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:GBW(E)081571	Product Name:Standard substance for glyphosate solution in water	CAS No.:1071-83-6	Molecular Formula:
Product Number:21342	Product Name:Gram-positive bacteria identification card (GP)	CAS No.:N/A	Molecular Formula:
Product Number:72623-1g	Product Name:Dichloromethane	CAS No.:75-09-2	Molecular Formula:
Product Number:Z67527-25g	Product Name:Barbituric acid	CAS No.:67-52-7	Molecular Formula:
Product Number:M-1004-10X	Product Name:13-component aldehydes and ketones-DNPH compounds mixed standard (apply HJ683) Varied conc. in Acetonitrile	CAS No.:/	Molecular Formula:
Product Number:PCL-#-Py127-1ml	Product Name:Pyruvic acid (Reich's method)	CAS No.:127-17-3	Molecular Formula:
Product Number:CDAA-S-610918-BD-1.2ml	Product Name:Standard solution for analyzing the content of yellow phosphorus in water quality (DB3838 Surface water, HJ701-2014 Yellow phosphorus in water quality)	CAS No.:12185-10-3	Molecular Formula:
Product Number:PCL-#-Ma012-100mg	Product Name:Malononitrile	CAS No.:109-77-3	Molecular Formula:
Product Number:M0687-500g	Product Name:pyrazolone	CAS No.:89-25-8	Molecular Formula:
Product Number:PCL-#-F912-5ml	Product Name:Formaldehyde	CAS No.:50-00-0	Molecular Formula:
Product Number:K-536469-25g	Product Name:N.N-dimethyl-p-phenylenediamine hydrochloride	CAS No.:536-46-9	Molecular Formula:
Product Number:BW20077-1000-100	Product Name:Chlorine dioxide solution (as chlorine dioxide)/shelf life 1 month	CAS No.:10049-04-4	Molecular Formula:
Product Number:1ST2063-100mg	Product Name:Triglycerol nineteen-alkanoate	CAS No.:26536-13-0	Molecular Formula:
Product Number:1ST7901-100M	Product Name:ethyl carbamate solution in methanol	CAS No.:51-79-6	Molecular Formula:
Product Number:DRE-S15819982DD-2.5	Product Name:hygromycin-13C22-15N2	CAS No.:/	Molecular Formula:
Product Number:1ST2215-100mg	Product Name:Hexenoestrol (E-hexenoestrol)	CAS No.:56-53-1	Molecular Formula:
Product Number:1ST2158-100mg	Product Name:methylisothiazolinone	CAS No.:2682-20-4	Molecular Formula:
Product Number:PCL-530005D6	Product Name:Tetracycline-D6	CAS No.:2373374-42-4	Molecular Formula:
Product Number:1ST002125-100mg	Product Name:bromaclofen	CAS No.:15435-29-7	Molecular Formula:
Product Number:1ST21313-100mg	Product Name:Triclocarban	CAS No.:101-20-2	Molecular Formula: