CAS mumber
78-84-2

Molecular formula
C4H8O

SMILES
CC(C)C=O

Retention indicies (RI)

• DB5: 556.0
• Carbowax: 800.0

XLogP3-AA
0.8 Well soluble in MMB, TEC, DEP

Molecular weight
72.11 g/mol

Melting points

• -85 °F (NTP, 1992)
• -65.9 °C
• -65.9 °C
• -65 °C

Boiling points

• 147 °F at 760 mmHg (NTP, 1992)
• 64 °C @ 760 mm Hg
• Wt/gal: 6.55 lb; forms azeotrope with water containing 94% isobutyraldehyde; azeotrope BP: 59 °C @ 760 mm Hg; oxidizes slowly on exposure to air, forming isobutyric acid.
• 63.00 °C. @ 760.00 mm Hg
• 63-64 °C

Flash points

• -40 °F (NTP, 1992)
• -25 °C
• LESS THAN 20 °F (OPEN CUP)
• -10.6 °C (Open cup)
• -40 °F (closed cup)
• -24 °C c.c.

Solubilities

• less than 1 mg/mL at 66 °F (NTP, 1992)
• Miscible in ethanol, ether, carbon disulfide, acetone, benzene, toluene, and chloroform.
• Slightly soluble in carbon tetrachloride
• In water, 89,000 mg/l @ 25 °C.
• 89 mg/mL at 25 °C
• Solubility in water, g/100ml at 20 °C: 6.7 (moderate)
• miscible with alcohol, ether; soluble in water 1 ml in 125 ml

• ISOBUTYRALDEHYDE
• 2-Methylpropanal
• 78-84-2
• Isobutanal
• Isobutylaldehyde
• 2-Methylpropionaldehyde
• Propanal, 2-methyl-
• Isobutyric aldehyde
• Valine aldehyde
• 2-Methyl-1-propanal
• Isopropylaldehyde
• Isopropylformaldehyde
• Isobutaldehyde
• Isobutyraldehyd
• Methylpropanal
• Isobutyral
• Methyl propanal
• Isobutyryl aldehyde
• Isopropyl aldehyde
• alpha-Methylpropionaldehyde
• Isopropyl formaldehyde
• isobutyl aldehyde
• Propionaldehyde, 2-methyl-
• ISO-BUTYRALDEHYDE
• FEMA No. 2220
• Isobutyraldehyde (natural)
• NCI-C60968
• NSC 6739
• CCRIS 1101
• HSDB 614
• EINECS 201-149-6
• .alpha.-Methylpropionaldehyde
• UNII-C42E28168L
• CHEBI:48943
• iso-C3H7CHO
• AI3-15311
• 2-methyl-propionaldehyde
• NSC-6739
• 2-METHYL-PROPANAL
• C42E28168L
• ISOPROPYLCARBOXALDEHYDE
• DTXSID9021635
• EC 201-149-6
• Isobutyraldehyde, 98%
• ISOBUTYRALDEHYDE (USP-RS)
• ISOBUTYRALDEHYDE [USP-RS]
• Isobutyraldehyd [Czech]
• isobutyl aldehy de
• Butyric iso aldehyde
• MFCD00006980
• UN2045
• isobutyraldehye
• i-butyraldehyde
• iso-butanal
• i-butanal
• 2-methypropanal
• so-Butyl aldehyde
• iso-butyl aldehyde
• dimethylacetaldehyde
• 2-FORMYLPROPANE
• 2-methyl-propan-1-one
• Isobutyraldehyde, >=99%
• alpha -methylpropionaldehyde
• Isobutyraldehyde, redistilled
• ISOBUTYRALDEHYDE [MI]
• Isobutyraldehyde, dry, 98%
• 2-methylpropanal (isobutanal)
• ISOBUTYRALDEHYDE [FCC]
• WLN: VHY1&1
• ISOBUTYRALDEHYDE [FHFI]
• ISOBUTYRALDEHYDE [HSDB]
• DTXCID201635
• CHEMBL1404017
• Isobutyraldehyde, >=98%, FG
• FEMA 2220
• Isobutyraldehyde 2-Methylpropanal
• Isobutyraldehyde, >=98%, FCC
• NSC6739
• AAA07884
• Isobutyraldehyde or isobutyl aldehyde
• Isobutyraldehyde, analytical standard
• Tox21_200024
• BBL034648
• STL264210
• Isobutyraldehyde, natural, 96%, FG
• AKOS000119887
• UN 2045
• CAS-78-84-2
• NCGC00091788-01
• NCGC00091788-02
• NCGC00257578-01
• BP-20619
• Isobutyraldehyde, redistilled, >=99.5%
• I0101
• NS00004602
• EN300-19563
• C22919
• A839508
• Q418164
• InChI=1/C4H8O/c1-4(2)3-5/h3-4H,1-2H
• F2190-0633
• Isobutyraldehyde or isobutyl aldehyde [UN2045] [Flammable liquid]
• 201-149-6