O-tolualdehyde 2,4-dinitrophenylhydrazone
O-tolualdehyde 2,4-dinitrophenylhydrazone
CAS: 1773-44-0
Molecular Formula: C14H12N4O4
O-tolualdehyde 2,4-dinitrophenylhydrazone - Names and Identifiers
| Name | O-tolualdehyde 2,4-dinitrophenylhydrazone |
| Synonyms | O-TOLUALDEHYDE-DNPH o-tolualdehyde-2,4-dnph O-TOLUALDEHYDE 2,4-DINITROPHENYLHYDRAZONE O-tolualdehyde 2,4-dinitrophenylhydrazone 2'-METHYLBENZALDEHYDE 2,4-DINITROPHENYLHYDRAZONE o-tolualdehyde-2,4-dinitrophenylhydrazone solution |
| CAS | 1773-44-0 |
| EINECS | 623-763-7 |
| InChI | InChI=1/C14H12N4O4/c1-10-4-2-3-5-11(10)9-15-16-13-7-6-12(17(19)20)8-14(13)18(21)22/h2-9,16H,1H3 |
O-tolualdehyde 2,4-dinitrophenylhydrazone - Physico-chemical Properties
| Molecular Formula | C14H12N4O4 |
| Molar Mass | 300.27 |
| Density | 1.36±0.1 g/cm3(Predicted) |
| Melting Point | 195-198°C(lit.) |
| Boling Point | 471.3±45.0 °C(Predicted) |
| Flash Point | 2℃ |
| Vapor Presure | 4.7E-09mmHg at 25°C |
| pKa | 11.23±0.10(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.638 |
O-tolualdehyde 2,4-dinitrophenylhydrazone - 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 R41 - Risk of serious damage to eyes R37/38 - Irritating to respiratory system and skin. R36 - Irritating to the eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. 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. S39 - Wear eye / face protection. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1648 3/PG 2 |
| WGK Germany | 3 |
| Hazard Class | 4.1 |
| Packing Group | III |
O-tolualdehyde 2,4-dinitrophenylhydrazone - Introduction
O-tolualdehyde 2,4-dinitrophenylhydrazone is an organic compound with the chemical formula C8H8N2O, also known as 2,4-dinitrophenylhydrazine. The following is a description of the nature, use, preparation and safety information of O-tolualdehyde 2,4-dinitrophenylhydrazone:
Nature:
-Appearance: O-tolualdehyde 2,4-dinitrophenylhydrazone is a colorless to yellow crystalline solid.
-Solubility: It is soluble in organic solvents such as ethanol, chloroform and acetic acid under acidic conditions.
-Melting point: O-tolualdehyde the melting point of 2,4-dinitrophenylhydrazone is about 149-151 degrees Celsius.
Use:
- O-tolualdehyde 2,4-dinitrophenylhydrazone is often used as an intermediate for pigment dyes.
-It is also a common reagent used to identify and quantify carbonyl compounds in the environment, such as aldehydes and ketones.
Method:
The preparation of O-tolualdehyde 2,4-dinitrophenylhydrazone is generally carried out by the following steps:
1. The reaction of O-tolualdehyde and hydrazine under acidic conditions. The O-tolualdehyde 2,4-dinitrophenylhydrazone is formed during the reaction.
2. Filtration gave a solid product which was washed and dried.
Safety Information:
O-tolualdehyde 2,4-dinitrophenylhydrazone should pay attention to the following safety matters when handling and using:
-It may cause irritation to the eyes, skin and respiratory system, so wear protective glasses, gloves and respiratory protection when handling.
-Avoid inhaling dust and skin contact. If contact occurs, rinse the affected area immediately with plenty of water.
-storage should avoid contact with oxidants, strong acid, alkali and other substances, to prevent unsafe reaction.
-In handling and storage should pay attention to fire and explosion prevention measures, and follow the relevant safety procedures.
Nature:
-Appearance: O-tolualdehyde 2,4-dinitrophenylhydrazone is a colorless to yellow crystalline solid.
-Solubility: It is soluble in organic solvents such as ethanol, chloroform and acetic acid under acidic conditions.
-Melting point: O-tolualdehyde the melting point of 2,4-dinitrophenylhydrazone is about 149-151 degrees Celsius.
Use:
- O-tolualdehyde 2,4-dinitrophenylhydrazone is often used as an intermediate for pigment dyes.
-It is also a common reagent used to identify and quantify carbonyl compounds in the environment, such as aldehydes and ketones.
Method:
The preparation of O-tolualdehyde 2,4-dinitrophenylhydrazone is generally carried out by the following steps:
1. The reaction of O-tolualdehyde and hydrazine under acidic conditions. The O-tolualdehyde 2,4-dinitrophenylhydrazone is formed during the reaction.
2. Filtration gave a solid product which was washed and dried.
Safety Information:
O-tolualdehyde 2,4-dinitrophenylhydrazone should pay attention to the following safety matters when handling and using:
-It may cause irritation to the eyes, skin and respiratory system, so wear protective glasses, gloves and respiratory protection when handling.
-Avoid inhaling dust and skin contact. If contact occurs, rinse the affected area immediately with plenty of water.
-storage should avoid contact with oxidants, strong acid, alkali and other substances, to prevent unsafe reaction.
-In handling and storage should pay attention to fire and explosion prevention measures, and follow the relevant safety procedures.
Last Update：2024-04-10 22:29:15
