Antoine Laurent Lavoisier, sometimes referred to as Antoine Lavoisier after the French Revolution, was a French nobleman and chemist whose work is considered pivotal to the 18th century Chemical Revolution [Wikipedia]. Here's a summary of his key achievements:
Lavoisier's contributions extended beyond the purely scientific. He was also a social reformer who believed science should benefit the public good. He conducted research to improve agriculture and gunpowder production [Wikipedia].
His life, however, ended tragically. During the French Revolution, he was accused of tax fraud and executed in 1794 [Wikipedia]. Despite this, his scientific legacy continues to inspire chemists today.