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Bottle of denatured alcohol containing cetylpyridinium
Cetylpyridinium Chloride
In the Advanced Chemical Experimentation course, the lecturer responsible for the Organic Chemistry section, the great Julio Urones, after we had worked with 96° ethyl alcohol, asked us to include in the report for his practical the chemical formula of cetylpyridinium chloride, a common antiseptic present in the vast majority of commercial alcohols. After marking the reports, he gave us this fact: only one girl out of the forty-eight students enrolled in the course got the formula right:
Formula of cetylpyridinium chloride
The lecturer gave us this piece of advice (which I copied in class and transcribe literally):
"The essential thing when searching websites is to use your judgement – choose what’s good, because there are good things, but there are a thousand times more bad things."
3 March 2007
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