Products

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	Product Name	CAS No.	Molecular Formula
Product Number:PCL-#-Ch094-50mg	Product Name:Zopiclone impurity	CAS No.:43200-83-5	Molecular Formula:
Product Number:PCL-#-Ap002-100mg	Product Name:Fosaprepitant impurity ZZ5 ([3-[[(2S,3R)-2-[(1S)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-2,5-dihydro-5-oxo-1H-1,2,4-triazol-1-yl]phosphonic acid)	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Bz0217-50mg	Product Name:4-(4-Chlorobutyl)pyridine	CAS No.:5264-17-5	Molecular Formula:
Product Number:PCL-#-Hy107-1g	Product Name:m-Hydroxybenzonitrile; 3-Hydroxybenzonitrile	CAS No.:873-62-1	Molecular Formula:
Product Number:PCL-#-Bz0064-50mg	Product Name:Promethazine impurity 2	CAS No.:2102411-30-1	Molecular Formula:
Product Number:510141	Product Name:Celecoxib	CAS No.:#	Molecular Formula:
Product Number:PCL-#-Az958-100mg	Product Name:4-Hydroxy-1-methylhexahydroazepine	CAS No.:19065-49-7	Molecular Formula:
Product Number:PCL-#-Pr152-50mg	Product Name:Pramipexole hydrochloride impurity C	CAS No.:N/A	Molecular Formula:
Product Number:PCL-#-Ve909-25mg	Product Name:Venlafaxine hydrochloride impurity E; Venlafaxine hydrochloride EP impurity E	CAS No.:93413-56-0	Molecular Formula:
Product Number:PCL-#-To017-100mg	Product Name:Methyl-[4-methyl-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-piperidin-3-yl]-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-amine (tofacitinib impurity H)	CAS No.:2504210-38-0	Molecular Formula:
Product Number:PCL-#-Pr008-100mg	Product Name:Pramipexole impurity 11	CAS No.:1585235-18-2	Molecular Formula:
Product Number:PCL-#-Bz0039-50mg	Product Name:Pantoprazole impurity 11	CAS No.:409098-86-8	Molecular Formula:
Product Number:PCL-#-Br007-25mg	Product Name:Bromfenac impurity 6	CAS No.:241825-88-7	Molecular Formula:
Product Number:PCL-#-Di014-500mg	Product Name:1,1-Dimethylbiguanide hydrochloride impurity B; 1-(4,6-Diamino-1,3,5-triazin-2-yl)guanidine	CAS No.:4405-08-7	Molecular Formula:
Product Number:PCL-#-Qu003-50mg	Product Name:Quetiapine EP impurity C	CAS No.:1798840-31-9	Molecular Formula:
Product Number:PCL-#-Di352-50mg	Product Name:(+)-(6R)-2,6-Diamino-4,5,6,7-tetrahydrobenzothiazole	CAS No.:106092-11-9	Molecular Formula:
Product Number:PCL-#-Ro005-25mg	Product Name:Rotigotine impurity F	CAS No.:1229620-82-9	Molecular Formula:
Product Number:PCL-#-Br036-100mg	Product Name:BPZ-22 Control (brexpiprazole impurity 1)	CAS No.:1420987-86-5	Molecular Formula:
Product Number:PCL-#-Dm0963-50mg	Product Name:5-difluoromethoxy-2-mercapto-1H-benzimidazole	CAS No.:97963-62-7	Molecular Formula:
Product Number:PCL-#-Di095-100mg	Product Name:Donepezil impurity; 3,4-Dimethoxyphenylpropionic acid	CAS No.:2107-70-2	Molecular Formula: