STRUCTURAL REPRESENTATION EXTENDED 2甲基-5-乙基庚烷 HHHhHH H H H HH hH H-C-H H-C-H H LIYING 2021/2/10LIYING 2021/2/10 STRUCTURAL REPRESENTATION EXTENDED H C H H C H C C H H C H H C H C C H H C H H H H H H H H H C H H •2-甲基-5-乙基庚烷