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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:420054 Potassium otilazepate Product Name:Potassium otilazepate CAS No.:# Molecular Formula:
Product Number:420055 Sodium azulene sulfonate Product Name:Sodium azulene sulfonate CAS No.:# Molecular Formula:
Product Number:420056 Sodium azulene sulfonate impurity I Product Name:Sodium azulene sulfonate impurity I CAS No.:# Molecular Formula:
Product Number:420050 Capecitabine impurity C Product Name:Capecitabine impurity C CAS No.:# Molecular Formula:
Product Number:420051 Anastrozole impurity I Product Name:Anastrozole impurity I CAS No.:# Molecular Formula:
Product Number:420052 Anastrozole impurity IV Product Name:Anastrozole impurity IV CAS No.:# Molecular Formula:
Product Number:PCL-#-Me021-20mg Peppermint oil Product Name:Peppermint oil CAS No.:68917-18-0 Molecular Formula:
Product Number:PCL-#-M1051-20mg Ninhydrinone Product Name:Ninhydrinone CAS No.:19668-69-0 Molecular Formula:
Product Number:111553 Ginseng stem and leaf saponins Product Name:Ginseng stem and leaf saponins CAS No.:111553-N/A Molecular Formula:
Product Number:PCL-#-Ca018-20mg Craniospermopsin Product Name:Craniospermopsin CAS No.:479-91-4 Molecular Formula:
Product Number:PCL-#-Ir116-20mg Sub-nocturnal iris flavin Product Name:Sub-nocturnal iris flavin CAS No.:41743-73-1 Molecular Formula:
Product Number:111558 Lung hemosiderin B Product Name:Lung hemosiderin B CAS No.:111558-N/A Molecular Formula:
Product Number:100844 Flunarizine hydrochloride Product Name:Flunarizine hydrochloride CAS No.:30484-77-6 Molecular Formula:
Product Number:100843 Clomipramine hydrochloride Product Name:Clomipramine hydrochloride CAS No.:100843-N/A Molecular Formula:
Product Number:100842 Urapidil hydrochloride Product Name:Urapidil hydrochloride CAS No.:100842-N/A Molecular Formula:
Product Number:100841 Difenidol hydrochloride Product Name:Difenidol hydrochloride CAS No.:100841-N/A Molecular Formula:
Product Number:100840 Meclofenoxate hydrochloride Product Name:Meclofenoxate hydrochloride CAS No.:100840-N/A Molecular Formula:
Product Number:121760 Tulip (Turmeric) Product Name:Tulip (Turmeric) CAS No.:NA Molecular Formula:
Product Number:100849 Estrone Product Name:Estrone CAS No.:100849-N/A Molecular Formula:
Product Number:PCL-#-Ce009-1g Celosia argentea Product Name:Celosia argentea CAS No.:#### Molecular Formula:
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