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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-#-De025-50mg Dexamethasone impurity 2 Product Name:Dexamethasone impurity 2 CAS No.:84449-15-0 Molecular Formula:
Product Number:PCL-#-Fu004-25mg Furosemide EP impurity B Product Name:Furosemide EP impurity B CAS No.:2736-23-4 Molecular Formula:
Product Number:PCL-#-Pr022-50mg Pranoprofen impurity F Product Name:Pranoprofen impurity F CAS No.:N/A Molecular Formula:
Product Number:PCL-#-AZ0919-50mg Azithromycin EP impurity G Product Name:Azithromycin EP impurity G CAS No.:612069-31-5 Molecular Formula:
Product Number:PCL-#-Mo117-20mg Benzimidazole Product Name:Benzimidazole CAS No.:51-17-2 Molecular Formula:
Product Number:PCL-#-Ii106-50mg Ibuprofen EP impurity K Product Name:Ibuprofen EP impurity K CAS No.:43153-07-7 Molecular Formula:
Product Number:PCL-#-Hy012-50mg Scopolamine butylbromide impurity E Product Name:Scopolamine butylbromide impurity E CAS No.:22235-98-9 Molecular Formula:
Product Number:PCL-#-U374-50mg Ursodeoxycholic acid; 3α,7β-dihydroxy-5β-cholic-24-oleic acid; Ursodeoxycholic acid Product Name:Ursodeoxycholic acid; 3α,7β-dihydroxy-5β-cholic-24-oleic acid; Ursodeoxycholic acid CAS No.:128-13-2 Molecular Formula:
Product Number:PCL-#-To041-100mg Tofacitinib impurity L Product Name:Tofacitinib impurity L CAS No.:2028267-73-2 Molecular Formula:
Product Number:PCL-#-Bz0435-50mg Aztreonam impurity A Product Name:Aztreonam impurity A CAS No.:102586-36-7 Molecular Formula:
Product Number:PCL-#-Pr028-25mg Pranoprofen impurity 1 Product Name:Pranoprofen impurity 1 CAS No.:52549-19-6 Molecular Formula:
Product Number:PCL-#-Qu004-50mg Quetiapine EP impurity D Product Name:Quetiapine EP impurity D CAS No.:945668-94-0 Molecular Formula:
Product Number:PCL-#-Bz0232-50mg Atorvastatin 3-oxo impurity Product Name:Atorvastatin 3-oxo impurity CAS No.:887196-30-7 Molecular Formula:
Product Number:PCL-#-Br011-100mg Brivaracetam impurity 11 Product Name:Brivaracetam impurity 11 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Is103 Isopropyl-beta-D-thiogalactopyranoside Product Name:Isopropyl-beta-D-thiogalactopyranoside CAS No.:367-93-1 Molecular Formula:
Product Number:PCL-#-Bz0395-50mg Cefmetazole impurity 3 Product Name:Cefmetazole impurity 3 CAS No.:70993-70-3 Molecular Formula:
Product Number:PCL-#-Bi072-20mg 5-bromo-2-iodotoluene Product Name:5-bromo-2-iodotoluene CAS No.:116632-39-4 Molecular Formula:
Product Number:PCL-#-EA357-25mg ethylenediamine-N,N'-diacetic acid Product Name:ethylenediamine-N,N'-diacetic acid CAS No.:5657-17-0 Molecular Formula:
Product Number:PCL-#-At010-10mg Atorvastatin calcium impurity 84 Product Name:Atorvastatin calcium impurity 84 CAS No.:873950-17-5 Molecular Formula:
Product Number:PCL-#-Az534-10mg Azithromycin impurity N Product Name:Azithromycin impurity N CAS No.:612069-25-7 Molecular Formula:
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