5(6)-TAMRA SE (full name: 5-(and-6)-Carboxytetramethylrhodamine succinimidyl ester (mixed isomers)) is the amine reactive form of TAMRA, one of the most commonly used red fluorescent dyes. The succinimidyl ester reacts readily with primary or secondary amines under mild conditions.        &lamba;Ex/&lamba;Em (MeOH) = 540/565 nm    ε = 95,000    Red solid soluble in DMF or DMSO    Store at -20°C and protect from light    C29H25N3O7    MW: 527.5    [150408-83-6]