UREA non-polymer HETAIN C H4 N2 O 0 1999-07-08 2011-06-04 N REL 60.055 URE N N 1BV3 RCSB C C 0 1 N N N -4.578 0.646 15.273 0.052 -0.000 0.000 C URE 1 O O 0 1 N N N -4.217 1.786 15.701 1.267 0.000 0.000 O URE 2 N1 N 0 1 N N N -5.124 -0.322 16.018 -0.621 -0.000 1.167 N1 URE 3 N2 N 0 1 N N N -4.377 0.463 13.955 -0.621 0.000 -1.167 N2 URE 4 1HN1 H 0 0 N N N -5.413 -1.237 15.674 -0.136 -0.000 2.007 HN11 URE 5 2HN1 H 0 0 N N N -5.936 0.087 16.478 -1.591 0.003 1.167 HN12 URE 6 1HN2 H 0 0 N N N -3.960 1.201 13.387 -0.136 0.000 -2.007 HN21 URE 7 2HN2 H 0 0 N N N -4.666 -0.452 13.611 -1.591 -0.000 -1.167 HN22 URE 8 doub N N 1 sing N N 2 sing N N 3 sing N N 4 sing N N 5 sing N N 6 sing N N 7 O=C(N)N NC(N)=O NC(N)=O C(=O)(N)N C(=O)(N)N InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4) XSQUKJJJFZCRTK-UHFFFAOYSA-N urea urea RCSB RCSB