logo
AAT Bioquest

QXY7 acid [equivalent to QSY-7 acid]

QXY7 is the same molecule to QSY-7 acid (ThermoFisher). QXY7 has a broad and intense absorption at ~550 nm maxima with no detectable fluorescence, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications paring with Cy3, TAMRA, Alexa Fluor 555, iFluor 647 or other spectrally similar fluorescent dyes.

Spectrum

References

View all 14 references: Citation Explorer
Structural exploration and Förster theory modeling for the interpretation of gas-phase FRET measurements: Chromophore-grafted amyloid-β peptides.
Authors: Kulesza, Alexander and Daly, Steven and MacAleese, Luke and Antoine, Rodolphe and Dugourd, Philippe
Journal: The Journal of chemical physics (2015): 025101
Action-FRET: probing the molecular conformation of mass-selected gas-phase peptides with Förster resonance energy transfer detected by acceptor-specific fragmentation.
Authors: Daly, Steven and Poussigue, Frédéric and Simon, Anne-Laure and MacAleese, Luke and Bertorelle, Franck and Chirot, Fabien and Antoine, Rodolphe and Dugourd, Philippe
Journal: Analytical chemistry (2014): 8798-804
A time-resolved, internally quenched fluorescence assay to characterize inhibition of hepatitis C virus nonstructural protein 3-4A protease at low enzyme concentrations.
Authors: Mao, Shi-Shan and DiMuzio, Jillian and McHale, Carolyn and Burlein, Christine and Olsen, David and Carroll, Steven S
Journal: Analytical biochemistry (2008): 1-8
Fluorescence-based sensing of glucose using engineered glucose/galactose-binding protein: a comparison of fluorescence resonance energy transfer and environmentally sensitive dye labelling strategies.
Authors: Khan, Faaizah and Gnudi, Luigi and Pickup, John C
Journal: Biochemical and biophysical research communications (2008): 102-6
Longer wavelength fluorescence resonance energy transfer depsipeptide substrates for hepatitis C virus NS3 protease.
Authors: Konstantinidis, Alex K and Richardson, Paul L and Kurtz, Kevin A and Tripathi, Rakesh and Chen, Chih-Ming and Huang, Peggy and Randolph, John and Towne, Danli and Donnelly, Jennifer and Warrior, Usha and Middleton, Tim and Kati, Warren M
Journal: Analytical biochemistry (2007): 156-67
Page updated on March 11, 2025

Ordering information

Price
Unit size
Catalog Number2037
Quantity
Add to cart

Additional ordering information

Telephone1-800-990-8053
Fax1-800-609-2943
Emailsales@aatbio.com
InternationalSee distributors
Bulk requestInquire
Custom sizeInquire
Technical SupportContact us
Purchase orderSend to sales@aatbio.com
ShippingStandard overnight for United States, inquire for international
Request quotation

Physical properties

Molecular weight

771.81

Solvent

DMSO

Spectral properties

Absorbance (nm)

561

Correction Factor (280 nm)

0.22

Extinction coefficient (cm -1 M -1)

900001

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501
Product Image
Product Image
Gallery Image 1

We use cookies to enhance your browser experience and analyze our traffic. By clicking "Accept All", you consent to our use of cookies.

Accept All
Customize
Reject All