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:101329	Product Name:Emtricitabine Isomer Check System Suitability Test Mixture	CAS No.:101329-N/A	Molecular Formula:
Product Number:101331	Product Name:Iodophorol impurity I (N,N'-bis(2,3-dihydroxypropyl)-5-amino-2,4,6-triiodo-1,3-benzenedicarboxamide)	CAS No.:101331-N/A	Molecular Formula:
Product Number:101330	Product Name:iophorol	CAS No.:101330-N/A	Molecular Formula:
Product Number:100029	Product Name:menaquinone	CAS No.:58-27-5	Molecular Formula:
Product Number:101359	Product Name:Adefovir impurity (adefovir)	CAS No.:101359-N/A	Molecular Formula:
Product Number:100028	Product Name:Norgestrel	CAS No.:100028-N/A	Molecular Formula:
Product Number:101358	Product Name:Mirinone impurity Ⅱ(1,6- dihydro -2- methyl -6- oxygen -(3,4'- bipyridine) -5- methyl formate)	CAS No.:101358-N/A	Molecular Formula:
Product Number:100027	Product Name:progesterone	CAS No.:57-83-0	Molecular Formula:
Product Number:101357	Product Name:Gadolinium beglucuronide impurity (sodium pyruvate)	CAS No.:101357-N/A	Molecular Formula:
Product Number:100096	Product Name:sulphanilamide	CAS No.:63-74-1	Molecular Formula:
Product Number:112000	Product Name:Tilin	CAS No.:20316-62-5	Molecular Formula:
Product Number:101364	Product Name:Rocuronium bromide impurity III(1-[3α, 17β- diacetoxy -2β(1- pyrrolidinyl) -5α- androstane -16β ]-1-(2- propenyl) pyrrolidine bromide)	CAS No.:101364-N/A	Molecular Formula:
Product Number:100033	Product Name:diethylstilbestrol	CAS No.:56-53-1	Molecular Formula:
Product Number:101363	Product Name:Rocuronium bromide impurity II(2β-(4- morpholinyl) -16β-(1- pyrrolidinyl) -5α- androstane -3α, 17β- diol)	CAS No.:101363-N/A	Molecular Formula:
Product Number:100032	Product Name:hydroxyprogesterone caproate injection	CAS No.:100032-N/A	Molecular Formula:
Product Number:101362	Product Name:Rocuronium bromide impurity I(3α- hydroxy -2β-(4- morpholinyl) -16β-(1- pyrrolidinyl) -5α- androstane -17β- acetic acid)	CAS No.:101362-N/A	Molecular Formula:
Product Number:101361	Product Name:Rocuronium bromide	CAS No.:119302-91-9	Molecular Formula:
Product Number:100030	Product Name:methimazole	CAS No.:100030-N/A	Molecular Formula:
Product Number:101360	Product Name:Acipimox impurity (5- methylpyrazine -2- carboxylic acid)	CAS No.:101360-N/A	Molecular Formula:
Product Number:100019	Product Name:Diphenyl -(2- chlorophenyl) methanol (clotrimazole impurity I)	CAS No.:100019-N/A	Molecular Formula:

Products