12345678910111213141516KeywordaldehydeFrequency#3582Strokes16ReadingsquánMnemonic酉 (chemical) gives the meaning and 荃 the sound.Stroke orderComposed of酉wine荃fragrant plantUsed in vocabulary甲醛jiǎquánformaldehyde (HCHO)醛quánaldehyde乙醛yǐquánacetaldehyde H3CCHO; ethanal酚醛fēnquánphenolic aldehyde; phenolic resin (used to manufacture bakelite)糠醛kāngquánfurfural (chemistry)醛类quánlèi(chemistry) aldehyde丁醛dīngquánbutyraldehyde; butanal聚甲醛jùjiǎquánpolyformaldehyde (CH2O)n醛固酮quángùtóngaldosterone丙烯醛bǐngxīquánacrolein CH2CHCHO脲醛niàoquánurea formaldehyde甘油醛gānyóuquánglyceraldehyde (CH2O)3