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N10802

Sigma-Aldrich

2-Nitrobenzaldehyde

98%

Synonym(s):

o-NBA, ortho-nitrobenzaldehyde

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About This Item

Linear Formula:
O2NC6H4CHO
CAS Number:
Molecular Weight:
151.12
Beilstein:
742624
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

crystals

bp

153 °C/23 mmHg (lit.)

mp

42-44 °C (lit.)

SMILES string

[O-][N+](=O)c1ccccc1C=O

InChI

1S/C7H5NO3/c9-5-6-3-1-2-4-7(6)8(10)11/h1-5H

InChI key

CMWKITSNTDAEDT-UHFFFAOYSA-N

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General description

The 2-Nitrobenzyl group of 2-nitrobenzaldehyde is photolabile that can be cleaved when exposed to UV-light.

Application

2-Nitrobenzaldehyde can react with chitosan to form 2-nitrobenzyl-chitosan, which is soluble in trifluoroacetic acid and can also be electrospun into nanofiber matrices. On photolysis, the nitrobenzyl group is cleaved to form neat chitosan nanofiber matrices. The same principle has been applied for the preparation of gelatin nanofiber matrices. The condensation of o-NBA with 2-aminobenzothiazole forms o-nitrobenzylidene 2-aminobenzothiazole, a Schiff′s base that can react with metal ions to form complexes.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

N10802-BULK:
N10802-25G:
N10802-2G:
N10802-VAR:
N10802-100G:


Certificates of Analysis (COA)

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A smart methodology to fabricate electrospun chitosan nanofiber matrices for regenerative engineering applications.
Nada A A, et al.
Polymers For Advanced Technologies, 25(5), 507-515 (2014)
Gelatin nanofiber matrices derived from schiff base derivative for tissue engineering applications.
Jaiswal D, et al.
Journal of Biomedical Nanotechnology, 11(11), 2067-2080 (2015)
S Laimgruber et al.
Physical chemistry chemical physics : PCCP, 10(26), 3872-3882 (2008-08-09)
The first intermediate of the photochemical transformation of ortho-nitrobenzaldehyde to ortho-nitrosobenzoic acid in acetonitrile solvent has been characterized by femtosecond spectroscopy and time-dependent density functional theory (TDDFT) calculations. Femtosecond stimulated Raman spectroscopy (FSRS) indicates that this intermediate adopts a ketene
Fang-Bo Yu et al.
Journal of hazardous materials, 176(1-3), 20-26 (2009-07-07)
This study demonstrates the feasibility of using Pseudomonas putida ONBA-17 to bioaugment a sequencing batch reactor (SBR) treating o-nitrobenzaldehyde (ONBA) synthetic wastewater. To monitor its survival, the strain was chromosomally marked with gfp gene. After a transient adaptation, almost 100%
Studies on some Schiff base complexes of CoII, NiII and CuII derived from salicylaldehyde and o-nitrobenzaldehyde.
Zaki Z M, et al.
Spectroscopy Letters, 31(4), 757-766 (1998)

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