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:100345		Product Name:Carteolol hydrochloride	CAS No.:100345-N/A	Molecular Formula:
Product Number:100343		Product Name:Tolazoline hydrochloride	CAS No.:100343-N/A	Molecular Formula:
Product Number:121266		Product Name:Brother King	CAS No.:#	Molecular Formula:
Product Number:121267		Product Name:Boomerang back	CAS No.:#	Molecular Formula:
Product Number:E-008-10		Product Name:Bacterial endotoxin working standard (box)	CAS No.:N/A	Molecular Formula:
Product Number:121264		Product Name:Plantain root	CAS No.:#	Molecular Formula:
Product Number:121265		Product Name:Hive	CAS No.:#	Molecular Formula:
Product Number:150603		Product Name:national reference material for horseshoe crab reagents	CAS No.:#	Molecular Formula:
Product Number:150602		Product Name:Bacterial endotoxin boutique	CAS No.:#	Molecular Formula:
Product Number:150605		Product Name:National Standard for Bacterial Endotoxin (for activated carbon adsorption test)	CAS No.:#	Molecular Formula:
Product Number:121268		Product Name:Purple-flowered azalea	CAS No.:#	Molecular Formula:
Product Number:150604		Product Name:National Standard for Bacterial Endotoxins (for verification of dry heat inactivation)	CAS No.:#	Molecular Formula:
Product Number:121269		Product Name:Lanzan Fine Cinema (Lanzanhua)	CAS No.:#	Molecular Formula:
Product Number:150607		Product Name:National Standard for Bacterial Endotoxin (for non-water-soluble samples)	CAS No.:#	Molecular Formula:
Product Number:121270		Product Name:Soprano rice	CAS No.:#	Molecular Formula:
Product Number:121273		Product Name:Pork bile powder	CAS No.:#	Molecular Formula:
Product Number:PCL-#-As458-1g		Product Name:Agaricus	CAS No.:####	Molecular Formula:
Product Number:121271		Product Name:sepiola	CAS No.:#	Molecular Formula:
Product Number:PCL-#-Pi321-2g		Product Name:Half-Summer	CAS No.:####	Molecular Formula:
Product Number:100352		Product Name:Carmofur	CAS No.:100352-N/A	Molecular Formula:

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