Submitted by György Chityil ... on Sat, 01/20/2018 - 01:15 Hierarchy: NounDescription: {{chemistry}} A precursor of vitamin E that may be prepared from crotonaldehyde.Ngram: trimethylhydroquinoneNgram Text: trimethylhydroquinoneSource: WiktionaryIssue: 0Wiktionary tag: chemistryNgram Count: 1