Invitrogen™ NP-EGTA (o-Nitrophenyl EGTA, Tetrapotassium Salt, cell impermeant

Invitrogen™ NP-EGTA (o-Nitrophenyl EGTA, Tetrapotassium Salt, cell impermeant

NP-caged EGTA, potassium salt is a cell-impermeant photolabile chelator that exhibits a high selectivity for Ca²⁺ upon UV illumination, its Kd increases from 80 nM to >1 mM. The NP-EGTA salt can be complexed with Ca²⁺ to generate a caged calcium complex that will rapidly deliver Ca²⁺ upon photolysis