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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:100656 Mosapride citrate Product Name:Mosapride citrate CAS No.:100656-N/A Molecular Formula:
Product Number:PCL-#-Bz0359-50mg pitavastatin impurity 19 sodium salt Product Name:pitavastatin impurity 19 sodium salt CAS No.:1980814-87-6 Molecular Formula:
Product Number:PCL-#-Bz0230-50mg Atorvastatin impurity 226 Product Name:Atorvastatin impurity 226 CAS No.:947262-20-6 Molecular Formula:
Product Number:PCL-#-Bz0059-50mg Acyclovir impurity I Product Name:Acyclovir impurity I CAS No.:1797832-75-7 Molecular Formula:
Product Number:PCL-#-Bz0053-50mg Acyclovir impurity A Product Name:Acyclovir impurity A CAS No.:102728-64-3 Molecular Formula:
Product Number:171300 2-amino-5-chloropyridine Product Name:2-amino-5-chloropyridine CAS No.:1072-98-6 Molecular Formula:
Product Number:PCL-#-Qu007-100mg Quetiapine fumarate impurity G Product Name:Quetiapine fumarate impurity G CAS No.:3159-07-7 Molecular Formula:
Product Number:PCL-#-Mo105-25mg Moxifloxacin impurity 37; 1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(6-oxo-octahydro-pyrrolo[3,4-b]pyridin-6-yl)-1,4-dihydro-quinoline-3-carboxylic acid Product Name:Moxifloxacin impurity 37; 1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(6-oxo-octahydro-pyrrolo[3,4-b]pyridin-6-yl)-1,4-dihydro-quinoline-3-carboxylic acid CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Fu016-25mg Furosemide EP impurity I Product Name:Furosemide EP impurity I CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Az533-50mg Azithromycin EP impurity M Product Name:Azithromycin EP impurity M CAS No.:765927-71-7 Molecular Formula:
Product Number:PCL-#-Ra055-50mg Racemic Cadotril EP impurity C, Product Name:Racemic Cadotril EP impurity C, CAS No.:124735-06-4 Molecular Formula:
Product Number:PCL-#-Cy004-100mg Moxifloxacin impurity K; 6-cyclopropyl-9-fluoro-2-hydroxy-7-methoxy-8-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-4,6-dihydro-2H-1λ3,2λ4-[1,3,2]dioxa[5,6-c]quinoline-2-acetate Product Name:Moxifloxacin impurity K; 6-cyclopropyl-9-fluoro-2-hydroxy-7-methoxy-8-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-4,6-dihydro-2H-1λ3,2λ4-[1,3,2]dioxa[5,6-c]quinoline-2-acetate CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Es012-100mg Escitalopram oxalate impurity B Product Name:Escitalopram oxalate impurity B CAS No.:411221-53-9 Molecular Formula:
Product Number:PCL-#-Ra022-50mg Racemic Cardotril impurity Q Product Name:Racemic Cardotril impurity Q CAS No.:N/A Molecular Formula:
Product Number:PCL-#-VO971-50mg Vortioxetine hydrobromide impurity Q Product Name:Vortioxetine hydrobromide impurity Q CAS No.:N/A Molecular Formula:
Product Number:PCL-#-Ap053-50mg p-Methoxyaniline Product Name:p-Methoxyaniline CAS No.:104-94-9 Molecular Formula:
Product Number:PCL-#-Bz0020-50mg Lipoic acid impurity 13 Product Name:Lipoic acid impurity 13 CAS No.:91140-37-3 Molecular Formula:
Product Number:PCL-#-Me104-50mg ent-3-methoxy-17-methyl-morphinan-10-one; (9S,13S,14S)-3-methoxy-17-methylmorphinan-10-one (dextromethorphan impurity C) Product Name:ent-3-methoxy-17-methyl-morphinan-10-one; (9S,13S,14S)-3-methoxy-17-methylmorphinan-10-one (dextromethorphan impurity C) CAS No.:57969-05-8 Molecular Formula:
Product Number:PCL-#-Bz0263-50mg Dasatinib impurity 29 Product Name:Dasatinib impurity 29 CAS No.:1417651-54-7 Molecular Formula:
Product Number:PCL-#-Ro008-25mg Rotigotine impurity J(Rotigotine thiophene ethyl ether) Product Name:Rotigotine impurity J(Rotigotine thiophene ethyl ether) CAS No.:N/A Molecular Formula:
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