TNBS (2,4,6-trinitrobenzene sulfonic acid) is a highly sensitive and rapid chemical used to quantitate the free amino groups. The reaction of TNBS with primary amines generates a highly chromogenic product that can be readily measured at 335nm. Supplied as a 1% solution in methanol. …

Features Chemical Name: 2-Iminothiolane hydrochloride Molecular weight: 137.63 Mild conditions: pH 7-10, 25°C Soluble in water Applications For the addition of sulfhydryls to primary amines For the preparation of disulfide bridges or generation of sulfhydryl…

(5/6) TAMRA-SE (5-(and -6)-Carboxytetramethylrhodamine succinimidyl ester, mixed isomers) is based on tetramethylrhodamine, one of the most common fluorophores used in the labeling of peptides, proteins, nucleic acids and nucleotides. (5/6) TAMRA absorbs green visible light at 546nm and emits an…