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Texas Red-X, acid *CAS 199745-67-0*

Compared to Texas Red®, Texas Red-X dye that contains an additional seven-atom aminohexanoyl spacer ("X") between the fluorophore and the carboxy group. This spacer helps to separate the fluorophore from its point of attachment, potentially reducing the interaction of the fluorophore with the biomolecule to which it is conjugated. This product is a single 5-isomer, giving more reproducible results. It has the same spectral properties to Texas Red, and can be used to create bright red-fluorescent bioconjugates with excitation/emission maxima ~595/615 nm (Texas Red® is the trademark of ThermoFisher).
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Physical properties
Molecular weight719.87
SolventDMF
Spectral properties
Extinction coefficient (cm -1 M -1)116000
Excitation (nm)595
Emission (nm)613
Quantum yield0.971, 0.932
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12171501
CAS199745-67-0
Spectrum
References
View all 50 references: Citation Explorer
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Novel aptasensor-based assay of sonic hedgehog ligand for detection of portal vein invasion of hepatocellular carcinoma.
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Detection of Tumor-Specific PTPmu in Gynecological Cancer and Patient Derived Xenografts.
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Journal: Diagnostics (Basel, Switzerland) (2021)