Name | Thioisonicotinamide |
Synonyms | AKOS BBS-00004465 THIOISONICOTINAMIDE Thioisonicotinamide Isothionicotinamide isonicotinthioamide PYRIDINE-4-THIOAMIDE SALOR-INT L496626-1EA 4-PYRIDYLTHIOCARBOXAMIDE thio-4-pyridinecarboxamid 4-PYRIDINETHIOCARBOXAMIDE pyridine-4-carbothioamide Pyridine-4-thiocarboxamide PYRIDINE-4-CARBOTHIOIC ACID AMIDE |
CAS | 2196-13-6 |
EINECS | 218-592-6 |
InChI | InChI=1/C6H6N2S/c7-6(9)5-1-3-8-4-2-5/h1-4H,(H2,7,9) |
InChIKey | KPIIGXWUNXGGCP-UHFFFAOYSA-N |
Molecular Formula | C6H6N2S |
Molar Mass | 138.19 |
Density | 1.265 |
Melting Point | 199 °C (D) |
Boling Point | 279℃ |
Flash Point | 123℃ |
Solubility | Methanol; Ethyl Acetate |
Vapor Presure | 0.00415mmHg at 25°C |
Appearance | Crystalline Powder |
Color | Cream to beige to yellow-brown |
BRN | 2174 |
pKa | 11.70±0.29(Predicted) |
Storage Condition | under inert gas (nitrogen or Argon) at 2–8 °C |
Refractive Index | 1.5300 (estimate) |
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R42/43 - May cause sensitization by inhalation and skin contact. R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
Safety Description | 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. S36 - Wear suitable protective clothing. |
WGK Germany | 3 |
RTECS | US4204000 |
TSCA | Yes |
HS Code | 29333990 |
Hazard Class | IRRITANT |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Uses | Thio-isoniotinamide can be used as an intermediate in pharmaceutical synthesis, such as 2-ethylthio-isoniotinamide. |
preparation method | synthesis of thioisoniotinamide: 294g of 20% ammonium sulfide aqueous solution is put into a four-neck bottle, 4.2g of sulfur is added under stirring, heated and stirred until completely dissolved, 45g of 4-cyanopyridine is added, heated to 40 ℃, and kept warm for 4 hours; After the reaction is over, the temperature is reduced to 25 ℃, filtration, the filter cake was washed with distilled water at 70 ℃ until neutral to obtain thionicotinamide and dried to obtain 47.3g. |
Biological activity | Thioisonicotinamide (Pyridine-4-carbothioamide, Isothionicotinamide, 4-Pyridylthiocarboxamide) is a synthetic intermediate product used in drug synthesis. |