5-CR6G SE

5-CR6G SE is the amine-reactive derivative of 5-CR6G. It is particularly favored in complex biological applications where reproducibility is more critical than material cost, as the minor positional difference between 5-CR6G and 6-CR6G can significantly impact the biological properties of the resulting conjugates. The NHS ester functionality allows 5-CR6G SE to react specifically and efficiently with primary amines, such as the side chain of lysine residues in proteins or aminosilane-coated surfaces, under neutral or slightly basic conditions. This reaction forms a stable covalent bond, making it a valuable tool for labeling and conjugation in biological research. Chemical Properties Storage Upon receipt, store at -20°C in the dark. Protect from light and moisture. When stored as indicated, 5-CR6G SE is stable for at least 1 year. This product is for Research Use Only· Not for Human or Veterinary or Therapeutic Use CAS number 209112-21-0 Formula C31H29N3O7 Molecular Weight 555.59 HPLC Purity >95% lambdaabs (nm) 522 epsilonmax (M-1 cm-1) 9.4x10^4 lambdafl (nm) 546 CF260 =epsilon260/epsilonmax 0.24 CF280 =epsilon280/epsilonmax 0.214