5-TAMRA cadaverine

5-TAMRA cadaverine is the purified single isomer of 5(6)-TAMRA cadaverine mixture. It is preferred for some complicated biological applications where reproducibility is more critical than material cost since the minor positional difference between 5-isomer and 6-isomer might have biological implications. Cadaverine allows conjugating the dye to proteins or soluble biomolecules containing carboxylic acid, aldehyde or ketone groups.