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-#-Ph034-20mg	Product Name:phenylhydrazine; hydrazinobenzene	CAS No.:100-63-0	Molecular Formula:
Product Number:PCL-#-Ep003-1ml	Product Name:epichlorohydrin	CAS No.:106-89-8	Molecular Formula:
Product Number:PCL-#-Sa221-250mg	Product Name:Sorbic acid	CAS No.:110-44-1	Molecular Formula:
Product Number:1ST3407-100mg	Product Name:Phenyl benzoate	CAS No.:93-99-2	Molecular Formula:
Product Number:PCL-RM-D0003162	Product Name:Chloramphenicol	CAS No.:56-75-7	Molecular Formula:
Product Number:PCL-#-Br913-100mg	Product Name:Epizootic	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Pi0101-20mg	Product Name:2-piperidone	CAS No.:675-20-7	Molecular Formula:
Product Number:1ST5740-100mg	Product Name:Ofloxacin	CAS No.:82419-36-1	Molecular Formula:
Product Number:PCL-#-So005-20mg	Product Name:Sodium oxalate	CAS No.:62-76-0	Molecular Formula:
Product Number:PCL-#-Di103-50mg	Product Name:Diisopropylamine	CAS No.:108-18-9	Molecular Formula:
Product Number:PCL-#-La015-5g	Product Name:Lactic acid	CAS No.:50-21-5	Molecular Formula:
Product Number:PCL-#-Br0140-50mg	Product Name:4-bromo-1-butene	CAS No.:5162-44-7	Molecular Formula:
Product Number:PCL-#-Ch976-50mg	Product Name:Chloroacetic acid	CAS No.:79-11-8	Molecular Formula:
Product Number:PCL-#-P055-20mg	Product Name:Phenolphthalein	CAS No.:87-41-2	Molecular Formula:
Product Number:PCL-#-Pe005-1ml	Product Name:β-pinene	CAS No.:2437-95-8	Molecular Formula:
Product Number:PCL-#-Ch012-50mg	Product Name:o-Chlorobenzeneacetonitrile	CAS No.:2856-63-5	Molecular Formula:
Product Number:PCL-#-Am278-25mg	Product Name:Amitriptyline hydrochloride	CAS No.:549-18-8	Molecular Formula:
Product Number:1ST000770-100mg	Product Name:methyl benzoate	CAS No.:93-58-3	Molecular Formula:
Product Number:PCL-#-Bh125-100mg	Product Name:4-hydroxy-3-tert-butyl-anisole	CAS No.:121-00-6	Molecular Formula:
Product Number:PCL-#-Is043-100mg	Product Name:isonicotinamide	CAS No.:1453-82-3	Molecular Formula: