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-#-Ac507-250mg	Product Name:acetylsalicylic acid	CAS No.:50-78-2	Molecular Formula:
Product Number:PCL-#-So900-10mg	Product Name:Sodium carboxymethyl cellulose	CAS No.:9004-32-4	Molecular Formula:
Product Number:PCL-#-Tu800-1ml	Product Name:Turpentine	CAS No.:8006-64-2	Molecular Formula:
Product Number:PCL-#-Tr103-10mg	Product Name:Tribenzylglycosides	CAS No.:10310-32-4	Molecular Formula:
Product Number:PCL-#-De115-10mg	Product Name:Nortriptylenol	CAS No.:115063-39-3	Molecular Formula:
Product Number:PCL-#-He324-10mg	Product Name:heptafluorobutyrylimidazole	CAS No.:32477-35-3	Molecular Formula:
Product Number:PCL-#-He336-10mg	Product Name:heptafluorobutyric anhydride	CAS No.:336-59-4	Molecular Formula:
Product Number:PCL-#-Po684-10mg	Product Name:Polydextrose	CAS No.:68424-04-4	Molecular Formula:
Product Number:PCL-#-Me149-10mg	Product Name:Methyl-alpha-D-rhamnopyranoside	CAS No.:14917-55-6	Molecular Formula:
Product Number:PCL-#-Me802-10mg	Product Name:Methyl 2,3,4-tri-O-benzyl-β-L-thiopyranoside	CAS No.:107802-80-2	Molecular Formula:
Product Number:PCL-#-Ur114-20mg	Product Name:urolithin A	CAS No.:1143-70-0	Molecular Formula:
Product Number:PCL-#-Hl687-20mg	Product Name:Leucinamide	CAS No.:687-51-4	Molecular Formula:
Product Number:PCL-#-Gl598-20mg	Product Name:Glycinamide hydrochloride	CAS No.:1668-10-6	Molecular Formula:
Product Number:PCL-#-Me155-10mg	Product Name:methyl-1-thio-beta-D-galactoside	CAS No.:155-30-6	Molecular Formula:
Product Number:PCL-#-So204-5mg	Product Name:α-Sophorose monohydrate	CAS No.:20429-79-2	Molecular Formula:
Product Number:PCL-#-Ld160-250mg	Product Name:L-1,4-Dithiothreitol	CAS No.:16096-97-2	Molecular Formula:
Product Number:PCL-#-Al259-100mg	Product Name:D-(+)-Talose	CAS No.:2595-98-4	Molecular Formula:
Product Number:PCL-#-Su010-50mg	Product Name:Succinimidic acid	CAS No.:638-32-4	Molecular Formula:
Product Number:PCL-#-Ph021-1g	Product Name:Phenyl isothiocyanate	CAS No.:103-72-0	Molecular Formula:
Product Number:PCL-#-So010-50mg	Product Name:D-Sorbitol (g)	CAS No.:50-70-4	Molecular Formula: