Product name: 2-Mercaptobenzothiazole
Catalog #: 8410011
CAS No.: 149-30-4
Molecular Formula: C7H5NS2
Molecular Weight: 167.25
2-MBT, proposed by Evans as an additive in carbodiimides based coupling schemes, substituting HOBt, Drew our attention. Thus, pKa calculations carried out with ChemAxon software showed that the pKa of both tautomers of 2-MBT (SH tautomer, 7.49) was higher than that of HOSu (pKa HOSu, 7.19) making the 2-MBT derivatives potentially less reactive than those bearing OSu as the leaving group.