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-#-Qm267-50U	Product Name:Aldehyde dehydrogenase	CAS No.:9028-86-8	Molecular Formula:
Product Number:PCL-#-Di141-20mg	Product Name:Diethyl maleate	CAS No.:141-05-9	Molecular Formula:
Product Number:PCL-#-Na145-100mg	Product Name:alpha-Naphthoquinone phenylmethane	CAS No.:145-50-6	Molecular Formula:
Product Number:PCL-#-Me555-100mg	Product Name:Mithril (p-cresol sulfate)	CAS No.:55-55-0	Molecular Formula:
Product Number:PCL-#-As228-100mg	Product Name:Aspartame, 98%	CAS No.:22839-47-0	Molecular Formula:
Product Number:PCL-#-Su121-100mg	Product Name:p-Aminobenzenesulfonic acid, anhydrous	CAS No.:121-57-3	Molecular Formula:
Product Number:PCL-#-Et171-100mg	Product Name:Ethyl 2-ethoxy-p-toluene sulfate	CAS No.:17178-11-9	Molecular Formula:
Product Number:PCL-#-Be121-100mg	Product Name:Benzethonium chloride	CAS No.:121-54-0	Molecular Formula:
Product Number:PCL-#-Am116-100mg	Product Name:1-Amino-2-naphthol-4-sulfonic acid, 90% (g)	CAS No.:116-63-2	Molecular Formula:
Product Number:PCL-#-To178-100mg	Product Name:N-alpha-tosyl-L-arginine methyl ester hydrochloride	CAS No.:1784-03-8	Molecular Formula:
Product Number:PCL-#-Np121-100mg	Product Name:azide-octa polyethylene glycol-carboxylic acid	CAS No.:1214319-92-2	Molecular Formula:
Product Number:PCL-#-Ga592-100mg	Product Name:D(+) galactose	CAS No.:59-23-4	Molecular Formula:
Product Number:PCL-#-Tr106-100mg	Product Name:trimethylsilylacetylene	CAS No.:1066-54-2	Molecular Formula:
Product Number:PCL-#-He140-100mg	Product Name:Cetylpyridinium bromide	CAS No.:140-72-7	Molecular Formula:
Product Number:PCL-#-Di703-100mg	Product Name:2,4-Dinitrofluorobenzene	CAS No.:70-34-8	Molecular Formula:
Product Number:PCL-#-Me478-100mg	Product Name:Methyl 3-hydroxy-4-trimethylsilylethynylbenzoate	CAS No.:478169-68-5	Molecular Formula:
Product Number:PCL-#-Me757-100mg	Product Name:methanesulfonic acid	CAS No.:75-75-2	Molecular Formula:
Product Number:PCL-#-Na703-100mg	Product Name:1-Naphthylamine hydrochloride	CAS No.:552-46-5	Molecular Formula:
Product Number:PCL-#-Ch420-100mg	Product Name:2-fluorotrityl chloride resin	CAS No.:42074-68-0	Molecular Formula:
Product Number:PCL-#-So202-100mg	Product Name:Sodium methanesulfinate	CAS No.:20277-69-4	Molecular Formula: