5(6)-TAMRA N-succinimidyl ester

Dark brown powder. Soluble in DMSO, DMF, acetonitrile or methanol. Chemical. CAS: 150408-83-6, 246256-50-8. Formula: C29H25N3O7. MW: 527.52. Synthetic. Amine-reactive form of 5(6)-carboxytetramethylrhodamine. Conjugates yield bright, pH-insensitive orange-red fluorescence (Ex/Em: ~543/576nm i MeOH) with good photostability. Fluorophores most often used for preparing peptide, protein, nucleotide and nucleic acid conjugates or other primary amine-containing molecules. Especially also used for fluorescent antibodies and avidin derivatives used in immunochemistry.