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-#-Et116-100mg	Product Name:Ethyl N,N-dimethylaminoacrylate	CAS No.:1117-37-9	Molecular Formula:
Product Number:PCL-#-Te213-100mg	Product Name:3,4,5,6-tetrafluorophthalic acid	CAS No.:652-03-9	Molecular Formula:
Product Number:PCL-#-Te212-100mg	Product Name:1,2,3,4-tetrafluorobenzene	CAS No.:551-62-2	Molecular Formula:
Product Number:PCL-#-Me116-100mg	Product Name:3,4,5,6-tetrafluoro-N-methylphthalimide	CAS No.:33795-85-6	Molecular Formula:
Product Number:PCL-#-Te211-100mg	Product Name:2,3,4,5-tetrafluorobenzoyl chloride	CAS No.:94695-48-4	Molecular Formula:
Product Number:PCL-#-Hy370-50mg	Product Name:N-methyltyramine	CAS No.:370-98-9	Molecular Formula:
Product Number:PCL-#-Me093-1ml	Product Name:thioglycolic acid	CAS No.:68-11-1	Molecular Formula:
Product Number:PCL-#-Lf986-100mg	Product Name:Norfluorocyclohexane	CAS No.:70458-94-5	Molecular Formula:
Product Number:PCL-#-C812-250mg	Product Name:Cyclohexane	CAS No.:110-82-7	Molecular Formula:
Product Number:M5353	Product Name:mitomycin C ready-to-use solution	CAS No.:N/A	Molecular Formula:
Product Number:01-009	Product Name:Beef paste	CAS No.:N/A	Molecular Formula:
Product Number:C0372-1ml	Product Name:Matrix-Gel	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Th010-500mg	Product Name:L-threoninol	CAS No.:3228-51-1	Molecular Formula:
Product Number:CDAA-530154D5-1mg	Product Name:Cefadroxil-D5	CAS No.:2101505-56-8	Molecular Formula:
Product Number:BW902969-2000-A	Product Name:Fluorinated benzene in methanol	CAS No.:462-06-6	Molecular Formula:
Product Number:81429	Product Name:25 VOC VOC mixing standards in methanol	CAS No.:N/A	Molecular Formula:
Product Number:46690	Product Name:Custom Mixed VOC Standard (25 Analytes) Varied	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-So119-1g	Product Name:Sodium metabisulfite	CAS No.:7681-57-4	Molecular Formula:
Product Number:PCL-#-A663 -20mg	Product Name:Apigenin-7-O-beta-D-glucuronide	CAS No.:29741-09-1	Molecular Formula:
Product Number:PCL-#-K836-20mg	Product Name:Quercetin-3-O-gentiobioside	CAS No.:7431-83-6	Molecular Formula: