Soubor:Ectylurea.svgDescriptionEctylurea.svg English: Skeletal formula of ectylurea (brand names Nostyn, Levanil)—an obsolete sedative. Created with ChemDoodle 8.0.0.3b and
Soubor:Crotonyl chloride.svgDescriptionCrotonyl chloride.svg English: Structure of crotonyl chloride; but-2-enoyl chloride; Crotonoyl chloride Deutsch: Crotonsäurechlorid Date 3