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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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Hengyuan Fine Chemical—where precision becomes a habit and trust becomes a bond.


Product Number Image Product Name CAS No. Molecular Formula
Product Number:PCL-#-LH095-1g Unique flavor Product Name:Unique flavor CAS No.:#### Molecular Formula:
Product Number:100109 alpha-methylpyridine Product Name:alpha-methylpyridine CAS No.:109-06-8 Molecular Formula:
Product Number:100138 Methotrexate Product Name:Methotrexate CAS No.:100138-N/A Molecular Formula:
Product Number:420020 Imatinib mesylate Product Name:Imatinib mesylate CAS No.:# Molecular Formula:
Product Number:420023 Finasteride impurityⅠ Product Name:Finasteride impurityⅠ CAS No.:# Molecular Formula:
Product Number:121031 Deer antler (sika deer) Product Name:Deer antler (sika deer) CAS No.:# Molecular Formula:
Product Number:121032 Epimedium (Korean Epimedium) Product Name:Epimedium (Korean Epimedium) CAS No.:# Molecular Formula:
Product Number:PCL-#-CF307-1g Serpentine Product Name:Serpentine CAS No.:#### Molecular Formula:
Product Number:510046 Lansoprazole impurity I Product Name:Lansoprazole impurity I CAS No.:# Molecular Formula:
Product Number:100110 Phentolamine mesylate Product Name:Phentolamine mesylate CAS No.:65-28-1 Molecular Formula:
Product Number:510047 Lansoprazole Impurity II Product Name:Lansoprazole Impurity II CAS No.:# Molecular Formula:
Product Number:101440 Rosastat Product Name:Rosastat CAS No.:101440-N/A Molecular Formula:
Product Number:510044 Clopidogrel impurity II Product Name:Clopidogrel impurity II CAS No.:# Molecular Formula:
Product Number:510045 Clopidogrel impurity III Product Name:Clopidogrel impurity III CAS No.:# Molecular Formula:
Product Number:510040 Pramipexole impurity V Product Name:Pramipexole impurity V CAS No.:# Molecular Formula:
Product Number:510041 Pramipexole hydrochloride impurity IV Product Name:Pramipexole hydrochloride impurity IV CAS No.:# Molecular Formula:
Product Number:101427 Pralofen Product Name:Pralofen CAS No.:101427-N/A Molecular Formula:
Product Number:101426 Homopiperazine (fasudil hydrochloride impurity) Product Name:Homopiperazine (fasudil hydrochloride impurity) CAS No.:101426-N/A Molecular Formula:
Product Number:101425 Fasudil hydrochloride impurity A (fasudil dimer) Product Name:Fasudil hydrochloride impurity A (fasudil dimer) CAS No.:101425-N/A Molecular Formula:
Product Number:101422 Dextymolol maleate Product Name:Dextymolol maleate CAS No.:101422-N/A Molecular Formula:
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