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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-#-Ap006-50mg Apixaban Impurity 116 Product Name:Apixaban Impurity 116 CAS No.:1998079-16-5 Molecular Formula:
Product Number:PCL-#-De039-100mg Rocuronium bromide impurity VI Product Name:Rocuronium bromide impurity VI CAS No.:1190105-67-9 Molecular Formula:
Product Number:PCL-#-De064-20mg Ursodeoxycholic acid EP impurity E Product Name:Ursodeoxycholic acid EP impurity E CAS No.:83-44-3 Molecular Formula:
Product Number:PCL-#-U374-20mg Ursodeoxycholic acid; Product Name:Ursodeoxycholic acid; CAS No.:128-13-2 Molecular Formula:
Product Number:111510 Guaiacol Product Name:Guaiacol CAS No.:90-05-1 Molecular Formula:
Product Number:PCL-#-C1364-100mg Ursodeoxycholic acid EP impurity B Product Name:Ursodeoxycholic acid EP impurity B CAS No.:81-25-4 Molecular Formula:
Product Number:121238 stevia Product Name:stevia CAS No.:# Molecular Formula:
Product Number:PCL-#-F1272-50mg Fumaric acid Product Name:Fumaric acid CAS No.:110-17-8 Molecular Formula:
Product Number:PCL-#-Ci327-0.5ml trans-Cinnamaldehyde Product Name:trans-Cinnamaldehyde CAS No.:14371-10-9 Molecular Formula:
Product Number:PCL-#-Az533-10mg Azithromycin impurity M Product Name:Azithromycin impurity M CAS No.:765927-71-7 Molecular Formula:
Product Number:PCL-#-Ur104-25mg Ursodeoxycholic acid EP impurity I; 5β-cholan-3α,7β,24 triol Product Name:Ursodeoxycholic acid EP impurity I; 5β-cholan-3α,7β,24 triol CAS No.:130593-75-8 Molecular Formula:
Product Number:PCL-#-Bz0110-50mg Chlorpheniramine impurity S Product Name:Chlorpheniramine impurity S CAS No.:N/A Molecular Formula:
Product Number:PCL-#-At102-100mg Atropine EP impurity D Product Name:Atropine EP impurity D CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Fl017-50mg Fmoc-His(Trt)-His(Trt)-OH Product Name:Fmoc-His(Trt)-His(Trt)-OH CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Tr122-50mg Trifluoperazine hydrochloride Product Name:Trifluoperazine hydrochloride CAS No.:440-17-5 Molecular Formula:
Product Number:100599 Ambroxol hydrochloride Product Name:Ambroxol hydrochloride CAS No.:23828-92-4 Molecular Formula:
Product Number:PCL-#-El002-100mg Etiracetam Product Name:Etiracetam CAS No.:33996-58-6 Molecular Formula:
Product Number:PCL-#-To028-50mg Butyl 3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanoate (tofacitib impurity 26) Product Name:Butyl 3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanoate (tofacitib impurity 26) CAS No.:2227199-31-5 Molecular Formula:
Product Number:PCL-#-Ch073-25mg 1-(4-Chloro-phenyl)-3-dimethylamino-1-pyridin-2-yl-propan-1-ol (impurity O) Product Name:1-(4-Chloro-phenyl)-3-dimethylamino-1-pyridin-2-yl-propan-1-ol (impurity O) CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0012-50mg Lipoic acid monooxide impurity 1 Product Name:Lipoic acid monooxide impurity 1 CAS No.:2114407-76-8 Molecular Formula:
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