Propionaldehyde or propanal is the organic compound with the formula CH3CH2CHO. It is a saturated 3-carbon aldehyde and is a structural isomer of acetone. It is a colorless liquid with a slightly irritating, fruity odor.
It is principally used as a precursor to trimethylolethane (CH3C(CH2OH)3) through a condensation reaction with formaldehyde; this triol is an important intermediate in the production of alkyd resins. Other applications include reduction to propanol and oxidation to propionic acid.[1]
Condensation of propionaldehyde with tert-butylamine gives CH3CH2CH=N-t-Bu, a three-carbon building block used in organic synthesis. Deprotonation of this imine with LDA produces CH3CHLiCH=N-t-Bu, which in turn condenses with aldehydes.

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Storage Instructions : Keep in tightly closed containers; store in a cool, dry, wellventilated area away from moisture and heat
Appearance : Clear to pale yellow liquid
Chemical Name : Toluene Diisocyanate
Usage : Industrial use in plastics and rubber industries
Density : 1.22 Gram per cubic centimeter(g/cm3)
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Storage Instructions : Keep in a cool dry place away from direct sunlight
Appearance : Solid or flakes
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Usage : Used in resin production disinfectants and particle board manufacturing
Density : 1.42 Gram per cubic centimeter(g/cm3)
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Storage Instructions : Store in cool dry and wellventilated area away from heat and direct sunlight.
Appearance : Colorless to pale yellow liquid
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Usage : Intermediate chemical in organic synthesis epoxy curing agent and corrosion inhibitor production
Density : 0.955 Gram per cubic centimeter(g/cm3)
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Storage Instructions : Room Temperature
Appearance : Transparent
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Usage : Industrial
Density : 1.13 Gram per cubic centimeter(g/cm3)
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