TR-X-carboxylic acid, 5-isomer

Cat. # Quantity Price Lead time
1V290 1 mg $110 in stock
3V290 10 mg $205 in stock
6V290 100 mg $1290 in stock
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TR is a sulfonated analog of ROX dye with similar spectral properties and emission in the red region of the spectrum. This derivative is a dye with an aminohexanoic acid linker that provides spacing between the fluorophore and the biomolecule to prevent undesired interactions.

TR carboxylic acid is a non-reactive form of TR dye that can be used as a reference standard in experiments involving TR dye conjugates. Besides, the carboxylic group can react with hydrazines, hydroxylamines, and amines after activation by carbodiimides such as EDAC.

Absorption and emission spectra of TR

Absorption and emission spectra of TR

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General properties

Appearance: dark crystals
Molecular weight: 719.88
CAS number: 199745-67-0
Molecular formula: C37H41N3O8S2
Solubility: good in polar organic solvents
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 582
ε, L⋅mol−1⋅cm−1: 98000
Emission maximum, nm: 600
Fluorescence quantum yield: 0.79
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