2,4-Dinitrophenylhydrazine

2,4-Dinitrophenylhydrazine
Names
	Preferred IUPAC name (2,4-Dinitrophenyl)hydrazine
	Other names 2,4-DNPH; 2,4-DNP; DNPH; Brady's reagent; Borche's reagent
Identifiers
CAS Number	119-26-6 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:66932 ;
ChEMBL	ChEMBL352799 ;
ChemSpider	3001507 ;
ECHA InfoCard	100.003.918
EC Number	204-309-3;
KEGG	C11283 ;
PubChem CID	3772977;
UNII	1N39KD7QPJ;
CompTox Dashboard (EPA)	DTXSID2059485 ;
	InChI InChI=1S/C6H6N4O4/c7-8-5-2-1-4(9(11)12)3-6(5)10(13)14/h1-3,8H,7H2 Key: HORQAOAYAYGIBM-UHFFFAOYSA-N ; InChI=1/C6H6N4O4/c7-8-5-2-1-4(9(11)12)3-6(5)10(13)14/h1-3,8H,7H2 Key: HORQAOAYAYGIBM-UHFFFAOYAM;
	SMILES c1cc(c(cc1[N+](=O)[O-])[N+](=O)[O-])NN;
Properties
Chemical formula	C6H6N4O4
Molar mass	198.14 g/mol
Appearance	Red or orange powder
Melting point	198 to 202 °C (388 to 396 °F; 471 to 475 K) dec.
Solubility in water	Slight
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Flammable, possibly carcinogenic
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H228, H302, H319
Precautionary statements	P210, P240, P241, P264, P270, P280, P301+P312, P305+P351+P338, P330, P337+P313, P370+P378, P501
Safety data sheet (SDS)	MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2,4-Dinitrophenylhydrazine (2,4-DNPH or DNPH) is the organic compound C₆H₃(NO₂)₂NHNH₂. DNPH is a red to orange solid. It is a substituted hydrazine. The solid is relatively sensitive to shock and friction. For this reason DNPH is usually handled as a wet powder. DNPH is a precursor to the drug Sivifene.