2,4-DINITROBENZOIC ACID Chemical Properties

Melting point:

176-180 °C (lit.)

Boiling point:

351.93°C (rough estimate)

Density 

1.688

refractive index 

1.5300 (estimate)

storage temp. 

Store below +30°C.

solubility 

dioxane: 50 mg/mL, clear

pka

1.43(at 25℃)

Water Solubility 

18.2g/L(25 ºC)

BRN 

658650

CAS DataBase Reference

610-30-0(CAS DataBase Reference)

EPA Substance Registry System

Benzoic acid, 2,4-dinitro- (610-30-0)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

RTECS 

DG9140500

Hazard Note 

Irritant

TSCA 

Yes

HS Code 

29163990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2,4-DINITROBENZOIC ACID Usage And Synthesis

Chemical Properties

pale yellow crystalline powder

Uses

2,4-Dinitrobenzoic acid was used in the spectrophotometric determination of diazepam in pure samples and in its pharmaceutical preparations. It was employed as chromophore probe for analysis of perfluorinated carboxylic acids in water by capillary zone electrophoresis. It can be used to produce 2,4-dinitro-benzoyl chloride.

Uses

2,4-Dinitrobenzoic acid can be used as a reactant:

• In decarboxylative C-N cross-coupling reactions.
• To synthesize Zwitterionic azaspirocyclic hydantoins by reacting with various carbodiimides via in situ intramolecular dearomatization reaction.
• To prepare 1-(2,4-dinitrophenyl)ethanone by condensation with dimethyl malonate and subsequent decarboxylation reaction.

It can also be used in the spectrophotometric determination of diazepam in pure samples and in its pharmaceutical preparations. In capillary zone electrophoresis, it can be employed as chromophore probe for the analysis of perfluorinated carboxylic acids in water.

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