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Reference materials from the National Institutes for Food and Drug Control (NIFDC)

1. Definition and Significance of NIFDC Reference Standards

NIFDC reference standards are specialized materials prepared, characterized, and supplied by the National Institutes for Food and Drug Control (NIFDC) under China’s State Drug Administration. As a WHO-designated Collaborating Centre for Drug Quality Assurance, NIFDC’s standards are integral to national drug regulations. They serve as authoritative benchmarks for:

  • Drug identification: Distinguishing genuine vs. counterfeit products.
  • Purity and content analysis: Quantifying active ingredients and impurities.
  • Instrument calibration: Validating HPLC, GC-MS, and spectrophotometer performance.

These standards align with both ChP and international pharmacopeias (USP, EP), bridging global quality requirements.

2. Categories and Sources

NIFDC reference materials cover three core domains:

  • Chemical drugs: e.g., impurity standards, residual solvent kits.
  • Biopharmaceuticals: e.g., peptide/protein reference materials.
  • Traditional Chinese Medicine (TCM): e.g., herbal authentication markers.

Sources:

  • Domestic development: Rigorously validated in NIFDC’s ISO 17025-accredited labs.
  • International collaboration: Cross-certified with USP, EP, and WHO standards.

3. Preparation and Characterization

NIFDC’s production follows a strict protocol:

  1. Method design: Based on ChP, WHO guidelines, and ICH Q4B.
  2. Material synthesis: High-purity raw materials processed via advanced chromatography (e.g., preparative HPLC).
  3. Characterization: Multi-laboratory validation using NMR, mass spectrometry, and thermal analysis.
  4. Stability testing: Accelerated aging studies to ensure 5-10-year shelf life.

Key metrics: Purity (≥98%), uncertainty (<0.5%), and traceability (ISO 17034).

4. Applications and Best Practices

Applications:

  • Pharmaceutical R&D: Impurity profiling for ANDA/NDA submissions.
  • GMP compliance: Batch release testing for APIs and finished products.
  • Regulatory audits: Supporting NMPA, FDA, and EMA inspections.

Usage guidelines:

  • Storage: -20°C for biologics; room temperature for chemical standards.
  • Calibration: Revalidate every 6 months or per method lifecycle.
  • Documentation: Lot-specific COA (Certificate of Analysis) available online.

Supplementary Information
For technical queries or custom reference standard requests, contact Hengyuan Fine Chemical.


Henyuan Fine Chemical is a leading Chinese supplier specializing in pharmaceutical and biological testing fields. As an authorized distributor of the PCL (Purechemland) product series, the company operates directly from manufacturers, serving pharmaceutical enterprises, research institutions, and third-party testing platforms.

Hengyuan Fine Chemical provides 3,000-4,000 types of NIFDC (National Institutes for Food and Drug Control) reference standards, covering chemical drugs, biologics, traditional Chinese medicines, and medical devices. All products are directly supplied or authorized by the China National Institutes for Food and Drug Control (NIFDC), strictly adhering to the Chinese Pharmacopoeia and international testing standards (e.g., USP, EP). The PCL series implements a full-process quality control system spanning cold-chain storage, precision packaging, and quality validation, ensuring the stability and traceability of reference materials. Additionally, the company offers customized solutions and technical consulting services to enhance clients' drug R&D efficiency, production compliance, and testing credibility, solidifying its position as a trusted industry benchmark for standardized services.


