CA Index Name: Xanthylium, 3,6-bis(2,3-dihydro-1H-indol-1-yl)-9-[2-[[4-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-1-piperidinyl]sulfonyl]phenyl]-, chloride (1:1)
Other Names: Xanthylium, 3,6-bis(2,3-dihydro-1H-indol-1-yl)-9-[2-[[4-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-1-piperidinyl]sulfonyl]phenyl]-, chloride; QSY 21; QSY 21 carboxylic acid succinimidyl ester; QSY 21NHS
Merck Index Number: Not listed
Chemical / Dye Class: Xanthene
Molecular Formula: C45H39ClN4O7S
Molecular Weight: 815.34
Physical Form: Solid
Solubility: Soluble in dimethyl sulfoxide, methanol
Melting Point: > 200 °C
Absorption (λmax): 661 nm
Synthesis: Synthetic methods
Staining Applications: Nucleic acids; cells; oligonucleotides; G-proteins; cysteine protease; tumors
Biological Applications: Amplification assays; hybridization assays; litigation assays; ligand assays; detecting analytes, enzymes, optical microcavities, protein-DNA interactions; imaging apoptosis, b-lactamase activity; FRET probes
Industrial Applications: Not reported
Safety / Toxicity: No data available