formula string of para-disubstituted benzene functional group

para-disubstituted benzene (functional group) | formula string

RCCHCHCRCHCH

12 characters

character | C | H | R plot rule | | |

character | C | H | R count | 6 | 4 | 2 fraction | 50% | 33.3% | 16.7%

substring | CC | CH | CR | HC | RC count | 1 | 4 | 1 | 3 | 2

R | CC | H | C | H | C | R | C | H | C | H 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1