trimethylglycine molecule, betaine molecular structure, 3d model van der waals

trimethylglycine betaine molecular structure chemical formula isolated model c5h11no2 amino acid atom oxygen nitrogen hydrogen carbon bond molecule study chemistry biology science composition education nutritional atomic skeletal structural drawing schematic supplement beta illustration compound beet line sugar ammonium betain cationic glycine methyl quaternary tmg trimethyl zwitterion zwitterionic van der waals waals