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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.

With a craftsmanship spirit at our core, we are committed to refining every product to ensure its quality and accuracy. At the same time, we understand customer needs through in-depth communication, providing customized solutions and fast delivery services to support the efficient progress of your projects.

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


Product Number Image Product Name 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:
Product Number:130617 1-methyl-5-mercaptotetrazole Product Name:1-methyl-5-mercaptotetrazole CAS No.:13183-79-4 Molecular Formula:
Product Number:130612 Cefazolin impurity A Product Name:Cefazolin impurity A CAS No.:# Molecular Formula:
Product Number:130611 Norfloxacin impurity B Product Name:Norfloxacin impurity B CAS No.:# Molecular Formula:
Product Number:130614 (left) Ofloxacin impurity A Product Name:(left) Ofloxacin impurity A CAS No.:# Molecular Formula:
Product Number:130613 Cefazolin impurity E Product Name:Cefazolin impurity E CAS No.:# Molecular Formula:
Product Number:101253 Apatinib mesylate Product Name:Apatinib mesylate CAS No.:101253-N/A Molecular Formula:
Product Number:130610 Norfloxacin impurity A Product Name:Norfloxacin impurity A CAS No.:# Molecular Formula:
Product Number:101279 3-Amino-7-methanesulfonamido-6-phenoxy-4H-1-benzofuran-4-one (Eramod impurity M10) Product Name:3-Amino-7-methanesulfonamido-6-phenoxy-4H-1-benzofuran-4-one (Eramod impurity M10) CAS No.:101279-N/A Molecular Formula:
Product Number:101278 Febuxostat Product Name:Febuxostat CAS No.:101278-N/A Molecular Formula:
Product Number:101277 ▲ Sodium bisulfite Product Name:▲ Sodium bisulfite CAS No.:7631-90-5 Molecular Formula:
Product Number:130609 Azithromycin system suitability control Product Name:Azithromycin system suitability control CAS No.:130609-# Molecular Formula:
Product Number:130608 Amoxicillin system suitability control Product Name:Amoxicillin system suitability control CAS No.:# Molecular Formula:
Product Number:130605 Ciprofloxacin impurity I Product Name:Ciprofloxacin impurity I CAS No.:# Molecular Formula:
Product Number:130604 Ciprofloxacin impurity E Product Name:Ciprofloxacin impurity E CAS No.:# Molecular Formula:
Product Number:130606 Penicillin system suitability control Product Name:Penicillin system suitability control CAS No.:# Molecular Formula:
Product Number:130601 Ciprofloxacin impurity B Product Name:Ciprofloxacin impurity B CAS No.:# Molecular Formula:
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