Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
Chlorine is a chemical element with symbol Cl and atomic number 17.
Hydrogen is a chemical element with symbol H and atomic number 1.
1,1,1,2,3,3,3-Heptafluoropropane, also called heptafluoropropane, FM200, HFC-227 or HFC-227ea (ISO name), as well as apaflurane (INN), is a colourless, odourless gaseous halocarbon commonly used as a gaseous fire suppression agent.