I usually refer to it as Acetone now rather than pear drops, but know exactly what you mean. Used to work in a place that used lots of acetone and it always smelled like pear drops.
Here is what Wiki says about it ..... (but maybe don't take that too seriously)
The chemical compound acetone (also known as propanone, dimethyl ketone, 2-propanone, propan-2-one and β-ketopropane) is the simplest representative of the ketones. Acetone is a colourless, mobile, inflammable liquid with melting point of −95.4 °C and boiling point of 56.53 °C. It has a relative density of 0.819 (at 0 °C). It is readily soluble in water, ethanol, ether, etc., and itself serves as an important solvent.
I seem to remember reading about Ketones in whisky production. Sometimes I am more sensitive to it and pick it up in Bushmills 16, Glenfiddich, and a few speysiders - other times I can't pick it up at all....
I shall leave it to the chemical experts to explain further .....
Edit : Isopentyl acetate
- flavouring used in Pear Drops
And this could be a fun experiment....
http://faculty.mansfield.edu/bganong/bi ... esters.htm
Last edited by Matt2 on Wed May 02, 2007 4:18 pm, edited 2 times in total.