119-26-6

Name	DNP
CAS	119-26-6
EINECS(EC#)	204-309-3
Molecular Formula	C6H6N4O4
MDL Number	MFCD00007578
Molecular Weight	198.14
MOL File	119-26-6.mol

Chemical Properties

Appearance	white to light yellow crystal powde
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
Fp	14 °C
storage temp.	2-8°C
solubility	50% sulfuric acid: 10 mg/mL, clear, colorless
form	crystals
pka	12.1(at 25℃)
color	Red
PH Range	Yellow (11.0) to brown (12.5)
Stability:	Stable when wet, but explosive when dry. May be shock sensitive when dry. Highly flammable. Incompatible with strong oxidizing agents.
Water Solubility	slightly soluble
Merck	14,3283
BRN	615586
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	119-26-6(EPA Substance)

Safety Data

Hazard Codes	F,Xn
Risk Statements	R1:Explosive when dry. R11:Highly Flammable. R22:Harmful if swallowed. R40:Limited evidence of a carcinogenic effect. less more
Safety Statements	S35:This material and its container must be disposed of in a safe way . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S36/37:Wear suitable protective clothing and gloves . S16:Keep away from sources of ignition-No smoking . less more
RIDADR	UN 3380 4.1/PG 1
WGK Germany	3
RTECS	MV3325000
F	8
HazardClass	4.1
PackingGroup	II
HS Code	29280000

Raw materials And Preparation Products

Hazard Information

Chemical Properties

white to light yellow crystal powde

Definition

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

General Description

2,4-Dinitrophenylhydrazine (DNPH), a hydrazine derivative, is a potential mutagenic agent. Its molecular and crystal structure has been analyzed. The intra- and intermolecular hydrogen bonds in DNPH have been investigated by vibrational spectroscopic analysis. The mechanism of isothermal degradation of DNPH has been studied by differential scanning calorimetry (DSC).

Hazard

2,4-Dinitrophenylhydrazine [119-26-6] is a flammable solid, which must be kept moist and is harmful if swallowed, inhaled, or absorbed through the skin. Concentrated sulfuric acid [7664-93-9] is poisonous and corrosive. Its mist can cause severe burns to all body tissue. It may be fatal if swallowed or by skin contact. It is harmful if inhaled and may cause cancer. Ethanol [64-17-5] is flammable and should be kept from ignition sources. Eye and face protection, protective clothing, and gloves must be worn.

Purification Methods

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

References

1. SOME LIMITATIONS OF 2,4-DINITROPHENYLHYDRAZINE AS A REAGENT FOR CARBONYL GROUPS. DOI:10.1021/JO01226A003
2. Linstromberg, W. W.; Baumgarten, H. E. Organic Experiments, 6th ed.; Houghton Mifflin: Boston, 2002; p 175. Shriner, R. L.; Hermann, C. K. F.; Morrill, T. C.; Curtin, D. Y.; Fuson, R. C. The Systematic Identification of Organic Compounds, 8th ed.; Wiley; Hoboken, NJ, 2004; pp 278–279.
3. An Improved Preparation of 2,4-Dinitrophenylhydrazine Reagent. DOI:10.1021/ED082P1310.2

119-26-6

Chemical Properties

Safety Data

Raw materials And Preparation Products

Raw materials

Hazard Information

Chemical Properties

Definition

General Description

Hazard

Purification Methods

References

Material Safety Data Sheet(MSDS)

Spectrum Detail

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