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-#-Qu03-100mg	Product Name:Quinine sulfate	CAS No.:6119-70-6	Molecular Formula:
Product Number:PCL-#-Oa002-1ml	Product Name:Linoleic acid (180mg)	CAS No.:60-33-3	Molecular Formula:
Product Number:PCL-#-Te039-1g	Product Name:tetrabutylammonium hydrogensulphate	CAS No.:32503-27-8	Molecular Formula:
Product Number:PCL-#-An804-20mg	Product Name:Anthraquinone	CAS No.:84-65-1	Molecular Formula:
Product Number:PCL-#-Am107-500mg	Product Name:Diethylene glycolamine	CAS No.:929-06-6	Molecular Formula:
Product Number:PCL-#-C905-1ml	Product Name:2-chloroethanol	CAS No.:107-07-3	Molecular Formula:
Product Number:PCL-#-Tb182-200mg	Product Name:Thiourea	CAS No.:62-56-6	Molecular Formula:
Product Number:PCL-#-P339-50mg	Product Name:Epoxy ethanol (2-phenoxyethanol)	CAS No.:122-99-6	Molecular Formula:
Product Number:PCL-#-De020-50mg	Product Name:2-deoxy-D-ribose	CAS No.:533-67-5	Molecular Formula:
Product Number:PCL-#-Ci316-20mg	Product Name:maleic anhydride	CAS No.:108-31-6	Molecular Formula:
Product Number:PCL-#-Ch738-1ml	Product Name:Chlorobenzene	CAS No.:108-90-7	Molecular Formula:
Product Number:PCL-#-Am110-100mg	Product Name:3-aminopropanol	CAS No.:156-87-6	Molecular Formula:
Product Number:PCL-#-Et098-100mg	Product Name:disodium ethylenediaminetetraacetic acid	CAS No.:139-33-3	Molecular Formula:
Product Number:PCL-#-Pi111-50mg	Product Name:3-Piperidinecarboxylic acid; Piperidine-3-carboxylic acid	CAS No.:498-95-3	Molecular Formula:
Product Number:PCL-#-Ph010-5ml	Product Name:beta-phenylethanol	CAS No.:60-12-8	Molecular Formula:
Product Number:PCL-#-Ma005-50mg	Product Name:L-mannose	CAS No.:10030-80-5	Molecular Formula:
Product Number:PCL-#-T213-50mg	Product Name:Triethylene diamine	CAS No.:280-57-9	Molecular Formula:
Product Number:PCL-#-Di104 -100mg	Product Name:Diethyl carbonate	CAS No.:105-58-8	Molecular Formula:
Product Number:PCL-#-D315-20mg	Product Name:para-aminobenzoic acid	CAS No.:150-13-0	Molecular Formula:
Product Number:PCL-#-Sa001-20mg	Product Name:p-Aminobenzenesulfonic acid; sulfanilic acid	CAS No.:121-57-3	Molecular Formula: