CAS 622-59-3: p-Tolyl isothiocyanate

4-Methylphenyl isothiocyanate

p-Tolyl isothiocyanate has been used in the preparation of 6-[1-amino-3-(p-tolyl)-thiourea]-2-ethylbenzo[de]isoquinoline-1,3-dione. It is used as capping agent to cap the N-terminal ends of polypeptide. It is also used as pharmaceutical intermediate. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

p-Tolyl isothiocyanate belongs to a class of compounds called isothiocyanates. It has been shown to have antibacterial activity against Gram-negative bacteria, including Escherichia coli and Pseudomonas aeruginosa. The compound inhibits the synthesis of bacterial proteins by binding to the amino groups on their ribosomes, which prevents the attachment of tRNA molecules and blocks protein synthesis. p-Tolyl isothiocyanate can be synthesized in two steps starting from 2-chlorobenzaldehyde and 3-methylthiopropionaldehyde. This molecule has also been shown to have antiadhesive effects against Streptococcus mutans, which are bacteria that cause tooth decay.