The chemical NECA has a designated molecular formula of C12H16N6O4 and a molecular weight of 308.298 g/mol. Synonyms may include: Adenosine-5'-(N-ethylcarboxamide), 1-(6-Amino-9H-purin-9-yl)-1-deoxy-N-ethyl-beta-D-ribofuranuronamide, 5'-N-Ethylcarboxamidoadenosine, 5'-N(Sup 6)-Ethylcarboxamidoadenosine (ChemID). NECA has been assigned a MeSH pharmacological action of: Antineoplastic.