Phenylphosphine

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What Wikipedia says

Phenylphosphine is an organophosphorus compound with the chemical formula C6H5PH2. It is the phosphorus analog of aniline. Like other primary phosphines, phenylphosphine has an intense penetrating odor and is highly oxidizable. It is mainly used as a precursor to other organophosphorus compounds.

Excerpt from the Wikipedia article “Phenylphosphine”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Emeldir (talk), Public domain, via Wikimedia Commons.