Isobutyraldehyde

Isobutyraldehyde
Names
	Preferred IUPAC name 2-Methylpropanal
	Other names 2-Methylpropionaldehyde
Identifiers
CAS Number	78-84-2 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	605330
ChEBI	CHEBI:48943 ;
ChemSpider	6313 ;
ECHA InfoCard	100.001.045
EC Number	201-149-6;
Gmelin Reference	1658
PubChem CID	6561;
RTECS number	NQ4025000;
UNII	C42E28168L ;
UN number	2045
CompTox Dashboard (EPA)	DTXSID9021635 ;
	InChI InChI=1S/C4H8O/c1-4(2)3-5/h3-4H,1-2H3 Key: AMIMRNSIRUDHCM-UHFFFAOYSA-N ; InChI=1/C4H8O/c1-4(2)3-5/h3-4H,1-2H3 Key: AMIMRNSIRUDHCM-UHFFFAOYAE;
	SMILES CC(C)C=O;
Properties
Chemical formula	C4H8O
Molar mass	72.11 g/mol
Appearance	colourless liquid
Odor	Pungent; straw-like
Density	0.79 g/cm3
Melting point	−65 °C (−85 °F; 208 K)
Boiling point	63 °C (145 °F; 336 K)
Solubility in water	moderate
Solubility in other solvents	miscible in organic solvents
Magnetic susceptibility (χ)	−46.38·10−6 cm3/mol
Refractive index (nD)	1.374
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	flammable
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H319
Precautionary statements	P210, P233, P240, P241, P242, P243, P264, P280, P303+P361+P353, P305+P351+P338, P337+P313, P370+P378, P403+P235, P501
Flash point	−19 °C; −2 °F; 254 K
Related compounds
Related alkyl aldehydes	Lilial; Hexyl cinnamaldehyde; 2-Methylundecanal
Related compounds	Butyraldehyde; Propionaldehyde
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Isobutyraldehyde is the chemical compound with the formula (CH₃)₂CHCHO. It is an aldehyde, isomeric with n-butyraldehyde (butanal). Isobutyraldehyde is made, often as a side-product, by the hydroformylation of propene. Its odour is described as that of wet cereal or straw. It undergoes the Cannizzaro reaction even though it has alpha hydrogen atom. It is a colorless volatile liquid.