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:410006		Product Name:Sodium levothyroxine	CAS No.:#	Molecular Formula:
Product Number:410003		Product Name:Mifepristone	CAS No.:84371-65-3	Molecular Formula:
Product Number:410004		Product Name:Misoprostol	CAS No.:59122-46-2	Molecular Formula:
Product Number:410009		Product Name:Desmopressin acetate impurity I	CAS No.:#	Molecular Formula:
Product Number:410007		Product Name:E.coli host cell DNA residue detection kit (PCR-fluorescent probe method)	CAS No.:#	Molecular Formula:
Product Number:410008		Product Name:Gestodienone	CAS No.:60282-87-3	Molecular Formula:
Product Number:121527		Product Name:Tibetan Prickly Parsley	CAS No.:#	Molecular Formula:
Product Number:100602		Product Name:Erdostein	CAS No.:100602-N/A	Molecular Formula:
Product Number:121528		Product Name:Maitre d'Or	CAS No.:#	Molecular Formula:
Product Number:100601		Product Name:Simvastatin	CAS No.:79902-63-9	Molecular Formula:
Product Number:121525		Product Name:Bear bile powder	CAS No.:#	Molecular Formula:
Product Number:PCL-#-Lv330-20mg		Product Name:Lovastatin	CAS No.:75330-75-5	Molecular Formula:
Product Number:121529		Product Name:Ganqingqinglan	CAS No.:#	Molecular Formula:
Product Number:121520		Product Name:Red ginseng reeds	CAS No.:#	Molecular Formula:
Product Number:100609		Product Name:Tegaserod maleate	CAS No.:100609-N/A	Molecular Formula:
Product Number:100608		Product Name:Ornidazole	CAS No.:16773-42-5	Molecular Formula:
Product Number:100607		Product Name:Irbesartan	CAS No.:100607-N/A	Molecular Formula:
Product Number:PCL-#-AC229-1g		Product Name:Woga Pi	CAS No.:####	Molecular Formula:
Product Number:100606		Product Name:Naftopidil	CAS No.:100606-N/A	Molecular Formula:
Product Number:121524		Product Name:Sheep bile powder	CAS No.:#	Molecular Formula:

1. <
2. 561
3. 562
4. 563
5. 564
6. 565
7. >
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690