This app checks the 677 chemical names in the NIOSH PDF and looks for a match ANYWHERE in the description of the ~3000+ entries in the ERG Guide. It does a case blind check, but will not catch fragments if name is wacky in NIOSH Guide, e.g., "1,2-Dibromo-3-chloropropane" is a name in the NIOSH table. It must find that string exactly.