caffeine ring | silver US Size:7 the 14 teeth of the

the 14 teeth of the maxillary arch arranged in their natural order

Two serpents around a winged staff

The simplest surface with one side and one edge

underpins nuclear binding energy

caffeine ring | silver US Size:7 the 14 teeth of theCaffeine ring sterling silver If you cannot read, write, or run a clinic before your second cup, you already know what the ring carries. Caffeine, 1,3,7 trimethylxanthine, the most consumed psychoactive drug on the planet. Worn here as a sterling silver ring in US sizes 5 to 9. The Chemistry of Caffeine Caffeine is 1,3,7 trimethylxanthine, structurally one methyl group more than theobromine (3,7 dimethylxanthine). It was first isolated from coffee