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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-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:
Product Number:PCL-2020HC034-250ml Acetic acid-sodium acetate buffer (pH 4.6) Product Name:Acetic acid-sodium acetate buffer (pH 4.6) CAS No.: Molecular Formula:
Product Number:PCL-2020HC042-250ml Phosphate buffer (pH 2.0) Product Name:Phosphate buffer (pH 2.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC002-250ml 0.5% sodium dodecyl sulfate in phosphate buffer Product Name:0.5% sodium dodecyl sulfate in phosphate buffer CAS No.: Molecular Formula:
Product Number:PCL-2020HC019-250ml Tris hydrochloride buffer (pH 7.2) Product Name:Tris hydrochloride buffer (pH 7.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC024-250ml Borax-sodium carbonate buffer (pH 8.0~11.2) Product Name:Borax-sodium carbonate buffer (pH 8.0~11.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC009-500ml Barbiturate buffer2 Product Name:Barbiturate buffer2 CAS No.: Molecular Formula:
Product Number:PCL-2020HC025-250ml Boric acid-potassium chloride buffer (pH 9.0) Product Name:Boric acid-potassium chloride buffer (pH 9.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC018-250ml Citrate-sodium hydrogen phosphate buffer (pH 7.0) Product Name:Citrate-sodium hydrogen phosphate buffer (pH 7.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC030-250ml Acetic acid-sodium acetate buffer (pH 3.6) Product Name:Acetic acid-sodium acetate buffer (pH 3.6) CAS No.: Molecular Formula:
Product Number:PCL-2020HC023-250ml Borax-calcium chloride buffer (pH 8.0) Product Name:Borax-calcium chloride buffer (pH 8.0) CAS No.: Molecular Formula:
Product Number:PCL-2020HC026-250ml Borate-potassium chloride buffer (pH 9.6) Product Name:Borate-potassium chloride buffer (pH 9.6) CAS No.: Molecular Formula:
Product Number:PCL-2020HC016-250ml Citrate buffer (pH 6.2) Product Name:Citrate buffer (pH 6.2) CAS No.: Molecular Formula:
Product Number:PCL-2020HC032-250ml Acetic acid-sodium acetate buffer (pH 3.8) Product Name:Acetic acid-sodium acetate buffer (pH 3.8) CAS No.: Molecular Formula:
Product Number:PCL-2020HC010-500ml Barbiturate buffer1 Product Name:Barbiturate buffer1 CAS No.: Molecular Formula:
Product Number:PCL-2020HC031-250ml Acetic acid-sodium acetate buffer (pH 3.7) Product Name:Acetic acid-sodium acetate buffer (pH 3.7) CAS No.: Molecular Formula:
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