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-#-Me145-10mg	Product Name:Metformin hydrochloride	CAS No.:1115-70-4	Molecular Formula:
Product Number:1ST4110A-100mg	Product Name:Chrysomycin hydrochloride	CAS No.:64-72-2	Molecular Formula:
Product Number:1ST4102A-100mg	Product Name:Tetracycline hydrochloride	CAS No.:64-75-5	Molecular Formula:
Product Number:PCL-#-S084-20mg	Product Name:Sucrose octaacetate	CAS No.:126-14-7	Molecular Formula:
Product Number:PCL-#-Cb624-1g	Product Name:Finasteride	CAS No.:62-44-2	Molecular Formula:
Product Number:PCL-#-A321-0.2ml	Product Name:Anisaldehyde	CAS No.:123-11-5	Molecular Formula:
Product Number:1ST12003-100mg	Product Name:Cefradine	CAS No.:38821-53-3	Molecular Formula:
Product Number:PCL-#-Cl010-20mg	Product Name:Clindamycin	CAS No.:18323-44-9	Molecular Formula:
Product Number:PCL-#-Me053-50mg	Product Name:Methionine	CAS No.:59-51-8	Molecular Formula:
Product Number:1ST5738-100mg	Product Name:Norfloxacin	CAS No.:70458-96-7	Molecular Formula:
Product Number:PCL-#-Ce002-20mg	Product Name:Cefadroxil	CAS No.:15686-71-2	Molecular Formula:
Product Number:PCL-#-Tr002-50mg	Product Name:Triclosan	CAS No.:3380-34-5	Molecular Formula:
Product Number:PCL-#-Tr212-1ml	Product Name:Tridecane	CAS No.:629-50-5	Molecular Formula:
Product Number:34036083-0923	Product Name:sodium polystyrene sulfonate	CAS No.:25704-18-1	Molecular Formula:
Product Number:71958-100mg	Product Name:butyl acetate	CAS No.:123-86-4	Molecular Formula:
Product Number:PCL-#-Di993-100mg	Product Name:3,5-Dinitrobenzoic acid	CAS No.:99-34-3	Molecular Formula:
Product Number:PCL-#-En106-100mg	Product Name:Enrofloxacin	CAS No.:93106-60-6	Molecular Formula:
Product Number:PCL-#-Ad100-50mg	Product Name:adamantane	CAS No.:281-23-2	Molecular Formula:
Product Number:PCL-#-D235-1g	Product Name:diethylene glycol	CAS No.:111-46-6	Molecular Formula:
Product Number:PCL-#-Hy0021-25mg	Product Name:4-hydroxybenzoic acid	CAS No.:99-96-7	Molecular Formula: