Products

Analytical reference standards

How to Choose an Analytical Reference Standard Supplier？

Analytical reference standards are critical components of quality assurance in laboratories. These standards are defined and supplied by manufacturers with accompanying Certificates of Analysis (COA). Key factors to consider when selecting a supplier include purity, stability, traceability, applicability, and supplier credibility. Analytical standards must exhibit high purity to ensure accuracy and reliability in test results. Additionally, they should maintain stability over time, preserving their chemical properties and concentration under specified storage conditions.

Hengyuan Fine Chemical’s PCL Brand
PCL, produced by Sichuan Purechemland Reference Materials Co., Ltd., is a trusted supplier of analytical reference standards. As a National Reference Material Development Unit, China Chemical Reagent Industry Association member, and AAA Credit Enterprise, PCL operates with full certifications:

CNAS accreditation
ISO 17034:2016 (Reference Material Producer certification)
ISO 9001:2015 (Quality Management System for R&D and sales)
Multiple independent intellectual property rights

Equipped with advanced analytical instruments (e.g., LC, LC-MS, GC, NMR, IR spectroscopy, automatic potentiometric titrators, UV spectrophotometers), PCL ensures homogeneous materials, precisely characterized values, and COA-certified products，Purity≥99%. We offer custom synthesis services, factory-direct pricing, stable supply chains, and dedicated post-sales support.

Product Number	Product Name	CAS No.	Molecular Formula
Product Number:PCL-#-Ph667-100mg	Product Name:1,10-Phenanthroline anhydrous	CAS No.:66-71-7	Molecular Formula:
Product Number:PCL-#-He900-100mg	Product Name:Hemoglobin	CAS No.:9008-02-0	Molecular Formula:
Product Number:PCL-#-Am510-100mg	Product Name:Ammonium pyrrolidine dithiocarbonate	CAS No.:5108-96-3	Molecular Formula:
Product Number:PCL-#-Di771-100mg	Product Name:2.3 diaminonaphthalene	CAS No.:771-97-1	Molecular Formula:
Product Number:PCL-#-Am536-100mg	Product Name:N,N Dimethyl-p-phenylenediamine dihydrochloride	CAS No.:536-46-9	Molecular Formula:
Product Number:PCL-#-Th838-20mg	Product Name:Thymol	CAS No.:89-83-8	Molecular Formula:
Product Number:PCL-#-Me962 -100mg	Product Name:Thioglycerol	CAS No.:96-27-5	Molecular Formula:
Product Number:PCL-#-Mo110-100mg	Product Name:Morpholine	CAS No.:110-91-8	Molecular Formula:
Product Number:PCL-#-Av091-500mg	Product Name:Avobenzone	CAS No.:70356-09-1	Molecular Formula:
Product Number:PCL-#-T257-25mg	Product Name:lindenoside	CAS No.:20316-62-5	Molecular Formula:
Product Number:PCL-#-531-50mg	Product Name:Methyl 3-hydroxy-2-phenylpropionate	CAS No.:3967-53-1	Molecular Formula:
Product Number:PCL-#-417-50mg	Product Name:methyl phenylacetate	CAS No.:101-41-7	Molecular Formula:
Product Number:PCL-#-Ju041-25mg	Product Name:Ziziphus jujuba saponin B,≥98% Chinese medicine analytical standard	CAS No.:55466-05-2	Molecular Formula:
Product Number:PCL-2023BZ1094-1ml	Product Name:Calcium propionate	CAS No.:4075-81-4	Molecular Formula:
Product Number:PCL-Me105-5ml	Product Name:N-methyldiethanolamine	CAS No.:105-59-9	Molecular Formula:
Product Number:PCL-#-Me058-1ml	Product Name:propylene glycol methyl ether	CAS No.:107-98-2	Molecular Formula:
Product Number:PCL-#-Et012-100mg	Product Name:Relying on Cauchy	CAS No.:202409-33-4	Molecular Formula:
Product Number:PCL-#-Ti385-100mg	Product Name:2,2,2-Trifluoroethyl trifluoroethyl ester	CAS No.:407-38-5	Molecular Formula:
Product Number:PCL-#-Bi368-100mg	Product Name:2,2,2-trifluoroethyl ether	CAS No.:333-36-8	Molecular Formula:
Product Number:PCL-#-Am284-100mg	Product Name:D-aminopropanol	CAS No.:35320-23-1	Molecular Formula: