Vanillin

Vanilin, kimyada 4-hidroksi-3-metoksibenzaldehid ismiyle bilinen, tabii olarak vanilyanın meyvesinde glikozit halinde bulunan hoş kokulu bir madde.
İğne kristaller halinde, renksiz, ergime noktası 82 °C olan bu aromatik bileşik, alkolde, eterde ve yağlarda soğukta dahi çok iyi çözünür Fakat kaynar suda çok az çözünür.
Kapalı formülü C8H8O3 olan vanilinde hidroksi(-OH) ve karbonil(-C=O) grupları bulunmaktadır. Vanilya bitkisinden elde edildiği gibi sentetik olarak da elde edilir

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