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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: AMOZ Product Name:AMOZ CAS No.:43056-63-9 Molecular Formula:
Product Number: 2‑NP‑AMOZ Product Name:2‑NP‑AMOZ CAS No.:183193-59-1 Molecular Formula:
Product Number: 2‑NP‑AMOZ‑D5 Product Name:2‑NP‑AMOZ‑D5 CAS No.:1173097-59-0 Molecular Formula:
Product Number: 2‑NP‑AOZ‑D4 Product Name:2‑NP‑AOZ‑D4 CAS No.:1007478-57-0 Molecular Formula:
Product Number: 2‑NP‑AOZ Product Name:2‑NP‑AOZ CAS No.:19687-73-1 Molecular Formula:
Product Number: 2-NP-AHD-13C3 Product Name:2-NP-AHD-13C3 CAS No.:1007476-86-9 Molecular Formula:
Product Number: AOZ Product Name:AOZ CAS No.:80-65-9 Molecular Formula:
Product Number: 2‑NP‑AHD Product Name:2‑NP‑AHD CAS No.:623145-57-3 Molecular Formula:
Product Number: SEM Product Name:SEM CAS No.:563-41-7 Molecular Formula:
Product Number: AHD(1-Aminohydantoin hydrochloride) Product Name:AHD(1-Aminohydantoin hydrochloride) CAS No.:2827-56-7 Molecular Formula:
Product Number: Demeclocycline HCl Product Name:Demeclocycline HCl CAS No.:64-73-3 Molecular Formula:
Product Number: Narasin Product Name:Narasin CAS No.:55134-13-9 Molecular Formula:
Product Number: Toltrazuril Product Name:Toltrazuril CAS No.:69004-03-1 Molecular Formula:
Product Number: Amprolium hydrochloride Product Name:Amprolium hydrochloride CAS No.:137-88-2 Molecular Formula:
Product Number: Monensin sodium salt Product Name:Monensin sodium salt CAS No.:22373-78-0 Molecular Formula:
Product Number: Colistin Sulfate (mixture A+B) Product Name:Colistin Sulfate (mixture A+B) CAS No.:1264-72-8 Molecular Formula:
Product Number: HMMNI Product Name:HMMNI CAS No.:936-05-0 Molecular Formula:
Product Number: HMMNI‑D3 Product Name:HMMNI‑D3 CAS No.:1015855-78-3 Molecular Formula:
Product Number: Ronidazole Product Name:Ronidazole CAS No.:7681-76-7 Molecular Formula:
Product Number: Ipronidazole‑D3 Product Name:Ipronidazole‑D3 CAS No.:1015855-83-0 Molecular Formula:
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