異丁烷

isobutane

different / other / hetero- / unusual / strange / surprising / to distinguish / to separate / to discriminate

male adult / the 4th of the 10 Heavenly Stems 天干[tian1 gan1] / fourth (used like "4" or "D") / small cube of meat or vegetable / (literary) to encounter / (archaic) ancient Chinese compass point: 195° / (chemistry) butyl

butane

alkane