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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-#-Qu009-50mg Quetiapine fumarate impurity Product Name:Quetiapine fumarate impurity CAS No.:329216-67-3 Molecular Formula:
Product Number:130486 Clindamycin phosphate Product Name:Clindamycin phosphate CAS No.:# Molecular Formula:
Product Number:PCL-#-Do002-30mg Dobutamine EP impurity C Product Name:Dobutamine EP impurity C CAS No.:51062-14-7 Molecular Formula:
Product Number:PCL-#-Bz0259-50mg Biaxepenem impurity dimer I/impurity A Product Name:Biaxepenem impurity dimer I/impurity A CAS No.:1426393-68-1 Molecular Formula:
Product Number:PCL-#-Me0271-1g 4-Isobutylacetophenone Product Name:4-Isobutylacetophenone CAS No.:38861-78-8 Molecular Formula:
Product Number:PCL-#-Fm1021-20mg FMOC-D-4-chlorophenylalanine Product Name:FMOC-D-4-chlorophenylalanine CAS No.:142994-19-2 Molecular Formula:
Product Number:PCL-#-Br675-20mg 2-Bromoanisole Product Name:2-Bromoanisole CAS No.:578-57-4 Molecular Formula:
Product Number:PCL-#-Bz0390-50mg Ceflorin ester impurity 5/cephalodron Product Name:Ceflorin ester impurity 5/cephalodron CAS No.:953037-71-3 Molecular Formula:
Product Number:PCL-#-Bz0144-50mg 3-Hydroxy-3-phenylpropionitrile Product Name:3-Hydroxy-3-phenylpropionitrile CAS No.:17190-29-3 Molecular Formula:
Product Number:PCL-#-Bz0410-50mg Cefazolin EP impurity G/USP impurity I Product Name:Cefazolin EP impurity G/USP impurity I CAS No.:1172998-53-6 Molecular Formula:
Product Number:PCL-#-Li120-100mg Linezolid impurity LN-3-J Product Name:Linezolid impurity LN-3-J CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0038-50mg Pantoprazole impurity 10 Product Name:Pantoprazole impurity 10 CAS No.:368890-20-4 Molecular Formula:
Product Number:PCL-#-Lh031-25mg L-Tyrosine benzyl ester Product Name:L-Tyrosine benzyl ester CAS No.:52799-86-7 Molecular Formula:
Product Number:PCL-#-Bz0257-50mg Ofloxacin starting material SM2 impurity/ Ofloxacin impurity 869560 Product Name:Ofloxacin starting material SM2 impurity/ Ofloxacin impurity 869560 CAS No.:2241304-69-6 Molecular Formula:
Product Number:PCL-#-Ca383-50mg p-Chloroacetanilide Product Name:p-Chloroacetanilide CAS No.:539-03-7 Molecular Formula:
Product Number:PCL-#-Az987-100mg 4-(4-Chlorobenzyl)-1-(2H)-phthalazinone Product Name:4-(4-Chlorobenzyl)-1-(2H)-phthalazinone CAS No.:53242-88-9 Molecular Formula:
Product Number:PCL-#-Nt032-50mg Enalapril impurity B; N-[1-(S)-Ethoxycarbonyl-3-phenylpropyl]-L-alanine Product Name:Enalapril impurity B; N-[1-(S)-Ethoxycarbonyl-3-phenylpropyl]-L-alanine CAS No.:82717-96-2 Molecular Formula:
Product Number:PCL-#-Bz0187-50mg Domperidone impurity E Product Name:Domperidone impurity E CAS No.:1346602-50-3 Molecular Formula:
Product Number:PCL-#-Li022-120mg Ritarestat impurity 8 Product Name:Ritarestat impurity 8 CAS No.:2271299-08-0 Molecular Formula:
Product Number:PCL-#-Lp100-20mg L-Proline(Cardopril Impurity K) Product Name:L-Proline(Cardopril Impurity K) CAS No.:147-85-3 Molecular Formula:
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