When Parker is looking through the folders she finds in Hoffman's safe, the molecular model shown is the chemical thujone, a chemical found in absinthe and thought to be responsible for its alleged psychedelic effects.
The corrupt pharmaceutical company was named Devlin McGregor. Devlin McGregor was also the name of the "bad-guy" company in the The Fugitive (1993), an episode of Boston Legal (2004) (The Cancer Man Can) and the pilot of Suits (2011).
The title of the episode (and the name of the con the team employs) reference the fact that drug trials in this country are always "double blind" for greater security and accuracy of results.
Katie Lowes, who plays Ashley, mentions she wanted to hack computers - ironically, in the TV series Scandal, she plays a bumbling lawyer with zero skills who becomes an expert hacker. Parker also asks Hardison to do a background check on Katie's character saying she could be a spy. In Scandal, Katie briefly played a spy as well, for a black ops CIA program in the United States.