QSY 21 NHS, CAS 304014-13-9

Exclusive Spring Savings: Up to 20% on selected MCE Products: Screening Libraries (20% off); Recombinant Proteins, MCE Kits, Antibodies, Dyes (15% off); Reference Standard Compounds, siRNA Products (10% off); Bulk Sizes & Custom Synthesis (10% off); PLUS: Get a free Signal Pathway poster with every order! These special prices are already discounted – no additional discounts can be applied during the promotion period. Hurry – this limited-time offer ends May 31, 2025!

Product Description: QSY 21 NHS, a dark quencher is an efficient energy transfer acceptor of the far red and NIR fluorescent probes. QSY 21 NHS works inthe wavelength range of 540-750 nm, and is frequently used in FRET applications. QSY 21 NHS does not emit fluorescence in normal conditions. NHS esters can be used to label the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules[1].

Formula: C45H39ClN4O7S

References: [1]Kabelác M, et al. A comparative study of the binding of QSY 21 and Rhodamine 6G fluorescence probes to DNA: structure and dynamics. Phys Chem Chem Phys. 2010 Sep 7;12(33):9677-84.

CAS Number: 304014-13-9

Molecular Weight: 815.33

Compound Purity: 95.0

Research Area: Others

Target: Fluorescent Dye

• SKU: MEXHY-D2365-10
• Manufacturer: MedChemExpress
• Manufacturer SKU: HY-D2365-10
• Package Unit: 10 mg
• Quantity Unit: STK