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Cas Database |
| Name |
2-(methylthio)pyrazine |
EINECS | 244-675-1 |
| CAS No. | 21948-70-9 | Density | 1.19 g/cm3 |
| PSA | 51.08000 | LogP | 1.19850 |
| Solubility | N/A | Melting Point |
44 °C |
| Formula | C5H6N2S | Boiling Point | 221.2 °C at 760 mmHg |
| Molecular Weight | 126.182 | Flash Point | 87.6 °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | 22-24/25-39-26 | Risk Codes | 22-37/38-41 |
| Molecular Structure |
|
Hazard Symbols |
 Xn
|
| Synonyms |
Pyrazine,(methylthio)- (6CI,7CI,8CI,9CI);(Methylthio)pyrazine;2-Methylmercaptopyrazine;Methyl pyrazinyl sulfide;Pyrazinyl methyl sulfide; |
Article Data | 9 |
2-(methylthio)pyrazine Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| In 1-methyl-pyrrolidin-2-one at 80℃; for 0.0138889h; microwave irradiation; | 88% |
| In N,N-dimethyl-formamide at 25℃; for 24h; Inert atmosphere; | 49% |
Conditions
| Conditions | Yield |
|---|---|
| With 1,4-diaza-bicyclo[2.2.2]octane; fac-tris(2-phenylpyridinato-N,C2')iridium(III); dimethyl sulfoxide In acetonitrile at 20℃; for 24h; Irradiation; Sealed tube; chemoselective reaction; | 85% |
Conditions
| Conditions | Yield |
|---|---|
| In neat (no solvent) at 60℃; for 16h; Sealed tube; | 57% |
Conditions
| Conditions | Yield |
|---|---|
| With rat liver microsomes In phosphate buffer at 37℃; for 0.5h; pH=7.5; Enzyme kinetics; Methylation; Enzymatic reaction; |
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 2-chloropyrazin With potassium tert-butylate; thiourea In dimethyl sulfoxide for 3h; UV-irradiation; Stage #2: methyl iodide In water; dimethyl sulfoxide | A n/a B 83 % Chromat. |
Conditions
| Conditions | Yield |
|---|---|
| In acetonitrile at 20℃; for 0.0833333h; | 95% |
- 17151-48-3
tributyl(4-chlorophenyl)stannane
- 21948-70-9
2-(methylthio)pyrazine
- 108030-79-1
2 (4-chlorophenyl)-pyrazine
Conditions
| Conditions | Yield |
|---|---|
| With trans benzyl(chloro)bis(triphenylphosphine)palladium(II); copper(I) 2-hydroxy-3-methylbenzoate In tetrahydrofuran at 50℃; | 92% |
- 7677-24-9
trimethylsilyl cyanide
- 21948-70-9
2-(methylthio)pyrazine
- 128142-12-1
3-(methylthio)pyrazine-2-carbonitrile
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 2-(methylthio)pyrazine With trifluoromethylsulfonic anhydride In chloroform at 20℃; for 1h; Inert atmosphere; Sealed tube; Stage #2: trimethylsilyl cyanide In chloroform at 60℃; for 3h; Inert atmosphere; Sealed tube; Stage #3: With 4-methyl-morpholine In chloroform at 60℃; for 17h; Inert atmosphere; Sealed tube; | 92% |
Conditions
| Conditions | Yield |
|---|---|
| at 80℃; for 2h; | 90% |
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 2-(methylthio)pyrazine With 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex In tetrahydrofuran at -20℃; for 4h; Inert atmosphere; Schlenk technique; Stage #2: zinc trimethylacetate In tetrahydrofuran at 0 - 25℃; for 0.25h; Inert atmosphere; Schlenk technique; | 89% |
2-(methylthio)pyrazine Chemical Properties
Molecular Formula: C5H6N2S
Molar mass: 126.1795 g/mol
Density: 1.19 g/cm3
Flash Point: 87.6 °C
Melting point: 44 °C
Index of Refraction: 1.574
Boiling Point: 221.2 °C at 760 mmHg
Vapour Pressure: 0.161 mmHg at 25°C
Structure of 2-(Methylthio)pyrazine(21948-70-9) :
Synonyms of2-(Methylthio)pyrazine(21948-70-9) : Pyrazine, (methylthio)- ; 2-(Methylmercapto)pyrazine
Product Categories of 2-(Methylthio)pyrazine(21948-70-9) : Pyrazines;pyrazine Flavor;Chlorop yrazines
Molar mass: 126.1795 g/mol
Density: 1.19 g/cm3
Flash Point: 87.6 °C
Melting point: 44 °C
Index of Refraction: 1.574
Boiling Point: 221.2 °C at 760 mmHg
Vapour Pressure: 0.161 mmHg at 25°C
Structure of 2-(Methylthio)pyrazine(21948-70-9) :
Synonyms of2-(Methylthio)pyrazine(21948-70-9) : Pyrazine, (methylthio)- ; 2-(Methylmercapto)pyrazine
Product Categories of 2-(Methylthio)pyrazine(21948-70-9) : Pyrazines;pyrazine Flavor;Chlorop yrazines
2-(methylthio)pyrazine Uses
2-(Methylthio)pyrazine(21948-70-9) can be used as a daily and edible flavor.
2-(methylthio)pyrazine Safety Profile
Hazard Codes: Xn
Risk Statements:
22: Harmful if swallowed
37: Irritating to the respiratory system
38: Irritating to the skin
41: Risk of serious damage to eyes
Safety Statements:
22: Do not breathe dust
24: Avoid contact with skin
25: Avoid contact with eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
39: Wear eye/face protection
Risk Statements:
22: Harmful if swallowed
37: Irritating to the respiratory system
38: Irritating to the skin
41: Risk of serious damage to eyes
Safety Statements:
22: Do not breathe dust
24: Avoid contact with skin
25: Avoid contact with eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
39: Wear eye/face protection
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2-(Methylthio)pyrazine
