Friday, July 20, 2012

Molecule of the day: trinitrobenzenesulfonic acid

The molecule of the day is trinitrobenzenesulfonic acid (TNBS).

It's often used to neutralize peptide terminal amino groups, but will react with any primary amine, and can also be used to measure the bilayer integrity of membranes containing phosphatidylethanolamine:

(Sadly, the "submitted" reference appears to have never made it into print.)

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