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1875 H. Watts Dict. Chem.: 2nd Suppl. 886 Oxyneurine. This base..is identical with betaine from beet-juice.

1904 Proc. Royal Soc. 1903–4 72 348 Four years later he determined its constitution as being trimethylglycine, and Liebreich identified it with oxyneurine, which he obtained by the oxidation of choline, or neurine as he called it.

1997 Life Extension (Nexis) July 8 Trimethylglycine..is sometimes sold under the name ‘anhydrous betaine’..or ‘oxyneurine’.