Cy5-DBCO

• CAT Number: I015639
• CAS Number: 1564286-24-3
• Molecular Formula: C52H56N4O11S3
• Molecular Weight: 1009.22
• Purity: ≥95%
• Synonyms: 3-[2-[(1E,3E,5Z)-5-[1-[6-[[3-(2-azatricyclo[10.4.0.04,9]hexadeca-1(16),4,6,8,12,14-hexaen-10-yn-2-yl)-3-oxopropyl]amino]-6-oxohexyl]-3,3-dimethyl-5-sulfoindol-2-ylidene]penta-1,3-dienyl]-3,3-dimethyl-5-sulfoindol-1-ium-1-yl]propane-1-sulfonate
• InChI: InChI=1S/C52H56N4O11S3/c1-51(2)42-34-40(69(62,63)64)25-27-45(42)54(31-14-6-9-22-49(57)53-30-29-50(58)56-36-39-18-11-10-16-37(39)23-24-38-17-12-13-19-44(38)56)47(51)20-7-5-8-21-48-52(3,4)43-35-41(70(65,66)67)26-28-46(43)55(48)32-15-33-68(59,60)61/h5,7-8,10-13,16-21,25-28,34-35H,6,9,14-15,22,29-33,36H2,1-4H3,(H3-,53,57,59,60,61,62,63,64,65,66,67)
• InChIKey: LQHUKJFMCCLWEL-UHFFFAOYSA-N
• SMILES: CC1(C2=C(C=CC(=C2)S(=O)(=O)O)[N+](=C1C=CC=CC=C3C(C4=C(N3CCCCCC(=O)NCCC(=O)N5CC6=CC=CC=C6C#CC7=CC=CC=C75)C=CC(=C4)S(=O)(=O)O)(C)C)CCCS(=O)(=O)[O-])C

Cy5-DBCO (DBCO-Sulfo-Cy5) is a near-infrared (NIR)red fluorescent dye with λabsand λem of 646nm and 670 nm, respectively. Cy5-DBCO (DBCO-Sulfo-Cy5) is not suitable for staining intracellular components of permeabilezed cell, it may exhibits a high background. Cy5-DBCO is a click chemistry reagent, it contains a DBCO group that can undergo strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups.
Cy5-DBCO (DBCO-Sulfo-Cy5) reacts with azides via a copper-free “click chemistry” reaction and forms a stable triazole and does not need Cu-catalyst or elevated temperatures.