Global InformationHydromelonic acid information
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| Names | |
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| IUPAC name
1,3,4,6,7,9,9b-heptaazaphenalene-2,5,8-tricarbodiimide
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| Other names
hydromelonic acid;[1] tricyanamido‐s‐heptazine;[2] tricyanomelem;[2] [7,11-bis(cyanoimino)-2,4,6,8,10,12,13-heptazatricyclo[7.3.1.05,13]trideca-1,3,5,8-tetraen-3-yl]cyanamide
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| Identifiers | |
CAS Number
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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InChI
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SMILES
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| Properties | |
Chemical formula
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C9H3N13 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Hydromelonic acid,[1] is an elusive chemical compound with formula C
9H
3N
13 or (HNCN)
3(C
6N
7), whose molecule would consist of a heptazine H3(C
6N
7) molecule, with three cyanamido groups H–N=C=N– or N≡C–NH– substituted for the hydrogen atoms.
The compound had not been properly isolated as of 2010, due to its tendency to polymerize.[3][4] However, removal of three protons yields the melonate[5] (formerly hydromelonate[1]) anion (NCN)
3(C
6N
7)3−
, whose salts are stable and have been known since the 19th century. Removal of only two protons yields the divalent hydrogenmelonate anion H(NCN)
3(C
6N
7)2−
.[3][5]
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