EDTA buffer Product Name:Tris-EDTA buffer CAS No.: Molecular Formula:
Product Number:PCL-2020HC021-250ml Ammonia-ammonium chloride buffer (pH 8.0) Product Name:Ammonia-ammonium chloride buffer (pH 8.0) CAS No.: Molecular Formula:
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