propanethial s-oxide, tear gas from sliced onions, chemical formula and structure

propanethial oxide propanethial s-oxide onion tear gas chemical formula lachrymator agent lachrymator substance tear tears tearing stinging organosulfur compound sulfine thiocarbonyl volatile liquid eye contact painful thiopropanal sulfinylpropane sulfur sulfoxide allium distinctive organic skeletal molecule structural structure chemical molecular science research chemistry composition biochemistry molecular flat black isolated white background vector