Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Your search for SULFUR HEXAFLUORIDE OR "DISTEAROYLPHOSPHATIDYLCHOLINE," "DL-" OR SODIUM "1,2-DIPALMITOYL-SN-GLYCERO-3-PHOSPHO-(1'-RAC-GLYCEROL)" did not return any results.
Your search may be too specific. Try using fewer or broader search words.