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| CAS No.: | 14432-16-7 |
|---|---|
| Name: | 2-Chloro-4-nitropyridine 1-oxide |
| Molecular Structure: | |
|
|
|
| Formula: | C5H3ClN2O3 |
| Molecular Weight: | 174.543 |
| Synonyms: | 2-Chloro-4-nitropyridine N-oxide;NSC 527701;Pyridine,2-chloro-4-nitro-, 1-oxide; |
| EINECS: | 238-404-6 |
| Density: | 1.62 g/cm3 |
| Melting Point: | 52-56 °C(lit.) |
| Boiling Point: | 405.9 °C at 760 mmHg |
| Flash Point: | 199.3 °C |
| Appearance: | light yellow solid |
| Hazard Symbols: |
 T
|
| Risk Codes: | 23/24/25-36/37/38 |
| Safety: | 26-36-45-36/37/39-28 |
| Transport Information: | UN 2811 6.1/PG 3 |
| PSA: | 71.28000 |
| LogP: | 2.19990 |
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- 73441-42-6METHYL-5-CHLORO-2,2-DIMETHYLVALERATE
- 2402-95-1
2-chloropyridine-N-oxide
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| nitration; | 93% |
| With sulfuric acid; nitric acid at 90℃; for 4h; | 78% |
| With sulfuric acid; nitric acid for 2h; Nitration; | 72% |
- 23056-36-2
2-chloro-4-nitropyridine
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| Stage #1: 2-chloro-4-nitropyridine With urea hydrogen peroxide adduct; trifluoroacetic acid In dichloromethane at 0 - 20℃; for 72h; Stage #2: With sodium dithionite In dichloromethane; water for 0.25h; Stage #3: With hydrogenchloride In dichloromethane; water | 90% |
| With urea hydrogen peroxide adduct; trifluoroacetic anhydride In dichloromethane at 0 - 20℃; for 4.5h; | 84% |
- 20295-64-1
2-chloropyridine N-oxide hydrochloride
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| With sulfuric acid; nitric acid at 90 - 100℃; for 2.5h; | 82.5% |
| With sodium hydroxide; nitric acid In sulfuric acid | 37% |
| With sulfuric acid; nitric acid In (2S)-N-methyl-1-phenylpropan-2-amine hydrate | |
| With sulfuric acid; nitric acid In (2S)-N-methyl-1-phenylpropan-2-amine hydrate |
- 109-09-1
2-chloropyridine
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 91 percent / aq. H2O2 / trifluoroacetic acid / 4 h 2: 72 percent / aq. HNO3, H2SO4 / 2 h View Scheme | |
| Multi-step reaction with 2 steps 1: 30percent aq. H2O2, AcOH / 48 h / 60 °C 2: HNO3, conc. H2SO4 / 2.5 h / 90 °C View Scheme | |
| Multi-step reaction with 2 steps 1: H2O2 / acetic anhydride 2: HNO3, H2SO4 View Scheme |
- 14150-95-9
2-aminopyridine N-oxide
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: concentrated sulfuric acid; peroxomonosulfuric acid 3: concentrated sulfuric acid; nitric acid View Scheme |
- 2403-02-3
4-carboxy-2-nitropyridine N-oxide
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 2: concentrated sulfuric acid; nitric acid View Scheme |
- 2402-95-1
2-chloropyridine-N-oxide
A
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| With sulfuric acid; nitric acid |
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
| Conditions | Yield |
|---|---|
| In ethanol at 80℃; for 13h; | 99% |
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
- 14432-12-3
4-Amino-2-chloropyridine
| Conditions | Yield |
|---|---|
| With hydrogenchloride; iron In ethanol for 3h; Reduction; Heating; | 95% |
| With hydrogen; Ra-Ni In methanol | 90% |
| With hydrogenchloride; iron In ethanol; water Reflux; | 85% |
- 14432-16-7
2-chloro-4-nitropyridine-N-oxide
- 13602-59-0
2,4-dichloropyridine 1-oxide
| Conditions | Yield |
|---|---|
| With acetyl chloride at 70 - 75℃; for 0.416667h; | 94% |
| With acetyl chloride for 0.666667h; | 80% |
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Chemistry
The Molecular Structure of 2-Chloro-4-nitropyridine 1-oxide (CAS NO.14432-16-7):
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Empirical Formula: C5H3ClN2O3
Molecular Weight: 174.5419
Nominal Mass: 174 Da
Average Mass: 174.5419 Da
Monoisotopic Mass: 173.98322 Da
Index of Refraction: 1.629
Molar Refractivity: 38.1 cm3
Molar Volume: 107.1 cm3
Surface Tension: 67 dyne/cm
Density: 1.62 g/cm3
Flash Point: 199.3 °C
Enthalpy of Vaporization: 63.2 kJ/mol
Boiling Point: 405.9 °C at 760 mmHg
Melting Point :151-155°C
Vapour Pressure: 1.98E-06 mmHg at 25°C
Appearance: light yellow solid
IUPAC Name: 2-chloro-4-nitro-1-oxidopyridin-1-ium
Synonyms: Otava-bb bb7017520053 ; Aurora 23245 ; (2-Chloropyridin-4-yl)(hydroxy)oxoammonium ; 2-Chloro-4-nitropyridine 1-oxide ; 2-Chloro-4-nitropyridine-n-oxide ; Akos bbs-00001358 ; 2-Chloro-4-nitro-1-oxidopyridin-1-ium ; 2-Chloro-4-nitropyridine-n-oxide ,97%
Product Categories: Pyridine;Pyridines;C5Heterocyclic Building Blocks;Halogenated Heterocycles;Heterocyclic Building Blocks
Safety Profile
Hazard Codes: 
T
Risk Statements: 23/24/25-36/37/38
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36-45-36/37/39-28
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36: Wear suitable protective clothing
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
S28:After contact with skin, wash immediately with plenty of soap-suds
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3