Don’t just take our word for it.
Quality claims are easy to make. Where analytical documentation exists for a product, we would rather you read it than take our word for the summary.
What a Certificate of Analysis shows
A COA reports analytical information about a tested product or sample. Depending on the material and the testing performed, it may cover identification, the method used, and the results reported against it.
Availability varies by product and lot. The example shown is an illustration of the fields a document may contain, not a result for any specific material.
Request documentation for your order
Looking for information on something you purchased? Send us the details and we will locate what is available for that material.
Include these three things
- The product name
- The lot or batch number, if you have it
- The order number the product arrived on
Documentation is provided where it is available for the specific material supplied.
Four terms worth knowing
You do not need to be an analytical chemist to value transparency. These are the terms you are most likely to meet on product documentation.
HPLC
High-Performance Liquid Chromatography separates and measures components within a sample. It can be used to evaluate the relative purity of a tested material.
Mass spectrometry
Measures the mass-to-charge ratio of ions, and may be used as part of confirming the molecular identity of a compound.
Identity
Indicates whether the tested material corresponds with the expected compound — a different question from purity.
Lot or batch
Connects a document to a specific production run, so results are tied to the material you actually received.
More than a number on a label
Purity matters, but a percentage alone does not tell the whole story. We look at quality more broadly: sourcing, available testing, specifications, packaging, storage and handling. Even the vial.
Confidence in a research product comes from understanding more than one number.
Important testing information
Certificates of Analysis and other analytical reports reflect the specific sample, product, lot, batch and testing conditions identified in the document. Results should not be assumed to apply to a different product, lot or batch unless specifically stated.
Testing methods and the scope of analysis may vary by product. Refer to the applicable documentation for the tests performed and the results reported.
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