What?
It's losing its CHEMICAL potency.
Breaking Bad Season 2, Episode 9
Also in the CHEMICAL industry,
Money Heist Season 1, Episode 12
"The lab’s CHEMICAL report revels
that those products were used"
Money Heist Season 1, Episode 8
Chemical bonds are what
make matter matter.
Breaking Bad Season 2, Episode 7
Has a strong toxic
CHEMICAL smell.
The Big Bang Theory Season 5, Episode 2