TEMPERATURE 298 K SAMPLE guanine SAMPLE_CONC saturated SAMPLE_UNITS N/A SOLVENT D2O REFERRENCE DSS REFERRENCE_CONC 500 REFERRENCE_UNITS uM pH 12 SPECT_MANUFACTURER Bruker SPECT_MODEL DMX SPECT_FIELD_STRENGTH 400 EXPERIMENT_1 1D 1H EXPERIMENT_2 2D [1H,1H]-TOCSY EXPERIMENT_3 1D 13C EXPERIMENT_4 1D DEPT90 EXPERIMENT_5 1D DEPT135 EXPERIMENT_6 2D [1H,13C]-HSQC VENDOR Sigma VENDOR_PROD_NAME guanine VENDOR_PROD_CODE g11950 COLLECTED_BY Madison Metabolomics Consortium