Molecular Formula | C10H12N4OS
|
Molar Mass | 236.29 |
Density | 1.2752 (rough estimate) |
Melting Point | 225-230 °C |
Appearance | powder to crystal |
Color | White to Orange to Green |
pKa | 11.35±0.70(Predicted) |
Storage Condition | Room Temprature |
Refractive Index | 1.6440 (estimate) |
Physical and Chemical Properties | Light yellow crystal or crystalline powder. Decomposition at 225-230 °c. Soluble in hot alcohol, slightly soluble in cold alcohol, very slightly soluble in water, insoluble in chloroform, ether, soluble in potassium hydroxide ethanol solution. |
In vitro study | Thiacetazone is a prodrug that is activated by the mycobacterial monooxygenase EthA, which is also the activator of two other anti-tuberculosis agents, Ethionamide and Isoxyl. |
In vivo study | The K m and V max values for the N-deacetylation of Thiacetazone are 0.57 mM and 0.123 nmol of p-aminobenzaldehydethiosemicarbazone formed/min/mg cytosolic protein, respectively. The ability to metabolize Thiacetazone is the same in the livers of cat, mouse and human, but lagged significantly in that of rat. |