N-(2-羟乙基)哌嗪-N-乙磺酸钠盐/N-(2-羟乙基)哌嗪-N'-(2-乙磺酸)钠盐/2-羟乙基-1-哌嗪乙烷磺酸钠盐/HEPES钠盐/4-(2-羟乙基)-1-哌嗪乙烷磺酸钠/4-羟乙基哌嗪乙磺酸