Is CTSI on Coinbase?

Excuse me, I was just wondering if you could clarify something for me. I've been looking into cryptocurrencies lately and I've come across CTSI. It seems to have a lot of potential, but I can't seem to find it listed on Coinbase. Could you possibly confirm whether or not CTSI is currently available for trading on Coinbase? I'd really appreciate your help with this. Thank you in advance!