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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-2020HC016-500ml Citrate Buffer（pH6.2） Product Name:Citrate Buffer（pH6.2） CAS No.: Molecular Formula:
Product Number:PCL-2020HC006-500ml Tris buffer(pH8.1) Product Name:Tris buffer(pH8.1) CAS No.: Molecular Formula:
Product Number:PCL-2020HC003-500ml Triethylamine buffer(pH3.2) Product Name:Triethylamine buffer(pH3.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC013-500ml Potassium hydrogen phthalate-sodium hydroxide buffer solution Product Name:Potassium hydrogen phthalate-sodium hydroxide buffer solution CAS No.: Molecular Formula:
Product Number:PCL-2020HC033-500ml Acetic acid-sodium acetate buffer(pH4.5) Product Name:Acetic acid-sodium acetate buffer(pH4.5) CAS No.: Molecular Formula:
Product Number:PCL-2020HC023-500ml Borax-Calcium Chloride Buffer Product Name:Borax-Calcium Chloride Buffer CAS No.: Molecular Formula:
Product Number:PCL-2020HC043-500ml Phosphate buffered saline(pH2.5) Product Name:Phosphate buffered saline(pH2.5) CAS No.: Molecular Formula:
Product Number:PCL-2020HC056-500ml Phosphate buffered saline(pH7.8～8.0) Product Name:Phosphate buffered saline(pH7.8～8.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC036-500ml Acetic acid-potassium acetate buffer（pH4.3） Product Name:Acetic acid-potassium acetate buffer（pH4.3） CAS No.: Molecular Formula:
Product Number:PCL-2020HC046-500ml Phosphate buffered saline(pH6.5) Product Name:Phosphate buffered saline(pH6.5) CAS No.: Molecular Formula:
Product Number:PCL-2020HC052-250ml Phosphate buffer (pH 7.3) Product Name:Phosphate buffer (pH 7.3) CAS No.: Molecular Formula:
Product Number:PCL-2020HC047-250ml Phosphate buffer (pH 6.6) Product Name:Phosphate buffer (pH 6.6) CAS No.: Molecular Formula:
Product Number:PCL-#-HC011-500ml Buffer solution (PBS) Product Name:Buffer solution (PBS) CAS No.: Molecular Formula:
Product Number:PCL-2020HC048-250ml Phosphate buffer (pH 6.8) Product Name:Phosphate buffer (pH 6.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC051-250ml Phosphate buffer (pH 7.2) Product Name:Phosphate buffer (pH 7.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC001-250ml Ethanol-ammonium acetate buffer (pH 3.7) Product Name:Ethanol-ammonium acetate buffer (pH 3.7) CAS No.: Molecular Formula:
Product Number:PCL-2020HC049-250ml Phosphate buffer (with pancreatin) (pH 6.8) Product Name:Phosphate buffer (with pancreatin) (pH 6.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC053-250ml Phosphate buffer (pH 7.4) Product Name:Phosphate buffer (pH 7.4) CAS No.: Molecular Formula:
Product Number:PCL-2020HC003-250ml Triethylamine buffer (pH 3.2) Product Name:Triethylamine buffer (pH 3.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC046-250ml Phosphate buffer (pH 6.5) Product Name:Phosphate buffer (pH 6.5) CAS No.: Molecular Formula:
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