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Texas Red® maleimide
Single Isomer
Texas Red® maleimide is an excellent thiol-reactive fluorescent reagent for labeling thiol-containing biological molecules (such as peptides, proteins and thiol-modified oligonucleotides). It selectively reacts with thiol groups of peptides, proteins and other biological molecules (such as small thiol-containing organic molecules). It has the spectral properties identical to those of Texas Red conjugates, thus all the instrument settings of the Texas Red conjugates would be applicable to the applications of TR C2 maleimide conjugates.
Chemical structure for Texas Red® maleimide *Single Isomer*
Chemical structure for Texas Red® maleimide *Single Isomer*
CatalogSize
Price
Quantity
4835 mg
Price
 
Physical properties

Molecular weight728.83
SolventDMSO
Spectral properties

Correction factor (260 nm)0.23
Correction factor (280 nm)0.36
Correction factor (565 nm)0.4472
Extinction coefficient (cm -1 M -1)
116000
1
Excitation (nm)586
Emission (nm)603
Quantum yield
0.97
1
0.93
2
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
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Page updated on September 30, 2025