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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-#-Mo117-20mg Benzimidazole Product Name:Benzimidazole CAS No.:51-17-2 Molecular Formula:
Product Number:PCL-#-Ii106-50mg Ibuprofen EP impurity K Product Name:Ibuprofen EP impurity K CAS No.:43153-07-7 Molecular Formula:
Product Number:PCL-#-Hy012-50mg Scopolamine butylbromide impurity E Product Name:Scopolamine butylbromide impurity E CAS No.:22235-98-9 Molecular Formula:
Product Number:PCL-#-U374-50mg Ursodeoxycholic acid; 3α,7β-dihydroxy-5β-cholic-24-oleic acid; Ursodeoxycholic acid Product Name:Ursodeoxycholic acid; 3α,7β-dihydroxy-5β-cholic-24-oleic acid; Ursodeoxycholic acid CAS No.:128-13-2 Molecular Formula:
Product Number:PCL-#-To041-100mg Tofacitinib impurity L Product Name:Tofacitinib impurity L CAS No.:2028267-73-2 Molecular Formula:
Product Number:PCL-#-Bz0435-50mg Aztreonam impurity A Product Name:Aztreonam impurity A CAS No.:102586-36-7 Molecular Formula:
Product Number:PCL-#-Pr028-25mg Pranoprofen impurity 1 Product Name:Pranoprofen impurity 1 CAS No.:52549-19-6 Molecular Formula:
Product Number:PCL-#-Qu004-50mg Quetiapine EP impurity D Product Name:Quetiapine EP impurity D CAS No.:945668-94-0 Molecular Formula:
Product Number:PCL-#-Bz0232-50mg Atorvastatin 3-oxo impurity Product Name:Atorvastatin 3-oxo impurity CAS No.:887196-30-7 Molecular Formula:
Product Number:PCL-#-Br011-100mg Brivaracetam impurity 11 Product Name:Brivaracetam impurity 11 CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Is103 Isopropyl-beta-D-thiogalactopyranoside Product Name:Isopropyl-beta-D-thiogalactopyranoside CAS No.:367-93-1 Molecular Formula:
Product Number:PCL-#-Bz0395-50mg Cefmetazole impurity 3 Product Name:Cefmetazole impurity 3 CAS No.:70993-70-3 Molecular Formula:
Product Number:PCL-#-Bi072-20mg 5-bromo-2-iodotoluene Product Name:5-bromo-2-iodotoluene CAS No.:116632-39-4 Molecular Formula:
Product Number:PCL-#-EA357-25mg ethylenediamine-N,N'-diacetic acid Product Name:ethylenediamine-N,N'-diacetic acid CAS No.:5657-17-0 Molecular Formula:
Product Number:PCL-#-At010-10mg Atorvastatin calcium impurity 84 Product Name:Atorvastatin calcium impurity 84 CAS No.:873950-17-5 Molecular Formula:
Product Number:PCL-#-Az534-10mg Azithromycin impurity N Product Name:Azithromycin impurity N CAS No.:612069-25-7 Molecular Formula:
Product Number:PCL-#-Ai103-50mg Acetaminophen EP impurity N(N,N′-(oxo-di-4,1-phenylene)diethylamide) Product Name:Acetaminophen EP impurity N(N,N′-(oxo-di-4,1-phenylene)diethylamide) CAS No.:3070-86-8 Molecular Formula:
Product Number:PCL-#-Fl006-50mg Fmoc-Arg(Pbf)-Arg(Pbf)-OH Product Name:Fmoc-Arg(Pbf)-Arg(Pbf)-OH CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Bz0282-50mg Erlotinib impurity EL-8-112 Product Name:Erlotinib impurity EL-8-112 CAS No.:1241475-15-9 Molecular Formula:
Product Number:PCL-#-Bz0121-50mg Terbutaline impurity 5 Product Name:Terbutaline impurity 5 CAS No.:52144-93-1 Molecular Formula:
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