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:1ST2543-100mg	Product Name:Benzylchlorophenol (4-chloro-2-benzylphenol)	CAS No.:120-32-1	Molecular Formula:
Product Number:1ST21200-100mg	Product Name:Climbazole (Gambutrol)	CAS No.:38083-17-9	Molecular Formula:
Product Number:1ST2544-100mg	Product Name:Chlorodimethylphenol (4-chloro-3,5-xylenol)	CAS No.:88-04-0	Molecular Formula:
Product Number:1ST005121-100mg	Product Name:o-Cymene-5-ol ( 4-isopropyl-3-methylphenol)	CAS No.:3228-02-2	Molecular Formula:
Product Number:1ST2534-100mg	Product Name:o-phenylphenol	CAS No.:90-43-7	Molecular Formula:
Product Number:1ST158257-100mg	Product Name:2,4-Dichlorobenzyl alcohol ( 2,4-dichlorobenzyl alcohol)	CAS No.:1777-82-8	Molecular Formula:
Product Number:1ST000719-100mg	Product Name:4-Chloro-m-cresol (4-chloro-3-methylphenol)	CAS No.:59-50-7	Molecular Formula:
Product Number:1ST001628-100mg	Product Name:Iodopropynol butylcarbamate (butylcarbamic acid iodopropynyl ester)	CAS No.:55406-53-6	Molecular Formula:
Product Number:PCL-#-Le001-25mg	Product Name:Levofloxacin N-oxide	CAS No.:117678-38-3	Molecular Formula:
Product Number:PCL-#-De005-25mg	Product Name:decarboxylated levofloxacin	CAS No.:178964-53-9	Molecular Formula:
Product Number:PCL-#-De004-25mg	Product Name:N,N-desethylene levofloxacin	CAS No.:151250-76-9	Molecular Formula:
Product Number:PCL-#-De003-25mg	Product Name:Desflurigated levofloxacin	CAS No.:#	Molecular Formula:
Product Number:1ST4122X-100mg	Product Name:Doxycycline monohydrochloride hemiethanol hemihydrate	CAS No.:24390-14-5	Molecular Formula:
Product Number:1ST4131-100mg	Product Name:hygromycin dihydrate	CAS No.:6153-64-6	Molecular Formula:
Product Number:1ST4104-100mg	Product Name:Minocycline hydrochloride	CAS No.:13614-98-7	Molecular Formula:
Product Number:BY1342	Product Name:BD test kits	CAS No.:N/A	Molecular Formula:
Product Number:GYHQ-200	Product Name:Hydrogen peroxide dry mist uniformity test card	CAS No.:N/A	Molecular Formula:
Product Number:H3723L	Product Name:Biological indicator for moist heat sterilization (liquid self-contained)	CAS No.:N/A	Molecular Formula:
Product Number:FYLD-1000ml	Product Name:Dispensing funnel with PTFE piston	CAS No.:N/A	Molecular Formula:
Product Number:0030000870	Product Name:Pipette gun tips	CAS No.:N/A	Molecular Formula: