Promethazine hydrochloride, a phenothiazine derivative, is chemically designated as (Â±)-10-[2-(Dimethylamino)propyl] phenothiazine monohydrochloride. Promethazine hydrochloride occurs as a white to faint yellow, practically odorless, crystalline powder which slowly oxidizes and turns blue on prolonged exposure to air.
Confidence votes 11. The new Republic of China fell into chaos after 1912 because of the mistakes of Yuan Shikai. In 1912, after Sun Yixian(AKA Sun Yat-Sen) stepped down as president in favor for him, Yuan Shikai tried to foolishly create another dynasty.However, the military didn't back him and opposition divided the nation.ventually, the KMT retreated o the island of Taiwan and the CPC became the People's Republic of China (PRC) in 1949. There was never a peace agreement between both nations so both governments claim to be the legitimate government of all of China.
Another reason why the Articles of Confederation failed was that Congress didnât have the power to manage the states. This became evident with the Treaty of Paris in 1783.It was supposed to mark the end of the American Revolution, but Congress couldnât even get the states to sign them.Lack of Government Power.nother reason why the Articles of Confederation failed was that Congress didnât have the power to manage the states. This became evident with the Treaty of Paris in 1783.