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Isobutyraldehyde

Isobutyraldehyde

IUPAC name	2-methylpropanal
Other names	Isobutyraldehyde
Identifiers
CAS number	78-84-2
RTECS number	NQ4025000
Properties
Molecular formula	C₄H₈O
Molar mass	72.11 g/mol
Appearance	colourless liquid
Density	0.79 g/cm³
Melting point	-65 °C
Boiling point	63 °C
Solubility in water	moderate
Solubility in other solvents	miscible in organic solvents
Refractive index (n_D)	1.374
Hazards
Main hazards	flammable
R-phrases	11
S-phrases	16
Flash point	-2 °F
Related Compounds
Related compounds	Butyraldehyde Propionaldehyde
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Isobutyraldehyde is the chemical compound with the formula (CH₃)₂CHCHO. It is an aldehyde, isomeric with n-butyraldehyde (butanal). Isobutyraldehyde is manufactured, often as a side-product, by the hydroformylation of propene. It's odour is described as that of wet cereal or straw.