ROX carboxylic acid, 6-isomer

Cat. # Quantity Price Lead time
22290 5 mg $115 in stock
42290 25 mg $319 $239 in stock
62290 100 mg $512 in stock
82290 1 g $1850 in stock
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ROX (Rhodamine X, Rhodamine 101) is a red-emitting fluorophore possessing high brightness and fluorescence quantum yield. This reagent is a pure 6-isomer.

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

Absorption and emission spectra of ROX

Absorption and emission spectra of ROX

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Azide derivative of ROX (Rhodamine X, Rhodamine 101) dye for biomolecule labeling via click chemistry. Pure 5-isomer.

ATT 550 carboxylic acid

Derivative of АТТ 550 fluorophore with non-activated free carboxylic acid group.
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General properties

Appearance: dark crystals
Molecular weight: 534.61
Molecular formula: C33H30N2O5
Solubility: good in DMSO, DMF, methanol, ethanol
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. Avoid prolonged exposure to light.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 570
ε, L⋅mol−1⋅cm−1: 93000
Emission maximum, nm: 591
Fluorescence quantum yield: 1.0
CF260: 0.62
CF280: 0.49
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