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| CAS No.: | 4774-14-5 |
|---|---|
| Name: | 2,6-Dichloropyrazine |
| Article Data: | 13 |
| Molecular Structure: | |
|
|
|
| Formula: | C4H2Cl2N2 |
| Molecular Weight: | 148.979 |
| Synonyms: | Pyrazine, 2,6-dichloro-; |
| EINECS: | 225-316-8 |
| Density: | 1.493 g/cm3 |
| Melting Point: | 53-56 °C |
| Boiling Point: | 187.466 °C at 760 mmHg |
| Flash Point: | 83.8 °C |
| Appearance: | White powder |
| Hazard Symbols: |
 Xn,  Xi
|
| Risk Codes: | 36/37/38-20/21/22 |
| Safety: | 26-37/39-36/37/39-22-36 |
| PSA: | 25.78000 |
| LogP: | 1.78340 |
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- 14508-49-7
2-chloropyrazin
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| With pyridine; chlorine at 110℃; for 2h; Reagent/catalyst; | 87.3% |
| With sulfuryl dichloride at 120℃; |
| Conditions | Yield |
|---|---|
| With trichlorophosphate for 6h; Heating; | 84% |
- 6863-76-9
3-chloropyrazine 1-oxide
A
- 19745-07-4
2,5-dichloropyrazine
B
- 4858-85-9
2,3-dichloropyrazine
C
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| With trichlorophosphate for 2h; Heating; Yield given. Yields of byproduct given; | |
| With 1,8-diazabicyclo[5.4.0]undec-7-ene; trichlorophosphate for 2h; Heating; Yield given. Yields of byproduct given; |
| Conditions | Yield |
|---|---|
| With trichlorophosphate for 2h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
- 6863-76-9
3-chloropyrazine 1-oxide
A
- 14508-49-7
2-chloropyrazin
B
- 19745-07-4
2,5-dichloropyrazine
C
- 4858-85-9
2,3-dichloropyrazine
D
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| With trichlorophosphate for 2h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
- 16025-16-4
2-chloropyrazine 1-oxide
A
- 14508-49-7
2-chloropyrazin
B
- 4858-85-9
2,3-dichloropyrazine
C
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| With trichlorophosphate for 2h; Heating; Yield given. Yields of byproduct given. Title compound not separated from byproducts; |
| Conditions | Yield |
|---|---|
| at 120℃; |
- 290-37-9
1,4-pyrazine
- 7732-18-5
water
- 7782-50-5
chlorine
A
- 14508-49-7
2-chloropyrazin
B
- 19745-07-4
2,5-dichloropyrazine
C
- 4858-85-9
2,3-dichloropyrazine
D
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| at 350℃; Product distribution; |
- 14508-49-7
2-chloropyrazin
A
- 4774-14-5
2,6-dichloropyrazine
| Conditions | Yield |
|---|---|
| With chlorine at 475℃; |
| Conditions | Yield |
|---|---|
| With water; chlorine at 350℃; |
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Chemistry
IUPAC name: 2,6-Dichloropyrazine
Molecular Structure of 2,6-Dichloropyrazine (CAS NO.4774-14-5):
Molecular formula: C4H2Cl2N2
Molecular Weight: 148.98 g/mol
EINECS: 225-316-8
Melting point: 55-58 °C(lit.)
Molar Refractivity: 32.22 cm3
Molar Volume: 99.7 cm3
Flash Point: 83.8 °C
Density: 1.493 g/cm3
Index of Refraction: 1.559
Surface Tension: 51.5 dyne/cm
Enthalpy of Vaporization: 40.63 kJ/mol
Boiling Point: 187.5 °C at 760 mmHg
Vapour Pressure: 0.867 mmHg at 25 °C
Appearance of 2,6-Dichloropyrazine (CAS NO.4774-14-5) White Powder
Canonical SMILES: C1=C(N=C(C=N1)Cl)Cl
InChI: InChI=1S/C4H2Cl2N2/c5-3-1-7-2-4(6)8-3/h1-2H
InChIKey: LSEAAPGIZCDEEH-UHFFFAOYSA-N
Uses
2,6-Dichloropyrazine (CAS NO.4774-14-5) is used for medicine, pesticide intermediates and mainly used as livestock's health medicine intermediate.
Toxicity Data With Reference
2,6-Dichloropyrazine (CAS NO.4774-14-5) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated. You can see actual entry in RTECS for complete information.
Safety Profile
Hazard Symbols: 
Xn
Risk Codes: R20/21/22;R36/37/38
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Description: S22;S26;S36/37/39
S22:Do not breathe dust.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
WGK Germany: 3
HazardClass: Irritant
Specification
2,6-Dichloropyrazine , its cas register number is 4774-14-5. It also can be called 2,6-Dichlor-pyrazin ; Pyrazine, 2,6-dichloro- ; and 2,6-Dichloropyrazine,99% .
2,6-Dichloropyrazine (CAS NO.4774-14-5) is stable under normal temperatures and pressures. And it should avoid the condition like incompatible materials, ignition sources. It is also incompatibilities with other materials strong oxidizing agents, strong reducing agents, strong acids, strong bases. while, its hazardous decomposition products are hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide. And its hazardous polymerization has not been reported.
2,6-Dichloropyrazine (CAS NO.4774-14-5) is harmful and irritant. It is irritating to eyes, respiratory system and skin and harmful by inhalation, in contact with skin and if swallowed. So you should in case of contact with eyes, rinse immediately with plenty of water and seek medical advice and wear suitable protective clothing, gloves and eye/face protection and do not empty into drains.