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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.

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Product Number Image Product Name CAS No. Molecular Formula
Product Number:PCL-#-Fo001-200mg Fosaprepitant impurity W Product Name:Fosaprepitant impurity W CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Pr095-20mg Pramipexole hydrochloride impurity d Product Name:Pramipexole hydrochloride impurity d CAS No.:104632-28-2 Molecular Formula:
Product Number:PCL-#-Bz0025-50mg M-hydroxylamine impurity 2 Product Name:M-hydroxylamine impurity 2 CAS No.:871875-57-9 Molecular Formula:
Product Number:PCL-#-Bz0211-50mg 2,4- diamino -5- formylamino -6- hydroxypyrimidine Product Name:2,4- diamino -5- formylamino -6- hydroxypyrimidine CAS No.:51093-31-3 Molecular Formula:
Product Number:PCL-#-En005-25mg Enalapril maleate impurity a Product Name:Enalapril maleate impurity a CAS No.:1356932-13-2 Molecular Formula:
Product Number:PCL-#-Mo102-25mg Moxifloxacin impurity j Product Name:Moxifloxacin impurity j CAS No.:112811-72-0 Molecular Formula:
Product Number:PCL-#-De028-25mg Dexmedetomidine impurity 12 Product Name:Dexmedetomidine impurity 12 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0302-50mg Entecavir enantiomer impurity f Product Name:Entecavir enantiomer impurity f CAS No.:188399-46-4 Molecular Formula:
Product Number:PCL-#-Bz0277-50mg Elotinib impurity EL-5-104 Product Name:Elotinib impurity EL-5-104 CAS No.:1172625-04-5 Molecular Formula:
Product Number:PCL-#-V067-50mg Voronorazan fumarate impurity 13 Product Name:Voronorazan fumarate impurity 13 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0327-50mg Meropenem isomer 201 Product Name:Meropenem isomer 201 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0189-50mg Domperidone impurity f Product Name:Domperidone impurity f CAS No.:1391053-55-6 Molecular Formula:
Product Number:PCL-#-Me081-100mg L- methionine sulfoxide Product Name:L- methionine sulfoxide CAS No.:3226-65-1 Molecular Formula:
Product Number:PCL-#-Bz0116-50mg Eperizon impurity f Product Name:Eperizon impurity f CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Az539-10mg Azithromycin impurity I Product Name:Azithromycin impurity I CAS No.:172617-84-4 Molecular Formula:
Product Number:PCL-#-Bz0415-50mg Vitamin B6 impurity 1 Product Name:Vitamin B6 impurity 1 CAS No.:5196-20-3 Molecular Formula:
Product Number:100776 Aripiprazole Product Name:Aripiprazole CAS No.:129722-12-9 Molecular Formula:
Product Number:PCL-#-Ch015-50mg Chlorphenamine maleate impurity c Product Name:Chlorphenamine maleate impurity c CAS No.:22630-25-7 Molecular Formula:
Product Number:PCL-#-Bz0204-50mg N- acetyldapsone Product Name:N- acetyldapsone CAS No.:565-20-8 Molecular Formula:
Product Number:PCL-#-Fm008-100mg Fmoc-O- tert-butyl -D- serine Product Name:Fmoc-O- tert-butyl -D- serine CAS No.:128107-47-1 Molecular Formula:
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