Labelling

N-(m-PEG4)-N'-(hydroxy-PEG2)-Cy5 is a cyanine labeled PEG linker with excitation/emmission maximum 649/667 nm containing hydroxyl group, which enables further derivatized or replaced with other reactive functional groups. Hydophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG4)-N'-(azide-PEG3)-Cy5 is a PEG linker containing a cyanine dye with excitation/emmission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG4)-N'-(PEG2-acid)-Cy5 is a PEG linker containing a cyanine dye with excitation/emmission maximum 649/667 nm and a free terminal carboxyl acid. Terminal carboxylic acid can react with primary amine groups in the presence of of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG4)-N'-(PEG2-NHS ester)-Cy5 is a cyanine labeled PEG linker with excitation/emmission maximum 649/667 nm containing a NHS ester group, which is an amine reactive group. Hydophilic PEG spacer increases solubility in aqueous media. This reagent can be utilized to produce Cyanine-labeled biomolecules for subsequent use such as in vivo research, and drug design related experiments. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5 is a PEG linker containing a cyanine dye with excitation/emmission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG4)-N'-(amino-PEG3)-Cy5 TFA salt is a PEG linker containing a cyanine dye with excitation/emmission maximum 649/667 nm and a free amine group, which will be reactive with cabroxylic acid, activated NHS ester, carbonyl (ketone, aldehyde) etc. The hydophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG9)-N'-(propargyl-PEG9)-Cy5 is a cyanine linker with excitation/emmission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-(m-PEG9)-N'-(PEG5-acid)-Cy5 is a near infrared (NIR) fluorescent Cy 5 labeled PEG linker containing free terminal carboxyl acid. Terminal carboxylic acid can react with primary amine groups in the presence of of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydophilic PEG spacer increases solubility in aqueous media. Cy5 labeled PEG linker can be easily traced from its blue color and strong fluorescence. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

N-methyl-N'-(hydroxy-PEG2)-Cy5 is a cyanine labeled PEG linker with excitation/emmission maximum 649/667 nm containing hydroxyl group, which enables further derivatized or replaced with other reactive functional groups. Hydophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.