Sano, Mitsuji published the artcileIdentification of carpronium chloride and its metabolite in human urine by field desorption mass spectrometry using deuterium labeling, Safety of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, the publication is Biomedical Mass Spectrometry (1979), 6(11), 467-71, database is CAplus and MEDLINE.
After oral administration of carpronium chloride [13254-33-6], it and a major metabolite N-(3-carbohydroxypropyl)trimethylammonium chloride [6249-56-5] were identified in urine by field desorption mass spectrometry using D labeling. Purification from urine included ion pair extraction with an iodine reagent.
Biomedical Mass Spectrometry published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Safety of 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride.
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https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics