3d image of theobromine skeletal formula

theobromine xantheose diurobromine dimethylxanthine alkaloid theobroma cacao cacao plant bitter additive cosmetics chocolate tea kola nut purine dimethyl xanthine theophylline caffeine paraxanthine 7-methylxanthine cocoa bicolor ilex paraguariensis camellia sinensis guarana berry yerba mate vomitoria guayusa tea carob phosphodiesterase inhibitor bronchodilator vascular smooth muscle dog poisonous milk sweet taste receptors herbal phytochemical phytotherapy herb natural herbalism pharmacognosy pharmacopoeia 3d molecular formula