Resources

Certificates of Analysis (COA)

Download lot-specific Certificates of Analysis for any product in our catalogue. Enter your product number and the lot number printed on the product label to retrieve and download your COA as a PDF.

What is a Certificate of Analysis?

A Certificate of Analysis (COA) is an official quality document issued by the manufacturer for every production lot of a chemical product. It records the analytical test results performed on that specific batch and confirms that the material meets the published specification before release for sale.

Lot-specific Test Results

A COA reports the actual analytical test results measured on your specific production lot — not generic specification values. Each lot is tested independently and may show slightly different values within the specification range.

Specification Compliance Confirmation

The COA confirms that every tested parameter — assay, water content, heavy metals, residue on ignition, and others — meets the published specification for the product and grade. A pass/fail or result-vs-limit column is included for each test.

Regulatory & Audit Support

For pharmaceutical, food, and electronic applications, regulators and auditors require lot-specific COA documentation as part of the supplier qualification and incoming material release process. The COA serves as the primary traceability document linking your purchase to the manufacturing batch.

How to Identify Your Lot Number

The Lot number (also printed as Batch, Lot No., or Lot #) is printed on the product label affixed to the bottle, drum, or bag. It is a unique alphanumeric code assigned during manufacturing — for example "BCFN2318" or "LOT-240815A". Enter this number together with the product number below to retrieve your COA.

Download Your Certificate of Analysis

Enter the Product Number and the Lot Number printed on your product label. Both fields are required.

Found on the product label and your order confirmation.

Printed on the bottle, drum, or bag label as “Lot”, “Lot No.”, or “Batch”.

Where to find your Lot Number

The Lot number is printed directly on the product label — look for the field labelled LOT, Lot No., or Batch. It is typically an alphanumeric code such as BCFN2318 or 240815A. Do not confuse it with the product number or barcode.

Can't find your COA online? Contact our team with your product name, lot number, and order reference and we will supply the document within one business day.

1 CHEM TECH - Chemical Reagents & Solvents