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CAS number 123-11-5 YesY
PubChem 31244
ChemSpider 28984 YesY, 21105937
UNII 9PA5V6656V YesY
Jmol-3D images Image 1
Molecular formula C8H8O2
Molar mass 136.15 g/mol
Density 1.119 g/cm³ at 15 °C
Melting point 0 °C (32 °F; 273 K)
Boiling point 248 °C (478 °F; 521 K)
Flash point 108 °C (226 °F; 381 K)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

4-Anisaldehyde (also: p-anisaldehyde, anisic aldehyde, anise aldehyde) is an organic compound that is commonly encountered in the fragrances, both synthetic and natural. The compound consists of a benzene ring with an aldehyde and a methoxy group. It is a clear liquid with a strong aroma. Two related isomers ortho-anisaldehyde and meta-anisaldehyde are also known but less commonly encountered. It provides sweet, floral and strong almond odor. Atul Ltd, India is the largest manufacturer of Anisaldehyde in the world.


Anisaldehyde is prepared commercially by oxidation of methoxytoluene (p-cresyl methyl ether) using manganese dioxide. It can also be produced by oxidation of anethole, a related fragrance that is found in some alcoholic beverages.[2]


Being structurally related to vanillin, anisaldehyde is a widely used in the fragrance and flavor industry.[2] Anisaldehyde is used as an intermediate in the synthesis of other compounds important in pharmaceuticals and perfumery. ortho-Anisaldehyde has a scent of licorice.

A solution of para-anisaldehyde in acid and ethanol is a useful stain in thin layer chromatography. Different chemical compounds on the plate can give different colors, allowing easy distinction.


  1. ^ Merck Index, 11th Edition, 693
  2. ^ a b Karl-Georg Fahlbusch, Franz-Josef Hammerschmidt, Johannes Panten, Wilhelm Pickenhagen, Dietmar Schatkowski, , Kurt Bauer, Dorothea Garbe and Horst Surburg "Flavors and Fragrances" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2003. doi:10.1002/14356007.a11_141