Chemical Properties
yellow fine crystalline powder
Uses
2-Nitro-5-thiocyanatobenzoic acid (NTCB) is a highly reactive reagent that transfers its cyano group rapidly to a nucleophilic thiolate. 2-Nitro-5-thiocyanatobenzoic acid has been proposed as a reagent for converting thiol groups in proteins into their S-cyano derivatives[1][2].
Biological Activity
2-nitro-5-thiocyanatobenzoic acid (NTCB) is commonly used to cyanylate and cleave proteins at cysteine residues.
References
[1] Qiao Y, et al. Site-Specific Conversion of Cysteine in a Protein to Dehydroalanine Using 2-Nitro-5-thiocyanatobenzoic Acid. Molecules. 2021;26(9):2619. Published 2021 Apr 29. DOI:
10.3390/molecules26092619[2] Price NC. Alternative products in the reaction of 2-nitro-5-thiocyanatobenzoic acid with thiol groups. Biochem J. 1976;159(1):177-180. DOI:
10.1042/bj1590177