A sulfonated Cy5 fluorescent dye with a carboxylic acid group for fluorescent conjugate synthesis and biomolecular labeling research.
Energybiopharma Sulfo-Cy5 Carboxylic Acid (ENG-CY003), listed by the manufacturer as Sulfo-Cy5, is a cyanine fluorescent dye for developing fluorescent probes and biomolecular conjugates.
Its carboxylic acid group provides a functional handle for conjugation through suitable activation and coupling chemistry. This product is the carboxylic acid form, so labeling workflows should use chemistry appropriate to this form rather than protocols designed for a preactivated NHS ester. The manufacturer reports excitation and emission wavelengths of 633/670 nm.
Brand: Energybiopharma
Catalog number: ENG-CY003
Product type: Cyanine fluorescent dye, carboxylic acid form
CAS number: 146368-11-8
Molecular formula: C33H40N2O8S2
Molecular weight: 656.81 g/mol
Purity: 98%
Excitation/emission wavelengths: 633/670 nm
Available sizes: 5 mg, 25 mg, 100 mg and 1 g
Storage: 2–8°C, protected from light and under an inert atmosphere
Applications: Fluorescent conjugate synthesis, biomolecular labeling development and fluorescence analysis
Research use only: Not for diagnostic procedures
Original product link: Energybiopharma Sulfo-Cy5
