1,5-Diazabicyclo[4.3.0]non-5-ene

• CAT Number: R044528
• CAS Number: 3001-72-7
• Molecular Formula: C7H12N2
• Molecular Weight: 124.19
• Purity: ≥95%
• Synonyms: 2,3,4,6,7,8-Hexahydropyrrolo[1,2-a]pyrimidine; ?1,5-Diazabicyclo[4.3.0]nonene-5; 2,3,4,6,7,8-Hexahydropyrrolo[1,2-a]pyrimidine; D 1313; DBN; DBN (heterocycle); NBU; NSC 11810
• Storage: -20°C
• IUPAC Name: 2,3,4,6,7,8-hexahydropyrrolo[1,2-a]pyrimidine
• InChI: InChI=1S/C7H12N2/c1-3-7-8-4-2-6-9(7)5-1/h1-6H2
• InChIKey: SGUVLZREKBPKCE-UHFFFAOYSA-N
• SMILES: C1CC2=NCCCN2C1

1,5-Diazabicyclo[4.3.0]non-5-ene (Cat No.: R044528), commonly abbreviated as DBN, is a strong, non-nucleophilic organic base featuring a bicyclic amidine structure. It is widely used in organic synthesis for deprotonation, elimination, and condensation reactions due to its high basicity and steric hindrance. DBN is especially useful in base-catalyzed transformations where minimal nucleophilic interference is required. Its rigid structure and solubility in organic solvents make it an effective catalyst or reagent in both laboratory and industrial settings. For research and chemical synthesis use only.