Description

TurboTag 709 Protein Labeling Kit for Near-Infrared DY-700 Conjugation

TurboTag 709 from emp BIOTECH is a complete protein labeling and purification kit optimized for covalent conjugation of proteins ≥ 25 kDa using the near-infrared fluorophore DY-700. The kit utilizes a reactive NHS ester of DY-700 for site-specific labeling of primary amines, forming stable amide linkages. The resulting protein-dye conjugates exhibit strong near-infrared fluorescence with excitation/emission maxima at 709 nm and 737 nm, ideal for high-sensitivity detection in imaging, diagnostics, and molecular biology workflows.

Each vial contains 50 nmol of reactive dye, sufficient to label up to 15 nmol of protein. TurboTag 709 is compatible with emp BIOTECH’s optimized IgG labeling protocols for 1 mg and 100 µg samples, enabling fast and reproducible results.

Performance Highlights

• Efficient labeling of antibodies and other proteins ≥ 25 kDa

• Strong fluorescence in the near-infrared range (excitation/emission at 709/737 nm)

• NHS ester chemistry for covalent labeling through stable amide bond formation

• Pre-optimized for labeling 1 mg or 100 µg of IgG

• Ideal for protein tracking, NIR imaging, and sensitive immunodetection applications

Properties

• Molecular Weight: 765.93

• Empirical Formula: C₄₃H₄₇N₃O₈S

• Absorption [λmax]: 707 ± 3 nm

• Emission [λmax]: 730 ± 3 nm

• Extinction Coefficient (ε): 140,000 M⁻¹·cm⁻¹

• Reactive Moiety: NHS ester (reacts with primary amines to form stable amide linkage)

• Storage: −20 °C, dry, protected from light

• Labeling Capacity: Up to 15 nmol protein per 50 nmol dye vial

Applications

• Fluorescent labeling of antibodies and high-MW proteins

• Near-infrared fluorescence imaging and biomarker tracking

• Immunoassays, diagnostics, and molecular detection

• Signal amplification in low-background NIR platforms

• In vivo imaging and multiplex analysis

Why Choose TurboTag™ 709?

TurboTag 709 delivers high-efficiency fluorescent labeling using DY-700, a near-infrared fluorophore optimized for low-background detection and deep tissue imaging. Its NHS ester chemistry ensures reliable covalent conjugation to proteins with minimal protocol complexity. With strong absorption at 707 nm and emission at 730 nm, this kit provides excellent performance for sensitive immunodetection and imaging workflows. Pre-optimized labeling instructions ensure fast and reproducible results across a wide range of protein applications.