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-#-Li023-20mg	Product Name:Lipoic acid impurity E	CAS No.:108015-78-7	Molecular Formula:
Product Number:PCL-#-Bz0274-50mg	Product Name:Erlotinib impurity SMA-1:	CAS No.:236750-62-2	Molecular Formula:
Product Number:PCL-#-Ur101-25mg	Product Name:Ursodeoxycholic acid EP impurity D; 3α,7β,12α-trihydroxy-5β-cholic-24-oleic acid (ursodeoxycholic acid)	CAS No.:2955-27-3	Molecular Formula:
Product Number:PCL-#-Br046-20mg	Product Name:1-(2-Aminoethyl)-3-(5-bromoquinoxalin-6-yl)urea (EP impurity G)	CAS No.:1216379-05-3	Molecular Formula:
Product Number:PCL-#-Bz0082-50mg	Product Name:Allopurinol impurity B	CAS No.:22407-20-1	Molecular Formula:
Product Number:PCL-#-Ii101-100mg	Product Name:Ibuprofen EP impurity A	CAS No.:66622-47-7	Molecular Formula:
Product Number:PCL-#-Es124-50mg	Product Name:Nitrilotriacetic acid	CAS No.:139-13-9	Molecular Formula:
Product Number:PCL-#-As0109-25mg	Product Name:atropine sulfate	CAS No.:5908-99-6	Molecular Formula:
Product Number:PCL-#-Do056-100mg	Product Name:Donepezil impurity H	CAS No.:120013-45-8	Molecular Formula:
Product Number:PCL-#-Ch100-50mg	Product Name:2-Chloromethyl-3,5-dimethyl-4-methoxypyridine hydrochloride	CAS No.:86604-75-3	Molecular Formula:
Product Number:PCL-#-Li0160-25mg	Product Name:N-[(2S)-3-Amino-2-hydroxypropyl]-N-[3-fluoro-4-(4-morpholinyl)phenyl]acetamide hydrochloride; Linezamine impurity 19	CAS No.:1391068-25-9	Molecular Formula:
Product Number:PCL-#-Bz0409-50mg	Product Name:Cefazolin EP Impurity B	CAS No.:2384108-14-7	Molecular Formula:
Product Number:PCL-#-Di2681-50mg	Product Name:4-(difluoromethoxy)-3-(cyclopropylmethoxy)benzaldehyde	CAS No.:151103-09-2	Molecular Formula:
Product Number:PCL-#-Bz0299-50mg	Product Name:Entecavir impurity C	CAS No.:2204369-23-1	Molecular Formula:
Product Number:PCL-#-Es014-100mg	Product Name:Escitalopram impurity (EP-F)	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Bz0418-50mg	Product Name:dehydronifedipine-N-oxide	CAS No.:88434-69-9	Molecular Formula:
Product Number:PCL-#-Mo015-50mg	Product Name:Mosapride Impurity D (4-amino-3,5-dichloro-2-ethoxy-N-[4-(4-fluorobenzyl)-morpholin-2-ylmethyl]-benzamide)	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Ai221-50mg	Product Name:Acetaminophen EP impurity A (o-acetaminophen)	CAS No.:614-80-2	Molecular Formula:
Product Number:PCL-#-Bz0161-50mg	Product Name:Montelukast	CAS No.:158966-92-8	Molecular Formula:
Product Number:PCL-#-Hs147-20mg	Product Name:p-Hydrazinobenzenesulfonamide hydrochloride	CAS No.:17852-52-7	Molecular Formula:

Products