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Cas Database |
| Name |
Pyrazine-2-carbaldehyde |
EINECS | N/A |
| CAS No. | 5780-66-5 | Density | 1.235 g/cm3 |
| PSA | 42.85000 | LogP | 0.28910 |
| Solubility | N/A | Melting Point |
N/A |
| Formula | C5H4N2O | Boiling Point | 192.079 °C at 760 mmHg |
| Molecular Weight | 108.1 | Flash Point | 70.501 °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | 26-36/37/39 | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
Pyrazinecarboxaldehyde(7CI,8CI,9CI);2-Formylpyrazine;2-Pyrazinecarboxaldehyde; |
Article Data | 30 |
Pyrazine-2-carbaldehyde Synthetic route
| Conditions | Yield |
|---|---|
| Stage #1: methyl pyrazine-2-carboxylate With lithium aluminium tetrahydride In tetrahydrofuran at -78 - 72℃; for 0.333333h; Stage #2: With hydrogenchloride; water | 100% |
| With lithium aluminium tetrahydride In tetrahydrofuran at -83℃; for 2h; | 68% |
| With lithium aluminium tetrahydride In tetrahydrofuran at -78℃; for 1.83333h; Inert atmosphere; Schlenk technique; | 53.4% |
- 5780-66-5
pyrazinecarboxaldehyde
| Conditions | Yield |
|---|---|
| With hydroxylamine hydrochloride; sodium acetate In ethanol at 50℃; for 2h; Temperature; | 96.8% |
- 123-32-0
2,5-dimethyl-pyrazine
A
- 77666-94-5
2,5-pyrazine-dicarboxaldehyde
B
- 50866-30-3
5-methyl-2-pyrazinecarboxaldehyde
C
- 5780-66-5
pyrazinecarboxaldehyde
| Conditions | Yield |
|---|---|
| With air; vanadia; molybdenum(VI) oxide In water for 2.77778E-05h; Product distribution; different ratio of V:Mo, different temperature, different time of contact; | A 10% B 21% C n/a |
| With air; vanadia; molybdenum(VI) oxide In water at 360℃; for 2.77778E-05h; | A 10% B 21% C n/a |
| Conditions | Yield |
|---|---|
| With tert.-butylhydroperoxide; selenium(IV) oxide In 1,4-dioxane for 3h; Heating; | 11% |
| Conditions | Yield |
|---|---|
| With selenium(IV) oxide In 1,4-dioxane Heating; | |
| With manganese(IV) oxide In acetone Sonication; | |
| With Dess-Martin periodane In dichloromethane at 20℃; for 1h; | 100 mg |
| With 2,2'-azinobis(3-ethylbenzthiazolinesulfonate); horse-radish peroxidase; choline oxidase from Arthrobacter cholorphenolicus, mutant S101A/D250G/F253R/V355T/F357R/M359R In aq. phosphate buffer at 30℃; for 24h; pH=8; Catalytic behavior; Reagent/catalyst; Enzymatic reaction; |
| Conditions | Yield |
|---|---|
| β-VO(PO3)2 In gas at 400℃; Product distribution; Rate constant; selectivity of reaction, rates of partial and total oxidation; |
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 95 percent / conc. H2SO4 / 48 h / Heating 2: 26 percent / DIBAL / CH2Cl2 View Scheme |
- 67936-72-5
pyrazine carboxaldehyde diethyl acetal
- 593-56-6
N-methoxylamine hydrochloride
- 5780-66-5
pyrazinecarboxaldehyde
| Conditions | Yield |
|---|---|
| With sodium hydrogencarbonate In chloroform; Petroleum ether |
- 109-08-0
2-Methylpyrazine
A
- 25594-37-0
2-methylpyrazine 4-oxide
B
- 31396-35-7
2-methylpyrazine 1-oxide
C
- 98-97-5
2-pyrazylcarboxylic acid
D
- 5780-66-5
pyrazinecarboxaldehyde
E
- 874-54-4
pyrazine-2-carboxylic acid-4-oxide
F
- 32046-09-6
pyrazine-2-carboxylic acid-1-oxide
| Conditions | Yield |
|---|---|
| With acetyl peroxyborate In water at 94.84℃; for 5h; | A n/a B n/a C 56.3 mol % D 4.5 mol % E n/a F n/a |
| With acetyl peroxyborate In water at 94.84℃; for 5h; | A n/a B n/a C 28.5 mol % D 41.2 mol % E n/a F n/a |
- 109-08-0
2-Methylpyrazine
- 64-19-7
acetic acid
A
- 73763-94-7
acetate de (pyrazinyl-2) methyle
B
- 5780-66-5
pyrazinecarboxaldehyde
| Conditions | Yield |
|---|---|
| With copper(l) iodide; oxygen; palladium diacetate at 120℃; for 24h; Autoclave; |
Pyrazine-2-carbaldehyde Chemical Properties
Molecule structure of 2-Pyrazinecarboxaldehyde (CAS NO.5780-66-5):
Molecular Weight: 108.0981 g/mol
Molecular Formula: C5H4N2O
Density: 1.234 g/cm3
Boiling Point: 192.1 °C at 760 mmHg
Flash Point: 70.5 °C
Index of Refraction: 1.581
Molar Refractivity: 29.18 cm3
Molar Volume: 87.5 cm3
Polarizability: 11.57×10-24 cm3
Surface Tension: 57 dyne/cm
Enthalpy of Vaporization: 42.83 kJ/mol
Vapour Pressure: 0.498 mmHg at 25 °C
InChI: InChI=1/C5H4N2O/c8-4-5-3-6-1-2-7-5/h1-4H
InChIKey: DXBWJLDFSICTIH-UHFFFAOYAA
Product Categories of 2-Pyrazinecarboxaldehyde (CAS NO.5780-66-5): Heterocycles; Aldehydes; Pyrazines, Pyrimidines & Pyridazines; Pyrazines, Pyrimidines & Pyridazines
Pyrazine-2-carbaldehyde Safety Profile
Hazard Codes: 
Xi
Pyrazine-2-carbaldehyde Specification
2-Pyrazinecarboxaldehyde (CAS NO.5780-66-5) is also named as Pyrazin-2-carbaldehyd ; Pyrazine-2-carbaldehyde .
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