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2-Nitrobenzaldehyde

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2-Nitrobenzaldehyde Basic information

Product Name:
2-Nitrobenzaldehyde
Synonyms:
  • 2-nitro-benzaldehyd
  • Benzaldehyde, o-nitro-
  • Benzaldehyde,2-nitro-
  • o-nitro-benzaldehyd
  • 1-ForMyl-2-nitrobenzene
  • 2-ForMyl-3-nitrobenzene
  • 2-NBA
  • 2-Nitrobenzenecarboxaldehyde
CAS:
552-89-6
MF:
C7H5NO3
MW:
151.12
EINECS:
209-025-3
Product Categories:
  • Pharmaceutical intermediates
  • Chemical Synthesis
  • Organic Building Blocks
  • Building Blocks
  • Carbonyl Compounds
  • Nifedipine
  • Benzaldehyde
  • Aldehydes
  • C7
  • Carbonyl Compounds
Mol File:
552-89-6.mol
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2-Nitrobenzaldehyde Chemical Properties

Melting point:
42-44 °C(lit.)
Boiling point:
153 °C23 mm Hg(lit.)
Density 
1,284 g/cm3
vapor density 
5.2 (vs air)
refractive index 
1.5800 (estimate)
Flash point:
>230 °F
storage temp. 
Store at RT.
form 
Crystalline Powder, Needles and/or Chunks
color 
Yellow
Water Solubility 
Insoluble in water.
Sensitive 
Air Sensitive
Merck 
14,6586
BRN 
742624
CAS DataBase Reference
552-89-6(CAS DataBase Reference)
NIST Chemistry Reference
Benzaldehyde, 2-nitro-(552-89-6)
EPA Substance Registry System
Benzaldehyde, 2-nitro- (552-89-6)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
22-36/37/38-68
Safety Statements 
26-24/25-36/37/39-36
WGK Germany 
2
RTECS 
CU7300000
8
Autoignition Temperature
200 °C (Lit.)
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29130000

MSDS

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2-Nitrobenzaldehyde Usage And Synthesis

Chemical Properties

YELLOW CRYSTALLINE POWDER OR NEEDLES

Uses

2-Nitrobenzaldehyde is a benzaldhyde with a nitro group substituted in the ortho position. 2-Nitrobenzaldehyde is used in the preparation of dyes and colorants such as Indigo carmine. 2-Nitrobenzaldeh yde gas been shown to be a useful photoremovable protecting group as well as in the preparation of more effective ones such as o-Nitrophenylethylene glycol.

Definition

ChEBI: Benzaldehyde substituted at the ortho-position with a nitro group.

Synthesis Reference(s)

Synthetic Communications, 19, p. 3385, 1989 DOI: 10.1080/00397918908052745

Purification Methods

Crystallise the aldehyde from toluene (2-2.5mL/g) by addition of 7mL pet ether (b 40-60o) for 1mL of solution. It can also be distilled under reduced pressures. [Beilstein 7 IV 584.]

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