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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: Oxytetracycline hydrochloride Product Name:Oxytetracycline hydrochloride CAS No.:2058-46-0 Molecular Formula:
Product Number: Chlorotetracycline hydrochloride Product Name:Chlorotetracycline hydrochloride CAS No.:64-72-2 Molecular Formula:
Product Number: Dapsone Product Name:Dapsone CAS No.:80-08-0 Molecular Formula:
Product Number: Benzylpenicilline‑D7 N‑ethylpiperidinium salt Product Name:Benzylpenicilline‑D7 N‑ethylpiperidinium salt CAS No.:1217445-37-8 Molecular Formula:
Product Number: Cefapirin Product Name:Cefapirin CAS No.:21593-23-7 Molecular Formula:
Product Number: Penicilline G potassium salt Product Name:Penicilline G potassium salt CAS No.:113-98-4 Molecular Formula:
Product Number: Penicilline V potassium Product Name:Penicilline V potassium CAS No.:132-98-9 Molecular Formula:
Product Number: Nafcillin sodium salt monohydrate Product Name:Nafcillin sodium salt monohydrate CAS No.:7177-50-6 Molecular Formula:
Product Number: Cloxacillin Sodium Salt Monohydrate Product Name:Cloxacillin Sodium Salt Monohydrate CAS No.:7081-44-9 Molecular Formula:
Product Number: Dicloxacillin sodium salt monohydrate Product Name:Dicloxacillin sodium salt monohydrate CAS No.:13412-64-1 Molecular Formula:
Product Number: Amoxicillin trihydrate Product Name:Amoxicillin trihydrate CAS No.:61336-70-7 Molecular Formula:
Product Number: Ampicillin trihydrate Product Name:Ampicillin trihydrate CAS No.:7177-48-2 Molecular Formula:
Product Number: Florfenicol Product Name:Florfenicol CAS No.:73231-34-2 Molecular Formula:
Product Number: Florfenicol amine Product Name:Florfenicol amine CAS No.:76639-93-5 Molecular Formula:
Product Number: Thiamphenicol Product Name:Thiamphenicol CAS No.:15318-45-3 Molecular Formula:
Product Number: Sulfathiazole-[13C6] Product Name:Sulfathiazole-[13C6] CAS No.:1196157-72-8 Molecular Formula:
Product Number: Sulfathiazole-13C6 Product Name:Sulfathiazole-13C6 CAS No.:1196157-72-8 Molecular Formula:
Product Number: Sulfachinoxalin Product Name:Sulfachinoxalin CAS No.:59-40-5 Molecular Formula:
Product Number: Sulfamerazine Product Name:Sulfamerazine CAS No.:127-79-7 Molecular Formula:
Product Number: Melamine‑13C3 Product Name:Melamine‑13C3 CAS No.:1173022-88-2 Molecular Formula:
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