Isobutyraldehyde
ALDRICH/240788 - ≥99%
Synonym: 2-Methylpropanal; 2-
CAS Number: 78-84-2
Empirical Formula (Hill Notation): C4H8O
Molecular Weight: 72.11
EC Number: 201-149-6
MDL Number: MFCD00006980
Linear Formula: (CH3)2CHCHO
Product Type: Chemical
| assay | ≥99% |
| autoignition temp. | 384 °F |
| bp | 63 °C (lit.) |
| density | 0.79 g/mL at 25 °C (lit.) |
| expl. lim. | 10 %, 25 °F |
| 2 %, 32 °F | |
| form | liquid |
| functional group | aldehyde |
| InChI | 1S/C4H8O/c1-4(2)3-5/h3-4H |
| InChI key | AMIMRNSIRUDHCM-UHFFFAOYSA |
| mp | −65 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | [H]C(=O)C(C)C |
| solubility | acetone: miscible(lit.) |
| benzene: miscible(lit.) | |
| carbon disulfide: miscible(lit.) | |
| chloroform: miscible(lit.) | |
| diethyl ether: miscible(lit.) | |
| ethanol: miscible(lit.) | |
| toluene: miscible(lit.) | |
| water: soluble 11g/100mL at 20 °C(lit.) | |
| storage temp. | 2-8°C |
| vapor density | 2.5 (vs air) |
| vapor pressure | 66 mmHg ( 4.4 °C) |
| Application: | Isobutyraldehyde (2-methylpropionaldehyde) was used in the microbial synthesis of isobutanol (2-methylpropan-1-ol). |
| General description: | Isobutyraldehyde undergoes asymmetric Michael addition reaction with β-nitroalkenes to give quaternary carbon-containing nitroalkanes. |
| Packaging: | 2, 100 mL in glass bottle |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H319 |
| Precautionary statements | P210 - P305 + P351 + P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36 |
| Safety Statements | 16-26 |
| RIDADR | UN 2045 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | -11.2 °F - closed cup |
| Flash Point(C) | -24 °C - closed cup |
| Purity | ≥99% |
| bp | 63 °C (lit.) |
| mp | −65 °C (lit.) |
| Density | 0.79 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |



