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A4994012

Isobutyraldehyde , 99%(GC) , 78-84-2

Synonym(s):
2-Methylpropanal;2-Methylpropionaldehyde;Isobutanal;Isobutyraldehyde

CAS NO.:78-84-2

Empirical Formula: C4H8O

Molecular Weight: 72.11

MDL number: MFCD00006980

EINECS: 201-149-6

Update time: 2022-07-08

PRODUCT Properties

Melting point: -65 °C (lit.)
Boiling point: 63 °C (lit.)
Density  0.79 g/mL at 25 °C (lit.)
vapor density  2.5 (vs air)
vapor pressure  66 mm Hg ( 4.4 °C)
refractive index  n20/D 1.374(lit.)
FEMA  2220 | ISOBUTYRALDEHYDE
Flash point: −40 °F
storage temp.  Store below +30°C.
solubility  water: soluble11g/100mL at 20°C(lit.)
form  Liquid
color  Clear
Odor Pungent.
explosive limit 1.6-11.0%(V)
Odor Threshold 0.00035ppm
Odor Type aldehydic
Water Solubility  75 g/L (20 ºC)
Sensitive  Air Sensitive
Merck  14,5154
JECFA Number 252
BRN  605330
Stability: Stable. Refrigerate. Highly flammable. Incompatible with strong oxidizing agents, strong bases, strong acids, strong reducing agents.
LogP 0.77 at 25℃

Description and Uses

Isobutyraldehyde has a characteristic odor. Synthesized via oxidation of isobutyl alcohol with potassium dichromate and concentrated sulfuric acid.

Isobutyraldehyde is used as an intermediate in the preparation of isobutanol, methacrolein, hydroxypivaldehyde and neopentyl glycol. It is actively involved in the Cannizaro reaction. It is also used as an intermediate to prepare pharmaceuticals, agrochemicals, vitamins, antioxidants, rubber accelerators, textile auxiliaries, perfumery and flavors.

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H319
Precautionary statements  P210-P233-P240-P241-P242-P305+P351+P338
Hazard Codes  F,Xn,Xi
Risk Statements  11-22-36
Safety Statements  16-36/37-9-33-29-26
RIDADR  UN 2045 3/PG 2
WGK Germany  1
RTECS  NQ4025000
9-13-23
Autoignition Temperature 384 °F
TSCA  Yes
HS Code  2912 19 00
HazardClass  3
PackingGroup  II
Toxicity LD50 orally in rats: 3.7 g/kg (Smyth)

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