coclimber

I'm new to cycling, and I have a new bike with an Ultegra 10s drivetrain. I'd like to get a chain replacement that can be removed for cleaning: I understand the 10s chains are susceptible to failing once they've been removed/cleaned/reinstalled. I also wonder if an after market chain might be less expensive than the Shimano-branded chains.

Are there any alternatives on the market that have the master links (is that what they're called?) that can be easily removed and replaced, for the super-narrow Ultegra 10sp chains? Also, are the DuraAce 10s chains compatible? Campy 10s chains?

Thanks in advance/