Product Number Image Product Name CAS No. Molecular Formula
Product Number:171228 2-Amino-2'-chloro-5-nitrodiphenone Product Name:2-Amino-2'-chloro-5-nitrodiphenone CAS No.:# Molecular Formula:
Product Number:112034 Leucovorin-3'-O-beta-D-glucopyranoside Product Name:Leucovorin-3'-O-beta-D-glucopyranoside CAS No.:# Molecular Formula:
Product Number:101375 Perindopril tert-butylamine and (±)-1''-differential-perindopril mixed controls Product Name:Perindopril tert-butylamine and (±)-1''-differential-perindopril mixed controls CAS No.:101375-N/A Molecular Formula:
Product Number:171254 2-Amino-2',5-dichlorobenzophenone (lorazepam impurity B) Product Name:2-Amino-2',5-dichlorobenzophenone (lorazepam impurity B) CAS No.:# Molecular Formula:
Product Number:101389 Iopachol impurity A (5-amino-N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide) Product Name:Iopachol impurity A (5-amino-N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide) CAS No.:101389-N/A Molecular Formula:
Product Number:101390 Iopachol impurity B (5-[(hydroxyacetyl)amino]-N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide) Product Name:Iopachol impurity B (5-[(hydroxyacetyl)amino]-N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodobenzene-1,3-dicarboxamide) CAS No.:101390-N/A Molecular Formula:
Product Number:101336 Nevirapine impurity III 4-methyl-11-propyl-5,11-dihydro-6-hydroxy-bipyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) Product Name:Nevirapine impurity III 4-methyl-11-propyl-5,11-dihydro-6-hydroxy-bipyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) CAS No.:101336-N/A Molecular Formula:
Product Number:101335 Nevirapine Impurity II (11-ethyl-4-methyl-5,11-dihydro-6-hydroxy-bis-pyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) Product Name:Nevirapine Impurity II (11-ethyl-4-methyl-5,11-dihydro-6-hydroxy-bis-pyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) CAS No.:101335-N/A Molecular Formula:
Product Number:101334 Nevirapine impurity I (4-methyl-5,11-dihydro-6-hydroxy-bipyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) Product Name:Nevirapine impurity I (4-methyl-5,11-dihydro-6-hydroxy-bipyrido[3,2-b: 2',3'-e][1,4]diazepin-6-one) CAS No.:101334-N/A Molecular Formula:
Product Number:101332 Iodophorol impurity II (N,N'-bis(2,3-dihydroxypropyl)-5-(2-(2-hydroxyacetamido)-2-oxoethoxy)- 2,4,6-triiodo-1,3-benzenedicarboxamide) Product Name:Iodophorol impurity II (N,N'-bis(2,3-dihydroxypropyl)-5-(2-(2-hydroxyacetamido)-2-oxoethoxy)- 2,4,6-triiodo-1,3-benzenedicarboxamide) CAS No.:101332-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: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:171287 Flurazepam hydrochloride impurity II (5-chloro-2-(2-diethylaminoethylamino)-2'-fluorobenzophenone hydrochloride) Product Name:Flurazepam hydrochloride impurity II (5-chloro-2-(2-diethylaminoethylamino)-2'-fluorobenzophenone hydrochloride) CAS No.:# Molecular Formula:
Product Number:171284 Propofol impurity I (3,3',5,5'-(tetraisopropyl)biphenyl 4,4'-diol) Product Name:Propofol impurity I (3,3',5,5'-(tetraisopropyl)biphenyl 4,4'-diol) CAS No.:2416-95-7 Molecular Formula:
Product Number:121053 Geese don't eat grass Product Name:Geese don't eat grass CAS No.:# Molecular Formula:
Product Number:121004 Prince's ginseng Product Name:Prince's ginseng CAS No.:# Molecular Formula:
Product Number:121583 Lamb's ear chrysanthemum Product Name:Lamb's ear chrysanthemum CAS No.:# Molecular Formula:
Product Number:121593 Cat's claw Product Name:Cat's claw CAS No.:# Molecular Formula:
Product Number:410007 E.coli host cell DNA residue detection kit (PCR-fluorescent probe method) Product Name:E.coli host cell DNA residue detection kit (PCR-fluorescent probe method) CAS No.:# Molecular Formula:
Product Number:121528 Maitre d'Or Product Name:Maitre d'Or CAS No.:# Molecular Formula:
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