siguazodan
{{Chembox
| ImageFile = Siguazodan.svg
| ImageSize = 200px
| ImageAlt =
| IUPACName = 1-Cyano-2-methyl-3-[4-(4-methyl-6-oxo-4,5-dihydro-1H-pyridazin-3-yl)phenyl]guanidine
| OtherNames =
|Section1={{Chembox Identifiers
| CASNo = 115344-47-3
| CASNo_Ref = {{Cascite|changed|CAS}}
| ChEBI = 91791
| ChEMBL = 1256712
| ChemSpiderID = 65101
| EINECS = 634-221-4
| PubChem = 72124
| UNII = 5E4UI00UQJ
| InChI=1S/C14H16N6O/c1-9-7-12(21)19-20-13(9)10-3-5-11(6-4-10)18-14(16-2)17-8-15/h3-6,9H,7H2,1-2H3,(H,19,21)(H2,16,17,18)
| InChIKey= NUHPODZZKHQQET-UHFFFAOYSA-N
| SMILES =CC1CC(=O)NN=C1C2=CC=C(C=C2)NC(=NC)NC#N }}
|Section2={{Chembox Properties
| C=14 | H=16 | N=6 | O=1
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|Section3={{Chembox Hazards
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Siguazodan is a phosphodiesterase inhibitor.{{cite journal|pmid=18788505|year=2008|last1=Sosroseno|first1=W|last2=Sugiatno|first2=E|title=Cyclic-AMP-dependent proliferation of a human osteoblast cell line (HOS cells) induced by hydroxyapatite: Effect of exogenous nitric oxide|volume=79|issue=2|pages=110–6|journal=Acta Biomedica }}