5-(4-bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol(CAS: 494194-50-2)

5-(4-bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS: 494194-50-2) is a white or off-white crystalline solid. Its molecular weight is approximately 333.02 g/mol. This compound is only slightly soluble in water but soluble in organic solvents such as ethanol and acetone. It is an active compound with high reactivity, particularly towards nucleophiles and electrophiles. It is unstable under acidic conditions and may decompose.

5-(4-bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol is typically synthesized via the reaction of 4-bromobenzoyl isothiocyanate with methyl 4-methyl-1,2,4-triazole-3-carboxylate in the presence of a base such as potassium carbonate. The reaction is carried out in a suitable solvent like dimethylformamide (DMF) at room temperature. The yield is around 70-80%, and the product is isolated by column chromatography.

5-(4-bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS: 494194-50-2) is used in the pharmaceutical industry for the development of new drugs due to its biological activity. It is also utilized in the synthesis of materials for sensors and in the preparation of semiconductors due to its electronic properties.

When handling 5-(4-bromophenyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS: 494194-50-2), it is important to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The substance should be handled in a fume hood due to its volatility. Spills should be cleaned up immediately using appropriate cleaning materials, and proper disposal methods should be followed. Always refer to the Safety Data Sheet (SDS) for detailed safety information.