Hi.

thanks for participating in "Identify the molecule" contest.
Even though the answer for the 2nd riddle is
Rhodopsin
you'll get 50 STEM, because there were just 2 participants this time with guesses provided,
and there's no correct answer given by users.

and according to the rules of this contest

If there's no correct answers provided by the users,
then 100 STEM will be distributed equally among all participants with guesses.

I'll transfer them in 24 hours.

The molecule (Rhodopsin) of the riddle provided in the post will be discussed in the
"“Identify the molecule" contest #2 [Rhodopsin]. Discussion. Winner announcement" post
which I'll publish next week.

and thanks for the interest for this contest.