N-VALERALDEHYDE-DNPH

N-VALERALDEHYDE-DNPH - Names and Identifiers

Name	valeraldehyde 2,4-dinitrophenylhydra-zone
Synonyms	VALERALDEHYDE-DNPH N-VALERALDEHYDE-DNPH VALERALDEHYDE (DNPH DERIVATIVE) N-PENTANAL 2,4-DINITROPHENYLHYDRAZONE Pentanal, (2,4-dinitrophenyl)hydrazone VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE valeraldehyde 2,4-dinitrophenylhydra-zone (1E)-Pentanal (2,4-dinitrophenyl)hydrazone N-VALERALDEHYDE 2,4-DINITROPHENYLHYDRAZONE
CAS	2057-84-3
EINECS	625-037-5
InChI	InChI=1/C11H14N4O4/c1-2-3-4-7-12-13-10-6-5-9(14(16)17)8-11(10)15(18)19/h5-8,13H,2-4H2,1H3

N-VALERALDEHYDE-DNPH - Physico-chemical Properties

Molecular Formula	C11H14N4O4
Molar Mass	266.25
Density	1.32±0.1 g/cm3(Predicted)
Melting Point	103-105°C(lit.)
Boling Point	412.6±45.0 °C(Predicted)
Flash Point	2℃
Vapor Presure	5.12E-07mmHg at 25°C
Appearance	neat
pKa	12.20±0.10(Predicted)
Storage Condition	0-6°C
Refractive Index	1.592
MDL	MFCD00191595

N-VALERALDEHYDE-DNPH - Risk and Safety

Risk Codes	R36/37/38 - Irritating to eyes, respiratory system and skin. R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R36 - Irritating to the eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S27 - Take off immediately all contaminated clothing. S16 - Keep away from sources of ignition. S36/37 - Wear suitable protective clothing and gloves.
UN IDs	UN 1648 3/PG 2
WGK Germany	3

N-VALERALDEHYDE-DNPH - Introduction

Valeralaldehyde 2,4-dinitrophenylhydrazone is an organic compound with the chemical formula C7H10N6O4. The following is a description of some of its properties, uses, methods and safety information:

Nature:
-Appearance: valeralaldehyde 2,4-dinitrophenylhydrazone is a yellow crystalline solid.
-Solubility: Almost insoluble in water, soluble in organic solvents such as ethanol, ether and dichloromethane.

Use:
-Explosives: Valeralaldehyde 2,4-dinitrophenylhydrazone can be used to prepare various explosives as detonators or sensitizers.
-Fluorescent dye: It can also be used as a precursor of fluorescent dye, used to prepare fluorescent probes, etc.

Method:
The preparation of valeraldehyde 2,4-dinitrophenylhydrazone can be carried out by the following steps:
1. React phenylhydrazine with concentrated sulfuric acid to generate phenylhydrazine sulfate.
2. At low temperature, phenylhydrazine sulfate is reacted with valeraldehyde to obtain valeralaldehyde 2,4-dinitrophenylhydrazone.
3. Isolation and purification of the product, usually by crystallization or column chromatography and other methods.

Safety Information:
- valeraldehyde 2,4-dinitrophenylhydrazone is an explosive compound, and safety measures should be taken when storing and handling.
-Exposure to valeralaldehyde 2,4-dinitrophenylhydrazone may cause skin, eye and respiratory tract irritation and direct contact should be avoided.
-Wear suitable protective gloves, glasses and respiratory protection equipment during use or handling.
-If you eat or accidentally enter your eyes, you should seek medical attention immediately.
-Observe local codes and regulations when disposing of waste.

Last Update：2024-04-10 22:29:15