Texas Red-X, acid *CAS 199745-67-0*
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Physical properties
Molecular weight | 719.87 |
Solvent | DMF |
Spectral properties
Extinction coefficient (cm -1 M -1) | 116000 |
Excitation (nm) | 550 |
Emission (nm) | 613 |
Quantum yield | 0.971, 0.932 |
Storage, safety and handling
H-phrase | H303, H313, H333 |
Hazard symbol | XN |
Intended use | Research Use Only (RUO) |
R-phrase | R20, R21, R22 |
Storage | Freeze (< -15 °C); Minimize light exposure |
UNSPSC | 12171501 |
Related products
Overview | ![]() ![]() |
CAS 199745-67-0 | Molecular weight 719.87 | Extinction coefficient (cm -1 M -1) 116000 | Excitation (nm) 550 | Emission (nm) 613 | Quantum yield 0.971, 0.932 |
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).
Calculators
Common stock solution preparation
Table 1. Volume of DMF needed to reconstitute specific mass of Texas Red-X, acid *CAS 199745-67-0* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.
0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
1 mM | 138.914 µL | 694.57 µL | 1.389 mL | 6.946 mL | 13.891 mL |
5 mM | 27.783 µL | 138.914 µL | 277.828 µL | 1.389 mL | 2.778 mL |
10 mM | 13.891 µL | 69.457 µL | 138.914 µL | 694.57 µL | 1.389 mL |
Molarity calculator
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Spectrum
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Spectral properties
Extinction coefficient (cm -1 M -1) | 116000 |
Excitation (nm) | 550 |
Emission (nm) | 613 |
Quantum yield | 0.971, 0.932 |
References
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Authors: Vincent, Jason and Craig, Sonya E L and Johansen, Mette L and Narla, Jyosthna and Avril, Stefanie and DiFeo, Analisa and Brady-Kalnay, Susann M
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Acoustic Poration and Dynamic Healing of Mammalian Cell Membranes during Inkjet Printing.
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