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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-#-De822-20mg Celecoxib impurity D Product Name:Celecoxib impurity D CAS No.:1061214-06-9 Molecular Formula:
Product Number:PCL-#-De821-20mg Celecoxib impurity 3 Product Name:Celecoxib impurity 3 CAS No.:170569-99-0 Molecular Formula:
Product Number:PCL-#-Mi023-100mg Melogabalin impurity 15 Product Name:Melogabalin impurity 15 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Di113-100mg Edaravone P1 impurity Product Name:Edaravone P1 impurity CAS No.:1357477-99-6 Molecular Formula:
Product Number:PCL-#-Ox015-50mg 6,6'oxobis(2-naphthalenesulfonic acid disodium salt) Product Name:6,6'oxobis(2-naphthalenesulfonic acid disodium salt) CAS No.:61551-82-4 Molecular Formula:
Product Number:PCL-#-Ar092-50mg 3-(Chloromethyl)-1,2,4-triazolin-5-one Product Name:3-(Chloromethyl)-1,2,4-triazolin-5-one CAS No.:252742-72-6 Molecular Formula:
Product Number:PCL-#-Tr024-50mg Tranexamic acid p-toluenesulfonate Product Name:Tranexamic acid p-toluenesulfonate CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Tr023-50mg Tranexamic acid impurities Product Name:Tranexamic acid impurities CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Et044-250mg 3-oethylascorbic acid Product Name:3-oethylascorbic acid CAS No.:86404-04-8 Molecular Formula:
Product Number:PCL-#-Ys019-25mg Impurity 1 (bromhexine glucose ring-closing impurity) Product Name:Impurity 1 (bromhexine glucose ring-closing impurity) CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Az136-100mg Azelastine impurity NSM2-I4 Product Name:Azelastine impurity NSM2-I4 CAS No.:787-84-8 Molecular Formula:
Product Number:PCL-#-Az135-100mg Azoxystrobin-N-oxide A Product Name:Azoxystrobin-N-oxide A CAS No.:1346617-18-2 Molecular Formula:
Product Number:PCL-#-Az134-100mg Azelastine impurity (TM-I3) Product Name:Azelastine impurity (TM-I3) CAS No.:1346617-06-8 Molecular Formula:
Product Number:PCL-RM0080-100mg Epalrestat impurity 43 Product Name:Epalrestat impurity 43 CAS No.:116636-84-1 Molecular Formula:
Product Number:PCL-#-Ra024-50mg Raltitrexed Product Name:Raltitrexed CAS No.:112887-68-0 Molecular Formula:
Product Number:PCL-#-Ra026-100mg Raltitrexed optical isomers Product Name:Raltitrexed optical isomers CAS No.:1042419-89-5 Molecular Formula:
Product Number:PCL-#-Ra025-20mg Raltitrexed impurity K Product Name:Raltitrexed impurity K CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Be035-500g Benzofuran-6-carboxylic acid Product Name:Benzofuran-6-carboxylic acid CAS No.:77095-51-3 Molecular Formula:
Product Number:PCL-#-Ce106-1g Celecoxib impurity H Product Name:Celecoxib impurity H CAS No.:170570-09-9 Molecular Formula:
Product Number:PCL-#-SU732-250mg Potassium sucrose octasulphate,98% Product Name:Potassium sucrose octasulphate,98% CAS No.:73264-44-5 Molecular Formula:
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