Quality Control
We implement closed‑loop full‑process quality management, covering raw material incoming inspection, in‑line production monitoring and finished‑product testing. Equipped with precision analytical instruments, we test key indicators such as purity, moisture and trace impurities batch‑by‑batch. Complete COA documents are available with full traceability across the whole production chain.
Three-Stage Quality System
Incoming Inspection
Every raw material batch tested against specifications before entering production. Certificate of Analysis verified for all suppliers.
In-Process Monitoring
Real-time process parameter monitoring with DCS systems. Automated sampling and testing at critical control points throughout production.
Final Release
Comprehensive end-product testing against international standards. Batch release only after all specifications are confirmed and documented.
Testing Methods & Standards
Chromatographic Analysis
HPLC and GC-MS analysis for purity, impurity profiling, and molecular identification per USP and EP standards.
Wet Chemistry
Classical titration, gravimetric, and colorimetric methods for assay determination and limit testing.
Physical Testing
Comprehensive physical property measurement including viscosity, density, refractive index, and particle size distribution.
Stability Studies
Long-term and accelerated stability testing per ICH guidelines ensuring product quality throughout shelf life.
Quality Without Compromise
We stick to bottom‑line quality principles and never compromise quality for output or cost. Our internal standards exceed general industry specifications. Quality awareness runs through every procedure to avoid quality fluctuation, delivering consistent and reliable n‑Propanol for global customers.
