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| CAS No.: | 943-03-3 |
|---|---|
| Name: | 2-Cyano-6-methoxybenzothiazole |
| Article Data: | 3 |
| Molecular Structure: | |
|
|
|
| Formula: | C9H6N2OS |
| Molecular Weight: | 190.225 |
| Synonyms: | 2-Benzothiazolecarbonitrile,6-methoxy-;6-Methoxy-2-benzothiazolecarbonitrile;NSC 377382; |
| Density: | 1.36 g/cm3 |
| Melting Point: | 129-131 °C(lit.) |
| Boiling Point: | 334.918 °C at 760 mmHg |
| Flash Point: | 156.353 °C |
| Appearance: | off-white to light yellow crystalline powder |
| Hazard Symbols: |
 Xn, Xi
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-36/37 |
| PSA: | 74.15000 |
| LogP: | 2.17658 |
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Chemistry
Molecular Structure:
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Molecular Formula: C9H6N2OS
Molecular Weight: 190.2217
IUPAC Name: 6-Methoxy-1,3-benzothiazole-2-carbonitrile
Synonyms of 2-Cyano-6-methoxybenzothiazole (CAS NO.943-03-3): NSC 377382 ; 6-Methoxy-2-benzothiazole-carbonitrile ; 6-Methoxy-1,3-Benzothiazole-2-carbonitrile ; 6-Methoxy-benzothiazole-2-carbonitrile ; 2-Benzothiazolecarbonitrile, 6-methoxy- ; 6-Methoxy-2-cyanobenzothiazole
CAS NO: 943-03-3
Product Categories: BENZOTHIAZOLE ; Sulphur Derivatives ; pharmacetical
Melting point: 129-131 °C
Index of Refraction: 1.654
Molar Refractivity: 51.18 cm3
Molar Volume: 139.5 cm3
Surface Tension: 65.4 dyne/cm
Density: 1.36 g/cm3
Flash Point: 156.4 °C
Enthalpy of Vaporization: 57.79 kJ/mol
Boiling Point: 334.9 °C at 760 mmHg
Vapour Pressure: 0.000124 mmHg at 25°C
Uses
2-Cyano-6-methoxybenzothiazole (CAS NO.943-03-3) is mainly used as dye intermediates.For example, we used in the manufacture of Cationic Brilliant Blue RL, Huang cation 2RL, prepared by its 6-methoxy-3-methyl-Benzothiazole hydrazone, and then get the production such as cationic Huang GL.
Production
Firstly,through the reaction of p-Anisidine hydrochloride and sodium thiocyanate, we can get methoxy-phenyl thiourea, and then by closed-loop derived from Sulfur and chloride to get the 2-Cyano-6-methoxybenzothiazole.
Safety Profile
Hazard Codes 2-Cyano-6-methoxybenzothiazole (CAS NO.943-03-3): 
Xn,Xi
Risk Statements: 20/21/22-36/37/38
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37: Wear suitable protective clothing and gloves.
RIDADR: 3439
WGK Germany: 3