Which medical term means an abnormal increase in the forward curvature of the lower or lumbar spine? - 4684768
The molecular structure of caffeine. Caffeine belongs to the family of heterocyclic compounds known as purines. It has the systematic name 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione; it is also known as 1,3,7-trimethylxanthine, and 1,3,7-trimethyl-2,6-dioxopurine.
Caffeine is classified as a central nervous system stimulant and it belongs to xanthine chemical group. There are three distinguished compounds in xanthine group: Caffeine: 1,3,7-trimethylxanthine. Sources: Coffee, tea, cola nuts, mate, guarana.