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-#-Ur289-250mg	Product Name:ethyl carbamate	CAS No.:51-79-6	Molecular Formula:
Product Number:PCL-#-Et752-250mg	Product Name:2-ethylbutyric acid	CAS No.:88-09-5	Molecular Formula:
Product Number:PCL-#-He068-250mg	Product Name:Caproic acid	CAS No.:142-62-1	Molecular Formula:
Product Number:PCL-#-Mb181-1g	Product Name:tertiary amyl alcohol	CAS No.:75-85-4	Molecular Formula:
Product Number:PCL-#-Am851-1g	Product Name:pentyl acetate	CAS No.:628-63-7	Molecular Formula:
Product Number:PCL-#-Et872-100mg	Product Name:Ethyl caproate	CAS No.:123-66-0	Molecular Formula:
Product Number:PCL-#-Do011-100mg	Product Name:Dodecanal	CAS No.:112-54-9	Molecular Formula:
Product Number:PCL-#-Tr091-100mg	Product Name:2,4-Decadienal	CAS No.:2363-88-4	Molecular Formula:
Product Number:PCL-#-No078-1ml	Product Name:Nonanal	CAS No.:124-19-6	Molecular Formula:
Product Number:bsldxyxp-1000ml	Product Name:Transparent three-necked mobile phase vials	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Gy078-100mg	Product Name:glycyl-glycyl-glycine	CAS No.:556-33-2	Molecular Formula:
Product Number:PCL-#-Ga025-10mg	Product Name:ethionine-ethionine-tyrosine-arginine	CAS No.:70195-20-9	Molecular Formula:
Product Number:PCL-#-Am942-50mg	Product Name:6-Aminoquinolinyl-N-hydroxysuccinimidyl carbamate	CAS No.:148757-94-2	Molecular Formula:
Product Number:PCL-#-Ma346-20mg	Product Name:Malt heptose	CAS No.:34620-78-5	Molecular Formula:
Product Number:PCL-2023BZ971-50mL	Product Name:Chemical Oxygen Demand (COD) quality control samples	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Tr178-100mg	Product Name:Triisopropanolamine	CAS No.:122-20-3	Molecular Formula:
Product Number:PCL-2024BZ320-1ml	Product Name:acetaldehyde standard solution	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Tr397-1ml	Product Name:1,1,2-trichloroethane	CAS No.:79-00-5	Molecular Formula:
Product Number:PCL-2024BZ179-1ml	Product Name:22 volatile organic compounds in methanol GB/T 18883-2022	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Md121-100mg	Product Name:toluene-2,6-diisocyanate	CAS No.:91-08-7	Molecular Formula: