词条	Number of possible alkane isomers
释义	Number of possible alkane isomers Table Number of possible alkane isomers molecular formula number of constitutional isomers C3H8 1 C4H10 2 C5H12 3 C6H14 5 C7H16 9 C8H18 18 C9H20 35 C10H22 75 C15H32 4,347 C20H42 366,319 C30H62 4,111,846,763 See as table:
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