Hengyuan Fine Chemical | Reference Materials and Standards | 50,000+ Ready-to-Ship, High-Precision Solutions

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	Product Name	CAS No.	Molecular Formula
Product Number:PCL-#-Br037-100mg	Product Name:BPZ-14 Control (brexpiprazole impurity 2)	CAS No.:2094559-58-5	Molecular Formula:
Product Number:PCL-#-Bz0414-50mg	Product Name:Vildagliptin/5-amino-adamantane-1,3-diol	CAS No.:1382839-19-1	Molecular Formula:
Product Number:PCL-#-Bz0389-50mg	Product Name:Ceflorin impurity B/cephalosporin	CAS No.:1240196-56-8	Molecular Formula:
Product Number:PCL-#-Va007-100mg	Product Name:Parecoxib sodium impurity I	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Pr040-100mg	Product Name:Propofol impurity 2E	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Di153-50mg	Product Name:Bromhexine hydrochloride impurity A; 2-Amino-3,5-dibromobenzyl alcohol	CAS No.:50739-76-9	Molecular Formula:
Product Number:PCL-#-Bz0228-50mg	Product Name:Atorvastatin impurity 2 (racemic)	CAS No.:1391052-00-8	Molecular Formula:
Product Number:PCL-#-To010-100mg	Product Name:(6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)-methyl-(4-methyl-piperidin-3-yl)-amine (tofacitinib impurity E)	CAS No.:1812890-23-5	Molecular Formula:
Product Number:PCL-#-Pa014-25mg	Product Name:9-(2,3-Dihydroxypropionyl)-8-fluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxo-3a-azepine-5-carboxylic acid Pazufloxacin impurity D-2	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Am0979-15mg	Product Name:Amoxicillin EP Impurity L; Amoxicillin Impurity L	CAS No.:1789703-32-7	Molecular Formula:
Product Number:PCL-#-Bz0424-50mg	Product Name:Nifedipine impurity 9	CAS No.:87625-92-1	Molecular Formula:
Product Number:PCL-#-Bz0399-50mg	Product Name:Ceftriaxone EP Impurity C	CAS No.:58909-39-0	Molecular Formula:
Product Number:PCL-#-Li100-50mg	Product Name:Linezolid impurity B (dibenzyl carbonate)	CAS No.:3459-92-5	Molecular Formula:
Product Number:PCL-#-Bz0238-50mg	Product Name:Atorvastatin cyclic sodium salt (isopropyl) impurity	CAS No.:1316291-19-6	Molecular Formula:
Product Number:PCL-#-Li138-100mg	Product Name:Ritarestat impurity O	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Az532-50mg	Product Name:Azithromycin EP impurity H; Azithromycin impurity III (impurity H) 3'-N-[[4-(acetylamino)phenyl]sulfonyl]-3'-N-desmethyl azithromycin	CAS No.:612069-30-4	Molecular Formula:
Product Number:PCL-#-Fu008-25mg	Product Name:Furosemide EP impurity F	CAS No.:4793-38-8	Molecular Formula:
Product Number:PCL-#-Di037-100mg	Product Name:2,3-Dimethoxybenzaldehyde	CAS No.:86-51-1	Molecular Formula:
Product Number:PCL-#-Am005-100mg	Product Name:Sodium p-aminobenzenesulfonate	CAS No.:515-74-2	Molecular Formula:
Product Number:PCL-#-To015-100mg	Product Name:Tofacitinib impurity M	CAS No.:2407039-29-4	Molecular Formula:

Products