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DNP

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DNP Basic information

Product Name:
DNP
CAS:
119-26-6
MF:
C6H6N4O4
MW:
198.14
EINECS:
204-309-3
Mol File:
119-26-6.mol
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DNP Chemical Properties

Melting point:
197-200 °C(lit.)
Boiling point:
335.43°C (rough estimate)
Density 
0.843 g/mL at 20 °C
refractive index 
n20/D 1.374
Flash point:
14 °C
storage temp. 
2-8°C
solubility 
50% sulfuric acid: 10 mg/mL, clear, colorless
pka
12.1(at 25℃)
form 
crystals
color 
Red
PH Range
Yellow (11.0) to brown (12.5)
Water Solubility 
slightly soluble
Merck 
14,3283
BRN 
615586
Stability:
Stable when wet, but explosive when dry. May be shock sensitive when dry. Highly flammable. Incompatible with strong oxidizing agents.
Major Application
Fuel cells, detecting microorganisms, antibacterial agent, treatment of acuteand chronic hepatitis, gynecopathy, cardiovascular diseases, cerebrovascular diseases
InChIKey
HORQAOAYAYGIBM-UHFFFAOYSA-N
CAS DataBase Reference
119-26-6(CAS DataBase Reference)
NIST Chemistry Reference
Hydrazine, (2,4-dinitrophenyl)-(119-26-6)
EPA Substance Registry System
2,4-Dinitrophenylhydrazine (119-26-6)
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Safety Information

Hazard Codes 
F,Xn
Risk Statements 
1-11-22-40-2001/11/22
Safety Statements 
35-48A-45-36/37-16
RIDADR 
UN 3380 4.1/PG 1
WGK Germany 
3
RTECS 
MV3325000
8
HazardClass 
4.1
PackingGroup 
II
HS Code 
29280000

MSDS

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DNP Usage And Synthesis

Description

2,4-Dinitrophenylhydrazine (abbreviated 2,4-DNP for short) is the chemical compound C6H3 (NO2) 2NHNH2, and it is often used to qualitatively test for carbonyl groups associated with aldehydes and ketones. The hydrazone derivatives can also be used as evidence toward the identity of the original compound. It is relatively sensitive to shock and friction; it is a shock explosive, so care must be taken with its use. To reduce its explosive hazard, it is usually supplied wet.
2,4-Dinitrophenylhydrazine is a compound with a benzene ring, two Nitro groups, and a hydrazine (two nitrogen atoms bonded directly to each other) functional group. It is used as a Brady's reagent to test the existing of a ketone or aldehyde.

Chemical Properties

white to light yellow crystal powde

Uses

2,4-Dinitrophenylhydrazine is known was Brady's reagent, a substituted hydrazine that is often used for qualitative testing of carbonyl groups associated with aldehydes and ketones.

Definition

ChEBI: A C-nitro compound that is phenylhydrazine substituted at the 2- and 4-positions by nitro groups.

Purification Methods

Crystallise DNPH from butan-1-ol, dioxane, EtOH, *C6H6 or EtOAc. The hydrochloride has m 186o (dec). [Beilstein 15 IV 380.]

DNP Preparation Products And Raw materials

Raw materials

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