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-#-Mo014-100mg	Product Name:methyl esters of fatty acids	CAS No.:627-91-8	Molecular Formula:
Product Number:PCL-#-Ch932-20mg	Product Name:Kojiritigenin 7-O-glucoside	CAS No.:19993-32-9	Molecular Formula:
Product Number:GBW(E)082267	Product Name:standard solution of ammonia in water	CAS No.:N/A	Molecular Formula:
Product Number:HB0153-1	Product Name:Colombian CNA blood agar	CAS No.:N/A	Molecular Formula:
Product Number:A955-4	Product Name:Acetonitrile (original import)	CAS No.:75-05-8	Molecular Formula:
Product Number:GBW(E)082757	Product Name:Phosphorus-S solution standard in acetone	CAS No.:126-75-0	Molecular Formula:
Product Number:02-474	Product Name:Colombian CAN blood agar base	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-As0110-10ml	Product Name:Atropine sulfate standard solution	CAS No.:5908-99-6	Molecular Formula:
Product Number:CM316	Product Name:Colombian CNA agar base	CAS No.:N/A	Molecular Formula:
Product Number:GSB 07-1266 2000	Product Name:Standard samples for calibration of fluoride analysis	CAS No.:N/A	Molecular Formula:
Product Number:HBPM7007-1	Product Name:Salmonella chromogenic (second generation) agar plates, the	CAS No.:N/A	Molecular Formula:
Product Number:CM188	Product Name:MRS Agar (MRSA)	CAS No.:N/A	Molecular Formula:
Product Number:CM193	Product Name:Bifidobacterium bifidum agar medium base	CAS No.:N/A	Molecular Formula:
Product Number:HB0124	Product Name:Columbia blood agar base	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Li414-25mg	Product Name:Salbutamol impurity J (hydrochloride)	CAS No.:41489-89-8	Molecular Formula:
Product Number:PCL-#-Di097-100mg	Product Name:diphenylmethane diisocyanate	CAS No.:101-68-8	Molecular Formula:
Product Number:PCL-#-To119-100mg	Product Name:toluene diisocyanate	CAS No.:26471-62-5	Molecular Formula:
Product Number:PCL-#-Me177-5ml	Product Name:Hexylene Glycol	CAS No.:107-41-5	Molecular Formula:
Product Number:1ST2560-100mg	Product Name:propyl benzoate	CAS No.:2315-68-6	Molecular Formula:
Product Number:1ST2810-100mg	Product Name:isopropyl benzoate	CAS No.:939-48-0	Molecular Formula: