... produces the product for 10 years, and have a patent, and the content is the highest, quality ... - 4 h - [1,2,4] triazolo [1, 5 - a] pyrimidin - 5 - one vomit; Nauseant phosphodiesterase IV inhibitor soluble in ... water solubility 2 g/L chloroform 83 g/L ethanol 6 g/L DMSO13g/L strongly basic condition is ... propyl-4H-[1,2,4] triazolo [1,5-a]pyrimidin-5-one vomit; nauseant phosphodiesterase IV inhibitor ...