Search results
Results from the WOW.Com Content Network
Methylpyridinium is prepared by treating pyridine with dimethylsulfate: [2]. C 5 H 5 N + (CH 3 O) 2 SO 2 → [C 5 H 5 NCH 3] + CH 3 OSO − 3. It is found in some coffee products. [3] It is not present in unroasted coffee beans, but is formed during roasting from its precursor chemical, trigonelline. [3]
4-Methylpyridine is the organic compound with the formula CH 3 C 5 H 4 N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pK a of 5.98, about 0.7 units above that of pyridine itself. [1]
This article is a list of notable brand name food products that are presently produced as well as discontinued or defunct, organized by the type of product. This list also includes brand-name beverage mix products.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... and 2,6-di-tert-butyl-4-methylpyridine. [4] See also
Main page; Contents; Current events; Random article; About Wikipedia; Contact us
Isonicotinic acid or pyridine-4-carboxylic acid is an organic compound with the formula C 5 H 4 N(CO 2 H). It is a derivative of pyridine with a carboxylic acid substituent at the 4-position. It is an isomer of picolinic acid and nicotinic acid , which have the carboxyl group at the 2- and 3-position respectively compared to the 4-position for ...
3-Methylpyridine or 3-picoline, is an organic compound with formula 3-CH 3 C 5 H 4 N. It is one of three positional isomers of methylpyridine, whose structures vary according to where the methyl group is attached around the pyridine ring. This colorless liquid is a precursor to pyridine derivatives that have applications in the pharmaceutical ...