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Theobromine is a xanthine alkaloid found naturally in cacao and some teas, and is the major flavor of chocolate. The structure of theobromine is related to that of caffeine, but mising one methyl group. Not surprisingly, theobromine has a similar mode of action to caffeine and also binds to adenosine receptors, but with less affinity than caffeine. Theobromine has a lower stimulatory effect than caffeine due to this binding difference.
In this design, nitrogen and oxygen atoms are indicated by text embedded in the spheres and all double bonds are represented.
The pendant is approximately 2 cm (0.8 inches) wide and 2.5 cm (1 inch) long below the loop.
The pendant is 3D printed in 14K gold plated brass or 14K rose gold plated brass, finished with a 45 cm/18 inch long gold plated or rose gold plated silver chain*, and is ready for gift giving with a gift box, polishing cloth, and care instructions.
*While a 45 cm/18 inch fits most, other chain lengths are available. At checkout, write a note indicating your preference.