5-Amino-1,2-dihydro-3H-1,2,4-triazol-3-one

5-Amino-1,2-dihydro-3H-1,2,4-triazol-3-one (C2H4N4O, CAS 1003-35-6) — a free educational 3D molecular model for teachers and students, by MolGod.org. Symbols are engraved into every atom, so students read atoms by symbol, not by colour. In 5-Amino-1,2-dihydro-3H-1,2,4-triazol-3-one the ring system sets the overall shape: one 5-membered ring. Altogether 11 bonds hold the model together (9 single and 2 double). Hand the model round and let students tally the engraved atoms: 2 C + 4 H + 4 N + 1 O, 11 in total. It makes heteroaromatic rings (nitrogen inside an aromatic ring), as well as amines and basicity easier to see. Full record and more free models: https://molgod.org/molecule/1003-35-6/?utm_source=sketchfab&utm_medium=referral&utm_campaign=edu-3d-models Licence & provenance: https://molgod.org/licenses/stl/1003-35-6/ Required attribution (CC BY-SA 4.0): "5-Amino-1,2-dihydro-3H-1,2,4-triazol-3-one 3D model by MolGod.org — https://molgod.org/molecule/1003-35-6/ — CC BY-SA 4.0"