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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:140832 3-amino-2-piperidone Product Name:3-amino-2-piperidone CAS No.:1892-22-4 Molecular Formula:
Product Number:140830 Thymofaxine impurityⅠ Product Name:Thymofaxine impurityⅠ CAS No.:# Molecular Formula:
Product Number:PCL-#-Ad122-20mg Adenosine Product Name:Adenosine CAS No.:61-19-8 Molecular Formula:
Product Number:140838 Enkephalin myocardial peptide Product Name:Enkephalin myocardial peptide CAS No.:# Molecular Formula:
Product Number:101259 Metaxalone Product Name:Metaxalone CAS No.:101259-N/A Molecular Formula:
Product Number:101256 4,4'-Bis-(3-methyl-1-phenyl-5-pyrazolone) (edaravone impurity) Product Name:4,4'-Bis-(3-methyl-1-phenyl-5-pyrazolone) (edaravone impurity) CAS No.:7477-67-0 Molecular Formula:
Product Number:101255 δ-elemene Product Name:δ-elemene CAS No.:20307-84-0 Molecular Formula:
Product Number:130624 Penicillamine disulfide Product Name:Penicillamine disulfide CAS No.:# Molecular Formula:
Product Number:130621 Rifaximin impurity B Product Name:Rifaximin impurity B CAS No.:# Molecular Formula:
Product Number:130620 Rifaximin impurity A Product Name:Rifaximin impurity A CAS No.:# Molecular Formula:
Product Number:101260 Paramivir trihydrate Product Name:Paramivir trihydrate CAS No.:1041434-82-5 Molecular Formula:
Product Number:101249 Oplinone hydrochloride Product Name:Oplinone hydrochloride CAS No.:101249-N/A Molecular Formula:
Product Number:101248 Entecavir Product Name:Entecavir CAS No.:101248-N/A Molecular Formula:
Product Number:101246 Pitavastatin calcium enantiomers Product Name:Pitavastatin calcium enantiomers CAS No.:101246-N/A Molecular Formula:
Product Number:101245 pitavastatin calcium Product Name:pitavastatin calcium CAS No.:147526-32-7 Molecular Formula:
Product Number:130619 Cefotaxime system suitability control Product Name:Cefotaxime system suitability control CAS No.:# Molecular Formula:
Product Number:130616 (left) Ofloxacin impurity E Product Name:(left) Ofloxacin impurity E CAS No.:N/A Molecular Formula:
Product Number:CMCC(B)40001 Fecal alkali-producing bacteria 40001 Product Name:Fecal alkali-producing bacteria 40001 CAS No.:# Molecular Formula:
Product Number:130615 (left) Ofloxacin impurity B Product Name:(left) Ofloxacin impurity B CAS No.:# Molecular Formula:
Product Number:130618 ampicillin system suitability control Product Name:ampicillin system suitability control CAS No.:# Molecular Formula:
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