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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:100009 Fludrocortisone acetate Product Name:Fludrocortisone acetate CAS No.:100009-N/A Molecular Formula:
Product Number:101340 Piperaquine phosphate impurity II (7-chloro-4-hydroxyquinoline) Product Name:Piperaquine phosphate impurity II (7-chloro-4-hydroxyquinoline) CAS No.:101340-N/A Molecular Formula:
Product Number:101328 Emtricitabine Impurity V ((2R,5S)-5-(5-fluorocytosine-1-yl)-1,3-oxathiolane-2-carboxylic acid menthol ester) Product Name:Emtricitabine Impurity V ((2R,5S)-5-(5-fluorocytosine-1-yl)-1,3-oxathiolane-2-carboxylic acid menthol ester) CAS No.:101328-N/A Molecular Formula:
Product Number:101327 Emtricitabine impurity IV Product Name:Emtricitabine impurity IV CAS No.:101327-N/A Molecular Formula:
Product Number:101326 Emtricitabine Impurity II [(2R,3R,5S)-5-fluoro-1-[2-hydroxymethyl-3-oxo-1,3-oxathiolan-5-yl]cytosine] Product Name:Emtricitabine Impurity II [(2R,3R,5S)-5-fluoro-1-[2-hydroxymethyl-3-oxo-1,3-oxathiolan-5-yl]cytosine] CAS No.:101326-N/A Molecular Formula:
Product Number:101325 Aplindin hydrochloride Product Name:Aplindin hydrochloride CAS No.:101325-N/A Molecular Formula:
Product Number:101324 Artemether impurity II {2-[4-methyl-2-oxo-3-(3-oxobutyl)cyclohexyl]propionaldehyde} Product Name:Artemether impurity II {2-[4-methyl-2-oxo-3-(3-oxobutyl)cyclohexyl]propionaldehyde} CAS No.:101324-N/A Molecular Formula:
Product Number:101323 alpha-artemether Product Name:alpha-artemether CAS No.:71939-51-0 Molecular Formula:
Product Number:101322 Benfluorenol impurity Ι｛(RS,Z)-2-(dibutylamino)-2-[2,7-dichloro-9-(4-chlorophenylmethylene)9H-fluoren-4-yl]ethanol }} Product Name:Benfluorenol impurity Ι｛(RS,Z)-2-(dibutylamino)-2-[2,7-dichloro-9-(4-chlorophenylmethylene)9H-fluoren-4-yl]ethanol }} CAS No.:101322-N/A Molecular Formula:
Product Number:101321 Benfluorenol Product Name:Benfluorenol CAS No.:101321-N/A Molecular Formula:
Product Number:101329 Emtricitabine Isomer Check System Suitability Test Mixture Product Name:Emtricitabine Isomer Check System Suitability Test Mixture CAS No.:101329-N/A Molecular Formula:
Product Number:101331 Iodophorol impurity I (N,N'-bis(2,3-dihydroxypropyl)-5-amino-2,4,6-triiodo-1,3-benzenedicarboxamide) Product Name:Iodophorol impurity I (N,N'-bis(2,3-dihydroxypropyl)-5-amino-2,4,6-triiodo-1,3-benzenedicarboxamide) CAS No.:101331-N/A Molecular Formula:
Product Number:101330 iophorol Product Name:iophorol CAS No.:101330-N/A Molecular Formula:
Product Number:100029 menaquinone Product Name:menaquinone CAS No.:58-27-5 Molecular Formula:
Product Number:101359 Adefovir impurity (adefovir) Product Name:Adefovir impurity (adefovir) CAS No.:101359-N/A Molecular Formula:
Product Number:100028 Norgestrel Product Name:Norgestrel CAS No.:100028-N/A Molecular Formula:
Product Number:101358 Mirinone impurity Ⅱ(1,6- dihydro -2- methyl -6- oxygen -(3,4'- bipyridine) -5- methyl formate) Product Name:Mirinone impurity Ⅱ(1,6- dihydro -2- methyl -6- oxygen -(3,4'- bipyridine) -5- methyl formate) CAS No.:101358-N/A Molecular Formula:
Product Number:100027 progesterone Product Name:progesterone CAS No.:57-83-0 Molecular Formula:
Product Number:101357 Gadolinium beglucuronide impurity (sodium pyruvate) Product Name:Gadolinium beglucuronide impurity (sodium pyruvate) CAS No.:101357-N/A Molecular Formula:
Product Number:100096 sulphanilamide Product Name:sulphanilamide CAS No.:63-74-1 Molecular Formula:
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