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240788

Sigma-Aldrich

Isobutyraldehyde

≥99%

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Synonym(s):
2-Methylpropanal, 2-Methylpropionaldehyde
Linear Formula:
(CH3)2CHCHO
CAS Number:
78-84-2
Molecular Weight:
72.11
Beilstein:
605330
EC Number:
201-149-6
MDL number:
MFCD00006980
UNSPSC Code:
12352100
PubChem Substance ID:
24854436
NACRES:
NA.22

vapor density

2.5 (vs air)

Quality Level

200

vapor pressure

66 mmHg ( 4.4 °C)

Assay

≥99%

form

liquid

autoignition temp.

384 °F

expl. lim.

10 %, 25 °F
2 %, 32 °F

refractive index

n20/D 1.374 (lit.)

bp

63 °C (lit.)

mp

−65 °C (lit.)

solubility

water: soluble 11g/100mL at 20 °C(lit.)
acetone: miscible(lit.)
benzene: miscible(lit.)
carbon disulfide: miscible(lit.)
chloroform: miscible(lit.)
diethyl ether: miscible(lit.)
ethanol: miscible(lit.)
toluene: miscible(lit.)

density

0.79 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

[H]C(=O)C(C)C

InChI

1S/C4H8O/c1-4(2)3-5/h3-4H,1-2H3

InChI key

AMIMRNSIRUDHCM-UHFFFAOYSA-N

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General description

Isobutyraldehyde undergoes asymmetric Michael addition reaction with β-nitroalkenes to give quaternary carbon-containing nitroalkanes.

Application

Isobutyraldehyde (2-methylpropionaldehyde) was used in the microbial synthesis of isobutanol (2-methylpropan-1-ol).

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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