Uni-chem Chemical Reagents Certificate Of Analysis File
When you open a Uni-Chem COA (delivered digitally or physically), you will find the following standardized sections:
| Section | Description | | :--- | :--- | | Header Info | Product name, CAS number, Uni-Chem catalog #, batch/lot number, and manufacture date. | | Specification Table | Required limits (e.g., "Assay ≥ 99.5%") vs. actual test results. | | Test Methods | References to USP, EP, JP, or ASTM standards used (e.g., "By HPLC" or "By Titration"). | | Analytical Data | Raw and calculated results for assay, impurities, water content (K.F.), residue on ignition, etc. | | Certification | Signature (or digital stamp) of the Uni-Chem Quality Assurance Manager. | | Shelf Life & Storage | Retest date and recommended storage conditions to maintain the certified quality. |
Every Uni-Chem product label includes a unique QR code and Batch ID. Scan it or enter it at www.uni-chem.com/coa to instantly download the PDF. No more lost paperwork. uni-chem chemical reagents certificate of analysis
A typical Uni-Chem CoA contains the following sections:
| Component | Description | |-----------|-------------| | Product Name & Code | e.g., “Uni-Chem Sodium Chloride, AR Grade, Cat# UC-1001” | | Batch/Lot Number | Unique identifier for traceability | | Manufacturing Date | Date of production | | Retest/Expiry Date | Recommended date for re-analysis | | Appearance | Physical description (white crystalline powder, clear liquid, etc.) | | Assay (Purity) | Percentage purity (e.g., ≥99.5% by titrimetry) | | Identity Tests | Confirmation via IR, Na⁺/Cl⁻ spot tests, or retention time (HPLC) | | Impurities | Limits for chlorides, sulfates, heavy metals (as Pb), iron, etc. | | Loss on Drying | Moisture content (e.g., ≤0.5% w/w) | | Residue on Ignition | Non-volatile inorganic residue | | Solubility | Compliance with specification | | Test Methods | References to standard procedures (AOAC, USP, in-house) | | Signature/Approval | Quality control officer’s name and date | When you open a Uni-Chem COA (delivered digitally
In the high-stakes world of analytical chemistry, pharmaceutical research, and industrial quality control, a chemical is only as reliable as its documentation. When a scientist opens a bottle of solvent or a vial of standard, they are not just looking for a formula—they are betting the validity of their experiment on the purity of that substance.
This is where the Certificate of Analysis (CoA) becomes the most critical document in the laboratory. | | Test Methods | References to USP,
Among global manufacturers, Uni-Chem has established a reputation for rigorous quality assurance. Their Chemical Reagents Certificate of Analysis is not merely a piece of paper; it is a legally binding fingerprint of the product’s identity, purity, and physical characteristics.
In this article, we will dissect the Uni-Chem CoA, explain why it matters for compliance (ISO, GMP, USP), and teach you how to read every line to ensure your research stands on solid ground.