Truth, clarity, transparency
Look closer at the line everyone skips
A certificate of analysis is a set of measurements. This journal is about the one measurement the laboratory compound sector keeps leaving out: the numerical endotoxin value.
Truth, clarity, transparency
A certificate of analysis is a set of measurements. This journal is about the one measurement the laboratory compound sector keeps leaving out: the numerical endotoxin value.
The numerical endotoxin value
Most certificates print purity as a number and endotoxin as a word. A pass with no measured value and no stated limit cannot be checked by anyone who relies on it. Here is what the word hides, what the sector prints today, and what a complete endotoxin line carries.
Read the articleThe measured endotoxin value of every lot we currently supply, each printed beside the limit it was judged against on its signed certificate.
Crescent Bioresearch supplies laboratory compounds and reagents for in-vitro research, from Albany, New York. Every lot is tested by an independent third-party laboratory for purity and for bacterial endotoxin before it is listed, and the full signed certificate is published under its lot number.
Purity, identity and content are measured and printed as numbers across the sector. Endotoxin, the contaminant most likely to compromise a cell-based model, usually is not. We print the measured value on every lot, and we write here about why that number belongs on every certificate.