8-AZAXANTHINE non-polymer HETAIN C4 H3 N5 O2 0 1999-07-08 2011-06-04 N REL 153.099 AZA N N RCSB N1 N 0 1 Y N N 30.952 27.744 36.448 0.754 -0.000 -1.626 N1 AZA 1 C2 C 0 1 Y N N 32.215 27.427 36.008 -0.583 -0.001 -1.747 C2 AZA 2 O2 O 0 1 N N N 32.603 27.774 34.915 -1.071 -0.001 -2.861 O2 AZA 3 N3 N 0 1 Y N N 33.038 26.705 36.814 -1.401 0.003 -0.680 N3 AZA 4 C4 C 0 1 Y N N 32.620 26.324 38.012 -0.893 -0.000 0.598 C4 AZA 5 C5 C 0 1 Y N N 31.364 26.629 38.477 0.485 -0.000 0.781 C5 AZA 6 C6 C 0 1 Y N N 30.419 27.396 37.668 1.342 0.000 -0.411 C6 AZA 7 O6 O 0 1 N N N 29.271 27.733 37.962 2.554 0.000 -0.306 O6 AZA 8 N7 N 0 1 Y N N 31.241 26.113 39.697 0.730 -0.000 2.101 N7 AZA 9 N8 N 0 1 Y N N 32.433 25.519 39.911 -0.383 -0.000 2.748 N8 AZA 10 N9 N 0 1 Y N N 33.305 25.625 38.903 -1.444 -0.000 1.829 N9 AZA 11 HN1 H 0 1 N N N 30.360 28.283 35.815 1.306 -0.000 -2.424 HN1 AZA 12 HN3 H 0 1 N N N 33.978 26.446 36.516 -2.362 0.008 -0.814 HN3 AZA 13 HN9 H 0 1 N N N 34.255 25.262 38.831 -2.391 -0.001 2.039 HN9 AZA 14 sing Y N 1 sing Y N 2 sing N N 3 doub N N 4 sing Y N 5 sing Y N 6 sing N N 7 doub Y N 8 sing Y N 9 sing Y N 10 sing Y N 11 doub N N 12 doub Y N 13 sing Y N 14 sing N N 15 O=C2Nc1nnnc1C(=O)N2 O=C1NC(=O)c2nn[nH]c2N1 O=C1NC(=O)c2nn[nH]c2N1 c12c([nH]nn1)NC(=O)NC2=O c12c([nH]nn1)NC(=O)NC2=O InChI=1S/C4H3N5O2/c10-3-1-2(8-9-7-1)5-4(11)6-3/h(H3,5,6,7,8,9,10,11) KVGVQTOQSNJTJI-UHFFFAOYSA-N 3H-[1,2,3]triazolo[4,5-d]pyrimidine-5,7(4H,6H)-dione 3,4-dihydro-[1,2,3]triazolo[4,5-e]pyrimidine-5,7-dione RCSB RCSB