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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-#-Op167-50mg Octanoylbenzene Product Name:Octanoylbenzene CAS No.:1674-37-9 Molecular Formula:
Product Number:PCL-#-V033-50mg Vonorazan fumarate impurity 12 Product Name:Vonorazan fumarate impurity 12 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0024-50mg meso-hydroxylamine positional isomers Product Name:meso-hydroxylamine positional isomers CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Vo113-50mg Vonorazan fumarate impurity 11 Product Name:Vonorazan fumarate impurity 11 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Di0029-50mg Methyl 2,4-dichlorophenylacetate Product Name:Methyl 2,4-dichlorophenylacetate CAS No.:55954-23-9 Molecular Formula:
Product Number:PCL-#-Mo108-25mg Moxifloxacin Impurity 10; Ethyl 1-cyclopropyl-8-ethoxy-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate Product Name:Moxifloxacin Impurity 10; Ethyl 1-cyclopropyl-8-ethoxy-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate CAS No.:172602-83-4 Molecular Formula:
Product Number:PCL-#-Me040-25mg Moxifloxacin impurity C Product Name:Moxifloxacin impurity C CAS No.:1029364-75-7 Molecular Formula:
Product Number:PCL-#-Do042-50mg 5,6-Dimethyl-1-indone Product Name:5,6-Dimethyl-1-indone CAS No.:16440-97-4 Molecular Formula:
Product Number:PCL-#-Am397-100mg 1-amino-4-cyclopentylpiperazine Product Name:1-amino-4-cyclopentylpiperazine CAS No.:61379-64-4 Molecular Formula:
Product Number:PCL-#-Os138-100mg Omeprazole impurity 10 Product Name:Omeprazole impurity 10 CAS No.:158812-85-2 Molecular Formula:
Product Number:100543 Venlafaxine hydrochloride Product Name:Venlafaxine hydrochloride CAS No.:99300-78-4 Molecular Formula:
Product Number:PCL-#-Fi101-50mg Fasudil impurity 2 Product Name:Fasudil impurity 2 CAS No.:1352414-81-3 Molecular Formula:
Product Number:PCL-#-He0653-50mg 1,1,1,3,3,3 hexamethyldisilazane Product Name:1,1,1,3,3,3 hexamethyldisilazane CAS No.:999-97-3 Molecular Formula:
Product Number:PCL-#-Cp105-50mg Clindamycin phosphate impurity L(7 epiclindamycin phosphate) Product Name:Clindamycin phosphate impurity L(7 epiclindamycin phosphate) CAS No.:620181-05-7 Molecular Formula:
Product Number:PCL-#-Na2341-50mg 4- amino -1- naphthalene sulfonic acid Product Name:4- amino -1- naphthalene sulfonic acid CAS No.:84-86-6 Molecular Formula:
Product Number:PCL-#-Br045-20mg 4,5- Didehydrobrimonidine (EP impurity F) Product Name:4,5- Didehydrobrimonidine (EP impurity F) CAS No.:151110-15-5 Molecular Formula:
Product Number:PCL-#-Bz0243-50mg Acyclovir EP impurity j Product Name:Acyclovir EP impurity j CAS No.:166762-90-9 Molecular Formula:
Product Number:PCL-#-Bz0171-50mg Diltiazem acetyl and lactam double hydrolysis products Product Name:Diltiazem acetyl and lactam double hydrolysis products CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0426-50mg Nifedipine impurity g Product Name:Nifedipine impurity g CAS No.:74378-10-2 Molecular Formula:
Product Number:PCL-#-Di155-100mg 2,4- dimethylaniline Product Name:2,4- dimethylaniline CAS No.:95-68-1 Molecular Formula:
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