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Pharmaceutical Testing Reference Mterials

Pharmaceutical Reference Materials (PRMs) refer to substances with defined characteristic values used for calibrating instruments, evaluating measurement methods, or assigning values to tested pharmaceuticals in physical/chemical tests and biological assays specified by pharmacopoeial standards. These include reference standards, comparators, herbal reference materials, and reference preparations.

Hengyuan Fine Chemical specializes in providing cost-effective reference material solutions for pharmaceutical quality control, encompassing:

  • Drug testing reference standards
  • Pharmaceutical impurity reference standards
  • NIFDC-certified reference materials
  • Chemical analysis reference standards
  • Traditional Chinese Medicine (TCM) analytical standards
  • TCM reference standards
  • Herbal blank matrices for pesticide residue testing
  • Bio-peptide reference standards
All products under our PCL brand comply with both national standards and international guidelines. Our accreditations include:

  • CNAS certification (China National Accreditation Service for Conformity Assessment)
  • ISO 17034:2016 certification for reference material producers
  • ISO 9001:2015 quality management system certification We implement a comprehensive quality management system supported by Certificates of Analysis (COA), ensuring high purity (>98%), batch-to-batch consistency, and full traceability. Our solutions are widely applied in pharmaceutical R&D, QC testing, and analytical verification to enhance testing accuracy and operational efficiency.

Through our vertically integrated business model (R&D-production-sales), we eliminate intermediaries to deliver:

 ✓ Bulk supply capacities for routine QC needs 

✓ Custom synthesis services for specialized compounds 

✓ 30-50% cost reduction versus market averages 

✓ Streamlined procurement workflows 

This dual approach establishes economically optimized yet reliable quality control frameworks for clients across the pharmaceutical value chain.



Product Number Image Product Name CAS No. Molecular Formula
Product Number:PCL-#-Bz0099-50mg Chlorpheniramine EP impurity D Product Name:Chlorpheniramine EP impurity D CAS No.:65676-21-3 Molecular Formula:
Product Number:PCL-#-Bz0215-50mg Thiamine EP impurity G Product Name:Thiamine EP impurity G CAS No.:1037-29-2 Molecular Formula:
Product Number:PCL-#-Bz0071-50mg Atorvastatin impurity 6 Product Name:Atorvastatin impurity 6 CAS No.:693794-20-6 Molecular Formula:
Product Number:PCL-#-Bz0285-50mg Erlotinib Impurity EL-6-102 Product Name:Erlotinib Impurity EL-6-102 CAS No.:236750-62-2 Molecular Formula:
Product Number:PCL-#-Es046-50mg Zopiclone impurity B Product Name:Zopiclone impurity B CAS No.:43200-81-3 Molecular Formula:
Product Number:PCL-#-Am007-50mg 3-Amino-2-cyclohexen-1-one Product Name:3-Amino-2-cyclohexen-1-one CAS No.:5220-49-5 Molecular Formula:
Product Number:PCL-#-Dm105-50mg Dextromethorphan hydrobromide impurity VI Product Name:Dextromethorphan hydrobromide impurity VI CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0029-50mg m-Hydroxylamine isomer 1 Product Name:m-Hydroxylamine isomer 1 CAS No.:21480-44-4 Molecular Formula:
Product Number:PCL-#-Bz0300-50mg Entecavir impurity E Product Name:Entecavir impurity E CAS No.:2203740-23-0 Molecular Formula:
Product Number:PCL-#-Ai229-50mg Acetaminophen EP Impurity I Product Name:Acetaminophen EP Impurity I CAS No.:118-93-4 Molecular Formula:
Product Number:PCL-#-Az537-50mg Azithromycin impurity F Product Name:Azithromycin impurity F CAS No.:612069-28-0 Molecular Formula:
Product Number:PCL#-Et100-50mg Ethylenediaminetriacetic acid; N-(Carboxymethyl)-N-2-(carboxymethyl)aminoethylglycine; Triacetic acid impurity 1 Product Name:Ethylenediaminetriacetic acid; N-(Carboxymethyl)-N-2-(carboxymethyl)aminoethylglycine; Triacetic acid impurity 1 CAS No.:688-57-3 Molecular Formula:
Product Number:PCL-#-De040-50mg Dextromethorphan EP impurity A Product Name:Dextromethorphan EP impurity A CAS No.:1531-23-3 Molecular Formula:
Product Number:PCL-#-Zg035-25mg benzyloxycarbonyl-glycyl-L-tyrosine benzyl ester Product Name:benzyloxycarbonyl-glycyl-L-tyrosine benzyl ester CAS No.:57294-46-9 Molecular Formula:
Product Number:PCL-#-Ii102-50mg Ibuprofen EP impurity L Product Name:Ibuprofen EP impurity L CAS No.:53949-53-4 Molecular Formula:
Product Number:PCL-#-Bz0114-50mg Ethiprone impurity D Product Name:Ethiprone impurity D CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Tr010-150mg 1,1,2-Trimethyl-1H-benzo[e]indole Product Name:1,1,2-Trimethyl-1H-benzo[e]indole CAS No.:41532-84-7 Molecular Formula:
Product Number:PCL-#-Dm122-50mg 1-phenyl-3-methyl-5-pyrazolone Product Name:1-phenyl-3-methyl-5-pyrazolone CAS No.:19735-89-8 Molecular Formula:
Product Number:PCL-#-Ai100-50mg Acetaminophen impurity M (4,4'-iminodiol) Product Name:Acetaminophen impurity M (4,4'-iminodiol) CAS No.:1752-24-5 Molecular Formula:
Product Number:PCL-#-Chp0374-25mg Norfloxacin impurityⅠ Product Name:Norfloxacin impurityⅠ CAS No.:68077-26-9 Molecular Formula:
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