Diisobutylaluminum hydride
ALDRICH/256811 - reagent grade
Synonym: DIBAL; DIBAL-H
CAS Number: 1191-15-7
Empirical Formula (Hill Notation): C8H19Al
Molecular Weight: 142.22
EC Number: 214-729-9
MDL Number: MFCD00008928
Linear Formula: [(CH3)2CHCH2]2AlH
Product Type: Chemical
| bp | 116-118 °C/1 mmHg (lit.) |
| density | 0.798 g/mL at 25 °C (lit.) |
| grade | reagent grade |
| InChI | 1S/2C4H9.Al.H/c2*1-4(2)3; |
| InChI key | AZWXAPCAJCYGIA-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| reaction suitability | reagent type: reductant |
| SMILES string | [H][Al](CC(C)C)CC(C)C |
| Application: | Diisobutylaluminum hydride can be used in the following protocols: • As a promotor of Tishchenko reaction of aldehydes. • Conversion of benzylidene acetals of 1,2-and 1,3-glycols to the corresponding monobenzyl ethers of the glycols. • To generate a novel chiral reducing agent based on (S)-proline for the asymmetric reduction of prochiral ketones. |
| General description: | Diisobutylaluminum hydride is commonly used as a reducing agent in organic synthesis. |
| Legal Information: | Aldrich is a registered trademark of Sigma-Aldrich Co. LLC |
| Legal Information: | Sure/Pac is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1 kg in Sure/Pac™ |
| Packaging: | 100 g in Sure/Pac™ |
| Packaging: | Supplied in a Sure/Pac™ cylinder and has a 1/4-turn bronze ball valve with a female 1/4" NPT outlet thread (Z122661 ) installed. Before using the cylinder, ensure that the valve is closed, then remove carbon steel plug that seals the outlet valve. Compatible with the following: • Aldrich® Sure/Pac™ station for liquefied gases Z566446 ![]() • PTFE Sealing tape Z104388 or Z221880 ![]() • Straight septum-inlet adapter Z118141 with septa Z565687 or Z565695.For instructions please refer to technical bulletin AL-136: The Aldrich Sure/Pac™ Cylinder System ![]() |
| Symbol | ![]() GHS02,GHS05 |
| Signal word | Danger |
| Hazard statements | H250 - H260 - H314 |
| Precautionary statements | P210 - P222 - P231 + P232 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 14/15-17-35 |
| Safety Statements | 26-36/37/39-43-45 |
| RIDADR | UN 3394 4.3(4.2) / PGI |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH014 |
| bp | 116-118 °C/1 mmHg (lit.) |
| Density | 0.798 g/mL at 25 °C (lit.) |
| UNSPSC | 12352001 |



