Hexamethylene tetramine or hexamine is also used as a food additive as a preservative (INS number 239). It is approved for usage for this purpose in the EU, where it is listed under E number E239, however it is not approved in the USA, Russia, Australia, or New Zealand.ogether with 1,3,5-trioxane, hexamethylenetetramine is a component of hexamine fuel tablets used by campers, hobbyists, the military and relief organizations for heating camping food or military rations.
Define murine. murine synonyms, murine pronunciation, murine translation, English dictionary definition of murine. adj. 1. Of or relating to a rodent of the subfamily Murinae, which includes the house mouse and the brown rat. 2. Caused, transmitted by, or affecting such...
A purine is a heterocyclic aromatic organic compound. It consists of a pyrimidine ring fused to an imidazole ring. Purines, which include substituted purines and their tautomers, are the most widely occurring nitrogen-containing heterocycle in nature.Purines and pyrimidines make up the two groups of nitrogenous bases, including the two groups of nucleotide bases.wo of the five bases in nucleic acids, adenine (2) and guanine (3), are purines. In DNA, these bases form hydrogen bonds with their complementary pyrimidines thymine and cytosine, respectively.