Vanillin

描述

Vanillin Basic information
Product Name: Vanillin
Synonyms: Vanillin cas:121-33-5;VANILLINE;VANILLIC ALDEHYDE;VANILLIN;VANILLA;VANILLINUM;Vanilin;VANILLIN FOOD GRADE,100%FINE MESH
CAS: 121-33-5
MF: C8H8O3
MW: 152.15
Standard: CP, food grade
Assay: 99%
Appearance: white powder
Packaging : 25KG / cardboard drum
Uses Vanillin is a flavorant made from synthetic or artificial vanilla which can be derived from lignin of whey sulfite liquors and is syntheti- cally processed from guaiacol and eugenol. the related product, ethyl vanillin, has three and one-half times the flavoring power of vanillin. vanillin also refers to the primary flavor ingredient in vanilla, which is obtained by extraction from the vanilla bean. vanillin is used as a substitute for vanilla extract, with application in ice cream, desserts, baked goods, and beverages at 60–220 ppm.
Uses An intermediate and analytical reagent.
Uses Pharmaceutic aid (flavor). As a flavoring agent in confectionery, beverages, foods and animal feeds. Fragance and flavor in cosmetics. Reagent for synthesis. Source of L-dopa.
Uses The primary component of Vanilla bean extract.
Uses Labelled Vanillin. Occurs naturally in a wide variety of foods and plants such as orchids; major commercial source of natural vanillin is from vanilla bean extract. Synthetically produced in-bulk fro m lignin-based byproduct of paper processes or from guaicol.
Chemical Properties Vanillin is found in many essential oils and foods but is often not essential for their odor or aroma. However, it does determine the odor of essential oils and extracts from Vanilla planifolia and Vanilla tahitensis pods, in which it is formed during ripening by enzymatic cleavage of glycosides.
Vanillin is a colorless, crystalline solid (mp 82–83°C) with a typical vanilla odor. Because it possesses aldehyde and hydroxy substituents, it undergoes many reactions. Additional reactions are possible due to the reactivity of the aromatic nucleus. Vanillyl alcohol and 2-methoxy-4-methylphenol are obtained by catalytic hydrogenation; vanillic acid derivatives are formed after oxidation and protection of the phenolic hydroxy group. Since vanillin is a phenol aldehyde, it is stable to autoxidation and does not undergo the Cannizzaro reaction. Numerous derivatives can be prepared by etherification or esterification of the hydroxy group and by aldol condensation at the aldehyde group. Several of these derivatives are intermediates, for example, in the synthesis of pharmaceuticals.

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