Hengyuan Fine Chemical | Reference Materials and Standards | 50,000+ Ready-to-Ship, High-Precision Solutions

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	Product Name	CAS No.	Molecular Formula
Product Number:GBW(E)082053	Product Name:Total Organic Carbon (TOC) in water	CAS No.:/	Molecular Formula:
Product Number:PCL-2024BZ401	Product Name:Selenium standard solution	CAS No.:N/A	Molecular Formula:
Product Number:BW20058-1000-50	Product Name:Nitrogen dioxide in water (as NO2)	CAS No.:/	Molecular Formula:
Product Number:PCL-2023BZ1105-100ml	Product Name:Chlorine dioxide solution standard substance	CAS No.:N/A	Molecular Formula:
Product Number:BW900555-100-M	Product Name:Benz(a)anthracene in dichloromethane	CAS No.:56-55-3	Molecular Formula:
Product Number:93203a	Product Name:Benzo[b]fluoranthene in dichloromethane	CAS No.:205-99-2	Molecular Formula:
Product Number:GSB 04-2834-2011-20ml	Product Name:Standard solution of iodide (iodide)	CAS No.:/	Molecular Formula:
Product Number:BW081603-2	Product Name:Standard substance for sodium hydroxide solution for volumetric analysis	CAS No.:1310-73-2	Molecular Formula:
Product Number:727855-100mg	Product Name:n-propyl acrylate	CAS No.:925-60-0	Molecular Formula:
Product Number:72255-1g	Product Name:n-nonane	CAS No.:111-84-2	Molecular Formula:
Product Number:77081-100mg	Product Name:isopentane	CAS No.:78-78-4	Molecular Formula:
Product Number:PCL-#-I249-20mg	Product Name:Isophorone	CAS No.:78-59-1	Molecular Formula:
Product Number:PCL-#-Et095-100mg	Product Name:ethyl acetate	CAS No.:141-78-6	Molecular Formula:
Product Number:72481-100mg	Product Name:methyl acetate	CAS No.:79-20-9	Molecular Formula:
Product Number:716851-100mg	Product Name:ethylene glycol diacetate	CAS No.:111-55-7	Molecular Formula:
Product Number:71779-1g	Product Name:Ethylbenzene	CAS No.:100-41-4	Molecular Formula:
Product Number:71955-1g	Product Name:perchloroethylene	CAS No.:127-18-4	Molecular Formula:
Product Number:715875-100mg	Product Name:carbon tetrachloride	CAS No.:56-23-5	Molecular Formula:
Product Number:72397-250mg	Product Name:ethyl formate	CAS No.:109-94-4	Molecular Formula:
Product Number:PCL-#-Me109-1ml	Product Name:methyl formate	CAS No.:107-31-3	Molecular Formula:

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