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Cas Database |
| Name |
2-Pyridinol-1-oxide |
EINECS | 236-100-8 |
| CAS No. | 13161-30-3 | Density | 1.431 g/cm3 |
| PSA | 45.69000 | LogP | 0.82070 |
| Solubility | 331g/L | Melting Point |
149-152 °C |
| Formula | C5H5NO2 | Boiling Point | 387.694 °C at 760 mmHg |
| Molecular Weight | 111.1 | Flash Point | 188.271 °C |
| Transport Information | N/A | Appearance | Weight 20% solution in water |
| Safety | 26-36-22 | Risk Codes | 36/37/38-40 |
| Molecular Structure |
|
Hazard Symbols |
 Xi, Xn
|
| Synonyms |
2-Hydroxypyridine1-oxide;2-Hydroxypyridine N-oxide;2-Pyridinol-N-oxide;NSC 406972;Oxypyrion; |
Article Data | 12 |
2-Pyridinol-1-oxide Synthetic route
- 142-08-5
2-hydroxypyridin
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| With titanium silicate; dihydrogen peroxide In methanol at 60℃; for 25h; Oxidation; | 92% |
| With oxygen; ruthenium trichloride In 1,2-dichloro-ethane at 20℃; under 760 Torr; for 12h; | 52% |
| With Perbenzoic acid In 1,4-dioxane; water at 20℃; Thermodynamic data; Kinetics; Mechanism; other temp. (25, 30, 35 deg C); ΔS(excit.); |
- 74405-16-6
2,2-dimethyl-4-(2-oxo-1H-pyrid-1-yl)oxy-2H-1,3-benzoxazine
A
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| With hydrogenchloride for 3h; Product distribution; Ambient temperature; | A 90% B n/a |
- 65332-95-8
N-oxy-2-pyridyl phenacyl sulfoxide
- 513-81-5
2,3-dimethyl-buta-1,3-diene
A
- 13161-30-3
2-hydroxy-pyridine N-oxide
B
- 80738-10-9
2-Benzoyl-3,6-dihydro-4,5-dimethyl-2H-thiopyran
| Conditions | Yield |
|---|---|
| In 1,4-dioxane at 100℃; for 24h; Yields of byproduct given; | A n/a B 85% |
- 20773-98-2
2-methoxypyridine N-oxide
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| With hydrogenchloride; water at 90 - 100℃; for 16h; | 54% |
| With hydrogenchloride Heating; |
- 694-59-7
pyridine N-oxide
A
- 6602-28-4
3-hydroxypyridine N-oxide
B
- 6890-62-6
4-hydroxypyridine N-oxide
C
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| With water; hexachloroiridate(IV); dinitrogen monoxide Rate constant; Irradiation; |
- 65332-95-8
N-oxy-2-pyridyl phenacyl sulfoxide
A
- 13161-30-3
2-hydroxy-pyridine N-oxide
B
- 80738-10-9
2-Benzoyl-3,6-dihydro-4,5-dimethyl-2H-thiopyran
| Conditions | Yield |
|---|---|
| With 2,3-dimethyl-buta-1,3-diene In 1,4-dioxane at 100℃; for 24h; Title compound not separated from byproducts; | A 98 % Spectr. B 99 % Spectr. |
- 1628-89-3
2-methoxypyridine
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: AcOH; H2O2 2: aq. HCl / Heating View Scheme |
- 109-09-1
2-chloropyridine
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 3 steps 1: 60 percent / MCPBA / CHCl3 / 24 h / 65 - 70 °C 2: 50 percent / NaOMe / 1 h / Heating 3: 54 percent / HCl, H2O / 16 h / 90 - 100 °C View Scheme |
- 2402-95-1
2-chloropyridine-N-oxide
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 50 percent / NaOMe / 1 h / Heating 2: 54 percent / HCl, H2O / 16 h / 90 - 100 °C View Scheme |
- 1259401-62-1
2-oxopyridin-1(2H)-yl 4-nitrobenzenesulfonate
- 13161-30-3
2-hydroxy-pyridine N-oxide
| Conditions | Yield |
|---|---|
| With dihydrogen peroxide In N-(2-hydroxyethyl)piperazine-N-(2-hydroxyethyl)piperazine-N'-ethanesulfonic acid pH=7.5; |
2-Pyridinol-1-oxide Chemical Properties
IUPAC Name: 1-Hydroxypyridin-2-one
Following is the structure of 2-Hydroxypyridine-N-oxide (CAS NO.13161-30-3):
Empirical Formula: C5H5NO2
Molecular Weight: 111.0987
EINECS: 236-100-8
Index of Refraction: 1.628
Molar Refractivity: 27.55 cm3
Molar Volume: 77.5 cm3
Density: 1.431 g/cm3
Flash Point: 106.4 °C
Melting point 149-152 °C
Storage temp.: Store at RT.
Surface Tension: 69.8 dyne/cm
Enthalpy of Vaporization: 56.89 kJ/mol
Boiling Point: 252.3 °C at 760 mmHg
Vapour Pressure of 2-Hydroxypyridine-N-oxide (CAS NO.13161-30-3): 0.00304 mmHg at 25 °C
Product Categories of 2-Hydroxypyridine-N-oxide (CAS NO.13161-30-3): Pyridines, Pyrimidines, Purines and Pteredines
Canonical SMILES: C1=CC(=O)N(C=C1)O
InChI: InChI=1S/C5H5NO2/c7-5-3-1-2-4-6(5)8/h1-4,8H
InChIKey: SNUSZUYTMHKCPM-UHFFFAOYSA-N
2-Pyridinol-1-oxide Safety Profile
Hazard Codes: 
Xi,
Xn
Risk Statements: 36/37/38-40
R36/37/38:Irritating to eyes, respiratory system and skin.
R40:Limited evidence of a carcinogenic effect.
Safety Statements: 26-36-22
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S22:Do not breathe dust.
WGK Germany: 3
2-Pyridinol-1-oxide Specification
2-Hydroxypyridine-N-oxide , its cas register number is 13161-30-3. It also can be called 2-Hydroxypyridine 1-oxide ; and 2-Pyridinol-1-oxide .
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