HMDB0259019
     RDKit          3D
Thionitrous acid
  4  3  0  0  0  0  0  0  0  0999 V2000
   -1.5934   -0.3927   -0.2129 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8302    0.3186    0.3690 N   0  0  0  0  0  0  0  0  0  0  0  0
    0.7876    0.5684   -0.2620 S   0  0  0  0  0  0  0  0  0  0  0  0
    1.6360   -0.4944    0.1060 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  2  0
  2  3  1  0
  3  4  1  0
M  END