Propofol Injectable Emulsion, USP is a sterile, nonpyrogenic emulsion containing 10 mg/mL of propofol suitable for intravenous administration. Propofol is chemically described as 2,6-diisopropylphenol. The structural formula is:
Propofol is slightly soluble in water and, thus, is formulated in a white, oil-in-water emulsion. The pKa is 11. The octanol/water partition coefficient for propofol is 6761:1 at a pH of 6 to 8.5. In addition to the active component, propofol, the formulation also contains soybean oil (100 mg/mL), glycerin (22.5 mg/mL), egg phospholipid (12 mg/mL); and edetate disodium (0.005%); with sodium hydroxide to adjust pH. Propofol Injectable Emulsion, USP is isotonic and has a pH of 6 to 8.5.