Cyanine 5.5 NHS ester [Analog to Cy5.5(R) NHS ester]

Cyanine 5.5 NHS ester is a reactive dye designed for labeling amino groups in peptides, proteins, and oligonucleotides, functioning as an analog of Cy5.5(R) NHS ester. Cy5.5 emits in the far-red to near-infrared range, making it an excellent choice for fluorescence measurements where reducing background fluorescence is essential. It is also highly suitable for in vivo near-infrared (NIR) imaging applications. This reagent serves as a reliable replacement for NHS esters of Cy5.5(R) and DyLight 680. Chemical Properties Storage Upon receipt, store at -20°C in the dark. Protect from light and moisture. When stored as indicated, Cyanine 5.5 NHS ester is stable for at least 1 year. This product is for Research Use Only· Not for Human or Veterinary or Therapeutic Use CAS number NA Formula C45H48ClN3O4 Molecular Weight 730.35 HPLC Purity >95% lambdaabs (nm) 684 epsilonmax (M-1 cm-1) 1.98x10^5 lambdafl (nm) 710 CF260 =epsilon260/epsilonmax NA CF280 =epsilon280/epsilonmax