8. A barbiturate, C8H12N2O3, that is a white crystalline powder and is used as a sedative and hypnotic especially in the form of its soluble salt, sodium barbital.

• 巴比妥巴比妥类药物的一种，C8H12N2O3，白色晶体粉末，用作镇静剂和催眠剂，尤指其可溶性盐，钠巴比妥的形式收藏指正