In the global supply chain for peptide therapeutics and high-value peptide chemical products, multinational pharmaceutical and chemical giants maintain exceptionally rigorous supplier selection criteria. Plant qualification serves not only as a reflection of a factory's manufacturing capacity but also as a fundamental guarantee of quality compliance and supply continuity. During site and document audits, multinational enterprises typically focus on four key compliance domains:

1. Facility Design and Cleanliness Zoning (Cross-Contamination Control)

• HVAC Systems and Differential Pressure Control: Auditors strictly review the operation logs of independent HVAC systems across production, packaging, and raw material areas to verify whether air pressure differentials effectively prevent particulate and microbial cross-contamination.

• Dedicated Production Lines and Functional Isolation: For Solid-Phase Peptide Synthesis (SPPS) and Liquid-Phase Peptide Synthesis (LPPS) zones, the facility must demonstrate clear zoning and segregated flows for personnel, raw materials, and waste to prevent the mixing of highly potent or active compounds.

2. Quality Management System and Data Integrity

• Implementation of ALCOA+ Principles: Computerized systems on production and analytical equipment (e.g., HPLC, LC-MS) must undergo full Computerized System Validation (CSV) and feature robust Audit Trail functionality to ensure all manufacturing and testing data are attributable, legible, and tamper-proof.

• Regulatory Compliance Documentation: The facility must provide complete validation documentation aligned with cGMP, EU GMP, or WHO standards, including Qualification (DQ/IQ/OQ/PQ) records and ongoing re-validation schedules.

3. EHS (Environment, Health, and Safety) & Hazardous Chemical Management

• Organic Solvent Recovery and Waste Treatment: Peptide synthesis relies heavily on organic solvents such as DMF and piperidine. The plant must be equipped with compliant exhaust gas treatment facilities (e.g., RTO) and hazardous liquid waste recovery/disposal infrastructure.

• Explosion-Proofing and Occupational Health Protection: Solid-phase synthesis and solvent storage areas must strictly adhere to international explosion-proof standards (e.g., ATEX/Ex) and provide operator exposure control controls and protective equipment.

4. Supply Chain Traceability and Material Management

• Temperature and Humidity Control in Warehousing: Crude and finished peptide products often demand strict temperature controls. Cold storage rooms and controlled-ambient warehouses must feature redundant power supplies, continuous environmental monitoring, and real-time alarm systems.

• Material Traceability: Auditors conduct trace-back checks on complete records—from raw material receipt, testing, and release to production dispensing—to confirm full batch record integrity and material balance compliance.