Syn-Propanethial-S-oxide

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Science and technology

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What Wikipedia says

syn-Propanethial S-oxide (or (Z)-propanethial S-oxide), a member of a class of organosulfur compounds known as thiocarbonyl S-oxides (formerly "sulfines"), is a volatile liquid that acts as a lachrymatory agent (triggers tearing and stinging on contact with the eyes).

Excerpt from the Wikipedia article “Syn-Propanethial-S-oxide”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Jü, Public domain, via Wikimedia Commons.