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-#-Cy083-25mg	Product Name:Dicyandiamine (dicyanamide)	CAS No.:461-58-5	Molecular Formula:
Product Number:PCL-#-Di2342-50mg	Product Name:Disodium 2-naphthol-3,6-disulfonate	CAS No.:135-51-3	Molecular Formula:
Product Number:PCL-#-Ma009-20mg	Product Name:D-mannitol	CAS No.:69-65-8	Molecular Formula:
Product Number:PCL-#-Hy047-50mg	Product Name:5-hydroxymethylfurfural	CAS No.:67-47-0	Molecular Formula:
Product Number:PCL-#-Gl004-100g	Product Name:tert-Butyl glycinate	CAS No.:6456-74-2	Molecular Formula:
Product Number:PCL-#-Aa035-100mg	Product Name:Acetic anhydride	CAS No.:108-24-7	Molecular Formula:
Product Number:PCL-#-E431-5ml	Product Name:Ethylene oxide	CAS No.:75-21-8	Molecular Formula:
Product Number:PCL-E-013-100ml	Product Name:Ethanol	CAS No.:64-17-5	Molecular Formula:
Product Number:PCL-#-Py379-100mg	Product Name:Pyrazine	CAS No.:290-37-9	Molecular Formula:
Product Number:PCL-#-Sa100 -50mg	Product Name:Sodium acetate (sodium acetate)	CAS No.:127-09-3	Molecular Formula:
Product Number:PCL-#-Ds105-50mg	Product Name:dibutyl sulfate	CAS No.:625-22-9	Molecular Formula:
Product Number:PCL-#-Fs003-100mg	Product Name:Furfural	CAS No.:98-01-1	Molecular Formula:
Product Number:1ST000892-100mg	Product Name:mercaptoacetic acid	CAS No.:68-11-1	Molecular Formula:
Product Number:PCL-#-Is325-100mg	Product Name:isomalt ketone sugar alcohol	CAS No.:64519-82-0	Molecular Formula:
Product Number:PCL-#-Fu021-100mg	Product Name:Furfuryl alcohol	CAS No.:98-00-0	Molecular Formula:
Product Number:PCL-BE503-100mg	Product Name:Benzo[a]pyrene standard substance	CAS No.:50-32-8	Molecular Formula:
Product Number:PCL-#-Is044-50mg	Product Name:4-Cyanopyridine	CAS No.:100-48-1	Molecular Formula:
Product Number:PCL-#-Is046-25mg	Product Name:Isonicotinic acid	CAS No.:55-22-1	Molecular Formula:
Product Number:PCL-#-Ds100-25mg	Product Name:Sodium docusate	CAS No.:577-11-7	Molecular Formula:
Product Number:PCL-#-Ac001-1ml	Product Name:Acrylic	CAS No.:79-10-7	Molecular Formula: