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:715875-100mg	Product Name:carbon tetrachloride	CAS No.:56-23-5	Molecular Formula:
Product Number:72397-250mg	Product Name:ethyl formate	CAS No.:109-94-4	Molecular Formula:
Product Number:78030-250mg	Product Name:butyl formate	CAS No.:592-84-7	Molecular Formula:
Product Number:71993-1g	Product Name:methylcyclohexane	CAS No.:108-87-2	Molecular Formula:
Product Number:721916-100mg	Product Name:2-butanone	CAS No.:78-93-3	Molecular Formula:
Product Number:72583	Product Name:1,2-dichloroethane	CAS No.:107-06-2	Molecular Formula:
Product Number:72495-1g	Product Name:3-Methyl-1-butanol (isoamyl alcohol)	CAS No.:123-51-3	Molecular Formula:
Product Number:72014-1g	Product Name:isopropyl alcohol	CAS No.:67-63-0	Molecular Formula:
Product Number:71128-10mg	Product Name:2-Furfuryl alcohol	CAS No.:98-00-0	Molecular Formula:
Product Number:GBW(E)082485	Product Name:Standard substance for isooctanol solution in isobutanol/carbon disulfide	CAS No.:104-76-7	Molecular Formula:
Product Number:GBW(E)082472	Product Name:Standard substance for butanone solution in carbon disulfide	CAS No.:78-93-3	Molecular Formula:
Product Number:GBW(E)082471	Product Name:Standard substance for acetone solution in carbon disulfide	CAS No.:67-64-1	Molecular Formula:
Product Number:PCL-#-D003-20mg	Product Name:1,4-Dioxane	CAS No.:123-91-1	Molecular Formula:
Product Number:PCL-2024SY102-475ml	Product Name:water pH standard solution	CAS No.:N/A	Molecular Formula:
Product Number:K034295-500ml	Product Name:volumetric one-component pyridine-free Karl Fischer reagent	CAS No.:N/A	Molecular Formula:
Product Number:HG/T3484-1999	Product Name:standard glass emulsion	CAS No.:N/A	Molecular Formula:
Product Number:K03567-25G	Product Name:4-Hydroxy-3-((4-sulfonaphthalen-1-yl)azo)naphthalene-1-sulfonic acid disodium salt	CAS No.:3567-69-9	Molecular Formula:
Product Number:K06339-25g	Product Name:Orange and Yellow II	CAS No.:633-96-5	Molecular Formula:
Product Number:KO7505-500ML	Product Name:trifluoroacetic acid	CAS No.:76-05-1	Molecular Formula:
Product Number:GGJYQP-10	Product Name:Microsampler Flat head, flat head	CAS No.:N/A	Molecular Formula: