3-Nitrobenzaldehyde

It contains a nitro group meta-substituted to the aldehyde.

3-Nitrobenzaldehyde is the primary product obtained via the mono-nitration of benzaldehyde with nitric acid.

[3] Product distribution is about 19% for the ortho-, 72% for the meta- and 9% for the para isomers.

It is a mainstay in the synthesis of Dihydropyridine calcium channel blockers.

Via selective reduction of the nitro group, it is a precursor to the diazonium salt.

Skeletal formula of 3-nitrobenzaldehyde
Ball-and-stick model of the 3-nitrobenzaldehyde molecule
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code