N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7 is a Cy7 labeled near infrared fluorescent (NIF) PEG derivative containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. This reagent can be utilized to produce Cy7-labeled biomolecules for potential in vivo research and drug design related experiments.

N-(m-PEG4)-N'-(PEG3-Mal)-Cy5 is a PEG derivative containing a fluorescent cyanine group.

N-(m-PEG4)-N'-(4-hydroxycyclohexyl-1-amido-PEG4)-Cy5 is a cyanine labeled PEG derivative with excitation/emission maximum 649/667 nm containing a hydroxyl group, which enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.

N-(m-PEG4)-N'-hydroxypropyl-Cy5 is a cyanine labeled PEG derivative with excitation/emission maximum 649/667 nm containing a hydroxyl group, which enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.

N-(m-PEG4)-N'-(hydroxy-PEG2)-Cy5 is a cyanine labeled PEG derivative with excitation/emission maximum 649/667 nm containing a hydroxyl group. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.

N-methyl-N'-(hydroxy-PEG2)-Cy5 is a cyanine labeled PEG derivative with excitation/emission maximum 649/667 nm containing a hydroxyl group. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.

N-(m-PEG4)-N'-(DBCO-PEG4)-Cy5 is a Cy5 labeled fluorescent PEG derivative containing a DBCO group which reacts with azide-bearing compounds or biomolecules to form a stable triazole linkage without a copper catalyst. DBCO-activated fluorescein dye will be an ideal alternative to copper intolerant applications. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(m-PEG4)-N'-(biotin-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as biotin. Biotin enables efficient protein enrichment. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(m-PEG4)-N'-(Biotin-PEG2-Amido-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as biotin, which enables efficient protein enrichment. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-methyl-N'-methyl-O-(m-PEG4)-O'-(azide-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(azide-PEG3)-N'-(Mal-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(azide-PEG3)-N'-(Amine-C3-PEG4)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(azide-PEG4)-3,3-Dimethyl-3H-indole-N'-(m-PEG3)-Benzothiazole Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-(m-PEG4)-N'-(azide-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.

N-methyl-N'-(Azido-PEG2-C5)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

N,N'-bis-(azide-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission maximum 649/667 nm as well as an azide group, which enables Click Chemistry. The hydophilic PEG spacer increases solubility in aqueous media.

Cy5-PEG5-azide is a Cy5 labeled near infrared fluorescent (NIR) PEG derivative dye (Abs 650 nm/Emi 670 nm) containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. This reagent can be used to label alkyne-bearing molecules or biomolecules with Cy5 dye.

Cy5-PEG3-azide is a Cy5 labeled near infrared fluorescent (NIR) PEG derivative dye containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. This reagent can be used to label alkyne-bearing molecules or biomolecules with Cy5 dye.

Bis-(N,N'-amine-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission 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.

N-(m-PEG4)-N'-(amino-PEG3)-Cy5 is a PEG derivative containing a cyanine dye with excitation/emission 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.

Cy5-PEG5-amine HCl salt is a PEG derivative containing a cyanine dye with excitation/emission 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.

N,N'-bis-(propargyl-PEG4)-Cy5 is a cyanine derivative with excitation/emission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules.

N-(m-PEG4)-N'-(m-PEG4)-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a cyanine derivative with excitation/emission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules.

N-methyl-N'-methyl-O-(m-PEG4)-O'-(propargyl-PEG4)-Cy5 is a cyanine derivative with excitation/emission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules.

N-(hydroxy-PEG2)-N'-(propargyl-PEG4)-Cy5 is a cyanine derivative with excitation/emission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules.

N-methyl-N'-(propargyl-PEG4)-Cy5 is a cyanine derivative with excitation/emission maximum 649/667 nm containing an alkyne group, which enables Click Chemistry to attach deeply colored and photostable Cyanine fluorophore to various molecules.

N-(azide-PEG3)-N'-(PEG4-NHS ester)-Cy5, is a cyanine labeled PEG derivative with excitation/emission 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.

N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5 is a cyanine labeled PEG derivative with excitation/emission 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.