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-#-Di157-5ml	Product Name:diethylnitrosamine	CAS No.:55-18-5	Molecular Formula:
Product Number:PCL-#-Az907-1ml	Product Name:methyl acrylate	CAS No.:96-33-3	Molecular Formula:
Product Number:1ST10354-100mg	Product Name:Zinc pyrithione	CAS No.:13463-41-7	Molecular Formula:
Product Number:PCL-#-Ch011-5ml	Product Name:3-chloropyridine	CAS No.:626-60-8	Molecular Formula:
Product Number:PCL-#-Di708-100mg	Product Name:1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride	CAS No.:7084-11-9	Molecular Formula:
Product Number:1ST5554-100mg	Product Name:Metronidazole	CAS No.:443-48-1	Molecular Formula:
Product Number:PCL-#-Es124-50mg	Product Name:Nitrilotriacetic acid	CAS No.:139-13-9	Molecular Formula:
Product Number:PCL-#-Di077-5ml	Product Name:2,4-Dimethylthiophenol	CAS No.:13616-82-5	Molecular Formula:
Product Number:PCL-#-Mo029-20mg	Product Name:Sodium L-glutamate monohydrate	CAS No.:6106-04-3	Molecular Formula:
Product Number:PCL-#-Ci361-100mg	Product Name:Ciprofloxacin Lactate	CAS No.:97867-33-9	Molecular Formula:
Product Number:PCL-#-Pa110-50mg	Product Name:N-[[4-(5-methyl-3-phenyl-4-isoxazolyl)phenyl]sulfonyl]propanamide sodium salt (pallecoxib sodium)	CAS No.:198470-85-8	Molecular Formula:
Product Number:PCL-#-pT033-25mg	Product Name:n-Butyl p-toluenesulfonate	CAS No.:778-28-9	Molecular Formula:
Product Number:PCL-#-Am0109-20mg	Product Name:2-aminobenzenesulfonamide	CAS No.:3306-62-5	Molecular Formula:
Product Number:PCL-#-Ch103-50mg	Product Name:p-Chlorobenzeneacetonitrile	CAS No.:140-53-4	Molecular Formula:
Product Number:PCL-#-Aa104-25mg	Product Name:acetaldehyde-ammonia-trimer	CAS No.:58052-80-5	Molecular Formula:
Product Number:1ST2541-100mg	Product Name:ethyl benzoate	CAS No.:93-89-0	Molecular Formula:
Product Number:PCL-#-Ds104-100mg	Product Name:Diisopropyl sulfate	CAS No.:2973-10-6	Molecular Formula:
Product Number:PCL-#-Et368-25mg	Product Name:hydroxyphenyl ethyl ester	CAS No.:118-61-6	Molecular Formula:
Product Number:PCL-#-Ca030-50mg	Product Name:calcium sulfate dihydrate	CAS No.:10101-41-4	Molecular Formula:
Product Number:PCL-#-Cg203-50mg	Product Name:Calcium gluconate	CAS No.:299-28-5	Molecular Formula: