Specification
Description
TMAO (TMAO) is the organic compound in the class of amine oxides with the formula (CH3)3NO. This colorless solid is usually encountered as the dihydrate. It is a product of the oxidation of trimethylamine and a common metabolite in animals. It is an osmolyte found in saltwater fish, sharks, rays, molluscs, and crustaceans. It is a protein stabilizer that may serve to counteract urea, the major osmolyte of sharks, skates and rays. It is also higher in deep-sea fishes and crustaceans, where it may counteract the protein-destabilizing effects of pressure. TMAO decomposes to trimethylamine (TMA), which is the main odorant that is characteristic of degrading seafood.
Synonyms
Trimethyloxamine
IUPAC Name
N,N-Dimethylmethanamine oxide
Canonical SMILES
C[N+](C)(C)[O-]
InChI
InChI=1S/C3H9NO/c1-4(2,3)5/h1-3H3
InChI Key
UYPYRKYUKCHHIB-UHFFFAOYSA-N
Melting Point
220-222 °C(lit.)
Solubility
Soluble in water
Appearance
Pale yellow solid
Storage
Hygroscopic, room temperature, under inert atmosphere
Monoisotopic Mass
75.068413911
Topological Polar Surface Area
18.1 Ų