Labile
/ˈleɪbaɪl/
adjective
Liable to slip, err, fall, or apostatize.
Apt or likely to change.
(of a compound or bond) Kinetically unstable; rapidly cleaved (and possibly reformed).
“Certain drugs can be conjugated to polymer molecules with a linkage that is labile at low pH to effect controlled release in a cellular endosome.”
Synonyms: unstable