Prostaglandin F2-alpha(PGF-2 alpha) is a stable prostaglandin that stimulates the contraction of uterine and bronchial smooth muscle and produces vasoconstriction (tightening) in some blood vessels. As a pharmaceutical, the generic name of PGF-2 alpha is dinoprost.
  The most common compound on Earth is water. It's formula is H2O, meaning that in one water molecule, there are two hydrogen (H) atoms and one oxygen (O) atom.  Anoth â¦ er common compound is sodium chloride, which most people know as table salt.ydrogen is the most common atom in the universe, and oxygen is the thrid â¦ most common, so water has to be the number one compound.
Submit. Â· just now. Report Abuse. Water (H2O) is the most abundant compound *ON* the Earth. But while I'm answering, here are free (!) bonus answers: Silicon dioxide (SiO2) is the most abundant compound *IN* Earth's crust (what's below that has not been accurately quantified, only estimated).ubmit. Â· just now. Report Abuse. Water (H2O) is the most abundant compound *ON* the Earth. But while I'm answering, here are free (!) bonus answers: Silicon dioxide (SiO2) is the most abundant compound *IN* Earth's crust (what's below that has not been accurately quantified, only estimated).