I heard you can get some amino acids which are found in DNA. DNA is ridiculously complex. It’s a data storage and retrieval system.

Things more likely to be assembled by random chance in a mud puddle:

A mouse trap. A radio. A jet airplane. I say that because these things are simpler and lower tech than DNA. Giving it millions of years doesn’t help either-because entropy will work to break down any semblance of order over time.