In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Application of multivariate statistics for the classification of coffee headspace profiles, published in 1984-02-29, which mentions a compound: 3194-15-8, mainly applied to coffee volatile substance statistic classification, Category: benzoxazole.
Applying a recently developed methodol. for coffee headspace anal., 15 coffees consisting of beans from 3 different origins and roasted at 5 predetermined levels were analyzed on repeated occasions, resulting in a collection of 55 capillary gas chromatog. headspace profiles. With the help of multivariate statistics, attempts have been made to classify these profiles into coffee variety and(or) roasting categories. First, stepwise discriminant anal. (SDA) was applied to select from the bulk of headspace components the most significant ones for discriminating the different profiles. The corresponding data subsets were then analyzed by canonical (CA) and discriminant anal. (DA). With use of only 9 components, the 55 profiles could be classified into the 15 coffee categories with a 90% success rate. Doubling the number of components brought the success rate to 98%. Profile assignment appeared to result from the combined information provided by components belonging to 4 chem. families; aliphatic aldehydes, furans, pyrroles or pyrazines, and thiophenes. From the point of view of coffee chem., the canonical anal. of headspace profiles also proved to be an interesting approach. Various information on the formation processes of the different components could be derived from their vector configuration in the canonical space.
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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem