Caffeine and Caffeine Metabolites

Stable Isotope Labeled Caffeine and Caffeine Metabolites

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705578 5-Acetylamino-6-amino-3-methyluracil-(ring-13C4,15N2, amino-15N) ≥98 atom %, ≥98% (CP)
603295 Caffeine-13C3 solution 1 mg/mL in methanol, 99 atom % 13C, drug standard
485365 Caffeine-(trimethyl-13C3) 99 atom % 13C, 99% (CP)
725625 Caffeine-(trimethyl-d9) 99 atom % D, 98% (CP)
705632 1,3-Dimethyluric acid-2,4,5,6-13C4-1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705640 1,7-Dimethyluric acid-2,4,5,6-13C4-1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705381 1,7-Dimethylxanthine-2,4,5,6-13C4-1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705373 1,7-Dimethylxanthine-(dimethyl-d6) ≥98 atom % D, ≥97% (CP)
705357 3,7-Dimethylxanthine-(dimethyl-d6) 98 atom % D, 98% (CP)
705608 1-Methyluric acid-2,4,5,6-13C4, 1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705616 3-Methyluric acid-2,4,5,6-13C4, 1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705624 7-Methyluric acid-2,4,5,6-13C4, 1,3,9-15N3 99 atom % 13C, 98 atom % 15N, 97% (CP)
705195 1-Methylxanthine-2,4,5,6-13C4, 1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705217 3-Methylxanthine-2,4,5,6-13C4, 1,3,9-15N3 ≥98 atom %, ≥98% (CP)
705209 1-Methylxanthine-(methyl-13C,d3) 98 atom % 13C, 98 atom % D, 97% (CP)
705225 7-Methylxanthine-2,4,5,6-13C4, 1,3-15N2 (with variable 15N labeling at N9) ≥98 atom %, ≥98% (CP)
705667 1,3,7-Trimethyluric acid-2,4,5,6-13C4-1,3,9-15N3 ≥98 atom %, ≥98% (CP)