1,5-Diazabicyclo[4.3.0]non-5-ene
ALDRICH/136581 - 98%
Synonym: DBN
CAS Number: 3001-72-7
Empirical Formula (Hill Notation): C7H12N2
Molecular Weight: 124.18
EC Number: 221-087-3
MDL Number: MFCD00005554
Linear Formula: C7H12N2
Product Type: Chemical
| assay | 98% |
| bp | 95-98 °C/7.5 mmHg (lit.) |
| density | 1.005 g/mL at 25 °C (lit.) |
| form | liquid |
| InChI | 1S/C7H12N2/c1-3-7-8-4-2-6 |
| InChI key | SGUVLZREKBPKCE-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | C1CN=C2CCCN2C1 |
| Application: | 1,5-Diazabicyclo[4.3.0]no • A reagent for the synthesis of β-carbolines from tetrahydro-β-carbolines via dehydrogenative/decarboxy • A nucleophilic organocatalyst in the regioselective C-acylation of pyrroles and indoles by Friedel−Crafts acylation reaction. • A superbase in the formulation of a ternary liquid-liquid phase changing system, along with hexadecane and hexanol, to capture hydrogen sulfide gas. • A base for the preparation of 1H-quinazoline-2,4-diones from 2-aminobenzonitriles using supercritical carbon dioxide as a reactant and a solvent. • A catalyst for the synthesis of benzothiazolones by the reaction between 2-aminothiophenols and CO2 by cyclocarbonylation reaction via C-S bond formation. |
| General description: | DBN is a strong base widely used as a catalyst in organic synthesis to facilitate Michael additions and aldol condensations. |
| Packaging: | 5, 25, 100 g in glass bottle |
| Symbol | GHS05 |
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3267 8 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 201.2 °F - closed cup |
| Flash Point(C) | 94 °C - closed cup |
| Purity | 98% |
| bp | 95-98 °C/7.5 mmHg (lit.) |
| Density | 1.005 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352005 |


