We ran several tests on the residue, but couldn’t identify all its components.
Trish heads to a local laboratory where she had Simpson’s combat inhaler analyzed. According to the sign outside the In-Universe Address is 532 W 41st Street.
The exterior of the building is the back of the New York Museum of Arts and Design, located at 2 Columbus Circle. The entrance Trish uses is off W 58th Street, just across the street from her scenes leaving the ZCN Studios, earlier in the episode. The interior hallway is presumed to be part of the Broadway Stages, as it looks very much like the hallways of the 29th Precinct seen in Luke Cage and The Defenders.
MAP
(Jessica Jones S02E10, 2018)
MCU: Location Scout 