benzoin Search Term: benzoinSource Category: ASSISTBenzoin is on the Recommended Chemicals list for Australian schools. Synonyms: 2-hydroxy-1,2-diphenylethanone, 2-hydroxy-2-phenylacetophenone, α-hydroxybenzyl phenyl ketone; CAS Number: 119-53-9; Signal Word: None. Tags: 119-53-9α-hydroxybenzyl phenyl ketone