Linked from
The 17 pages that link to Ethane, each with the reason it gives.
MethaneCompared with: Adding one carbon atom makes ethane methane’s nearest alkane neighbor.
EthyleneCompared with: Adding hydrogen across ethylene’s double bond produces ethane.
EtheneCompared with: Adding hydrogen to ethene removes the double bond and yields ethane.
EthanethiolCompared with: Replacing one hydrogen in ethane with –SH gives ethanethiol.