Trimethylamine N-oxide Trimethylamine N-oxide Trimethylamine "N"-oxide (TMAO) is an organic compound with the formula (CH)NO. It is in the class of amine oxides. Although the anhydrous compound is known, trimethylamine "N"-oxide is usually encountered as the dihydrate. It is a product of the oxidation of trimethylamine, a common metabolite in animals. Both the anhydrous and hydrated materials are white, water-soluble solids. Trimethylamine "N"-oxide is an osmolyte found in saltwater fishes, sharks, rays, molluscs, and crustaceans. It is considered as a protein stabilizer that may serve to counteract urea, the major osmolyte of sharks, skates and rays. It is also higher in deep-sea
U Should've Known Better April 2004, and features rapper Young Buck appears in the video as her love interest. The video follows the single's topic of a misunderstandings in a relationship, showing Monica as the girlfriend, with the boyfriend held in a Mexico hold-prison. With Monica getting help from a guy friend, her boyfriend's best friend sees them and thinks otherwise. Monica drives through the desert of Mexico to get him out of prison. The video ends with Monica and her boyfriend hugging at the end and going home together. The "U Should've Known Better" video premiered worldwide in May 2004 at the end