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D194255

Sigma-Aldrich

1,3-Dinitrobenzene

97% anhydrous basis

Synonym(s):

1,3-Dinitrobenzene, DNB, Meta-dinitrobenzene, m-Dinitrobenzene

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About This Item

Linear Formula:
C6H4(NO2)2
CAS Number:
99-65-0
Molecular Weight:
168.11
Beilstein:
1105654
EC Number:
202-776-8
MDL number:
MFCD00007222
UNSPSC Code:
12352100
PubChem Substance ID:
24893577
NACRES:
NA.22

Quality Level

100

Assay

97% anhydrous basis

form

solid

impurities

≤10.0% H2O

bp

297 °C (lit.)

mp

84-86 °C (lit.)

density

1.368 g/mL at 25 °C (lit.)

SMILES string

[O-][N+](=O)c1cccc(c1)[N+]([O-])=O

InChI

1S/C6H4N2O4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H

InChI key

WDCYWAQPCXBPJA-UHFFFAOYSA-N

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General description

1,3-Dinitrobenzene can undergo reductive degradation by alkaline ascorbic acid to produce 1,3-phenylenediamine.

Application

1,3-Dinitrobenzene can be used as a reactant to synthesize:      
  • 2′,6′- dinitrobiphenyl-4-ol and 1-nitrodibenzofuran via copper-catalyzed regioselective cross-coupling reaction with 4-iodophenol and 2-iodophenol respectively.      
  • 1H-indazole derivatives by reacting with various N-tosylhydrazones in the presence of a base catalyst.      
  • 3-(1H-Tetrazol-1-yl)benzenamine by reacting with triethyl orthoformate and NaN3 in the presence of a three-functional redox catalytic system.

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

302.0 °F - closed cup

Flash Point(C)

150 °C - closed cup

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.

FSL

Group 5: Self-reactive substances
Nitro compounds
Hazardous rank II
2nd self-reactive materials

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

D194255-BULK:
D194255-25G:4548173948515
D194255-VAR:
D194255-100G:4548173948508
D194255-5G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV5256
MKCR2743
MKCN0773
MKCM4488
MKCL8178

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1, 3-Dinitrobenzene reductive degradation by alkaline ascorbic acid--Reaction mechanisms, degradation pathways and reagent optimization
Ciou C,et al.
Chemosphere, 166, 482-488 (2017)
Zhenxing Liu et al.
Chemical communications (Cambridge, England), 50(39), 5061-5063 (2014-04-10)
A new method for the synthesis of 1H-indazoles from readily available N-tosylhydrazones and nitroaromatic compounds has been developed. This transformation occurs under transition-metal-free conditions and shows a wide substrate scope. The method has been successfully applied to the formal synthesis
Oxidation/MCR domino protocol for direct transformation of methyl benzene, alcohol, and nitro compounds to the corresponding tetrazole using a three-functional redox catalytic system bearing TEMPO/Co (III)-porphyrin/Ni (II) complex
Mahmoudi B, et al.
Molecular Catalysis, 499, 111311-111311 (2021)
Copper-Mediated Vicarious Substitution of 1, 3-Dinitrobenzene with lodophenols or lodomethyl Phenyl Sulfoxide/Sulfone
Haglund O, et al.
Synthesis, 1990(10), 942-944 (1990)
Chenyu Lin et al.
BMC chemistry, 14(1), 66-66 (2020-12-10)
For analysis of weak π-π complexes proton-nuclear magnetic resonance (proton-NMR) simultaneously provides information of stacking configurations and association constants [Formula: see text] However, an apparent issue for this approach is inconsistent/impossible constant estimation which often leads to unreasonable interpretation for
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