14531-55-6
3,5-DIMETHYL-4-NITRO-1H-PYRAZOLE
CAS: 14531-55-6
Molecular Formula: C5H7N3O2
14531-55-6 - Names and Identifiers
14531-55-6 - Physico-chemical Properties
| Molecular Formula | C5H7N3O2 |
| Molar Mass | 141.13 |
| Density | 1.339±0.06 g/cm3(Predicted) |
| Melting Point | 125.0 to 129.0 °C |
| Boling Point | 325°C(lit.) |
| Flash Point | 138°C |
| Vapor Presure | 0.00157mmHg at 25°C |
| Appearance | Bright yellow crystal |
| Maximum wavelength(λmax) | 274nm(CHCl3)(lit.) |
| pKa | 10.75±0.50(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.578 |
| MDL | MFCD00052513 |
14531-55-6 - Risk and Safety
| RTECS | UQ6585000 |
| Hazard Class | IRRITANT |
14531-55-6 - Introduction
3, also known as DMNP, is an organic compound. Its chemical formula is C7H8N2O2, the relative molecular mass of 152.15.
Nature:
1. DMNP is a yellow crystalline solid with a special flavor.
2. It is stable at room temperature, but it will decompose when heated.
3. DMNP is flammable, which can burn and release toxic gases and irritate the eyes and skin.
Use:
1. DMNP is widely used as a raw material for explosives detectors, pigments and dyes.
2. It can also be used as an intermediate for the synthesis of other organic compounds.
Method:
DMNP can be prepared by several methods, one of which includes the following steps:
1.4-nitrobenzene reacts with methyl ethyl ketone to generate 3-nitrobenzophenone.
2. 3-nitrobenzophenone is reacted with methylethylamine to obtain 3-nitro-n-methylbenzophenone.
3. React 3-nitro-n-methylbenzophenone with chloroacetic acid to generate 3.
Safety Information:
1. DMNP is a hazardous substance that may cause eye, skin and respiratory tract irritation after exposure. Wear protective gloves and goggles.
2. It is a flammable substance and should be kept away from open flames and high temperatures.
3. Storage should be sealed, away from oxidants and acids.
Please note that DMNP is a hazardous chemical and cannot be used at will. It must be used in a laboratory or professional environment and comply with relevant safety procedures.
Nature:
1. DMNP is a yellow crystalline solid with a special flavor.
2. It is stable at room temperature, but it will decompose when heated.
3. DMNP is flammable, which can burn and release toxic gases and irritate the eyes and skin.
Use:
1. DMNP is widely used as a raw material for explosives detectors, pigments and dyes.
2. It can also be used as an intermediate for the synthesis of other organic compounds.
Method:
DMNP can be prepared by several methods, one of which includes the following steps:
1.4-nitrobenzene reacts with methyl ethyl ketone to generate 3-nitrobenzophenone.
2. 3-nitrobenzophenone is reacted with methylethylamine to obtain 3-nitro-n-methylbenzophenone.
3. React 3-nitro-n-methylbenzophenone with chloroacetic acid to generate 3.
Safety Information:
1. DMNP is a hazardous substance that may cause eye, skin and respiratory tract irritation after exposure. Wear protective gloves and goggles.
2. It is a flammable substance and should be kept away from open flames and high temperatures.
3. Storage should be sealed, away from oxidants and acids.
Please note that DMNP is a hazardous chemical and cannot be used at will. It must be used in a laboratory or professional environment and comply with relevant safety procedures.
Last Update：2024-04-10 22:29:15
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View History
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2905-62-6