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ONAD→vanillin

vanillin

Flag: gbEnglishOxford New American Dictionary
vanillin /vəˈnilin, , vəˈnɪlɪn , ˈvanələn, ˈvænələn /
▸ noun Chemistry a fragrant compound which is the essential constituent of vanilla.
Alternative name: 3-methoxy-4-hydroxybenzaldehyde; chemical formula: CH3OC6H3(OH)CHO.
– ORIGIN mid 19th century ; from vanilla + -in1.