TechnoDye 498/505

Cat. # Quantity Price Lead time
756-25mg 25 mg $200 in stock
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TechnoDye 498/505 is a water soluble fluorophore. Its absorption and emission spectra are similar to fluorescein, but it is fluorescent in acidic media, and it is much more stable against photobleaching and oxidation.

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General properties

Appearance: orange solid
Molecular weight: 452.18
CAS number: 105237-27-2
Molecular formula: C13H13BF2N2Na2O6S2
IUPAC name: 4,4-Difluoro-1,3,5,7-tetramethyl-4H-3a,4a-diaza-4-bora-s-indacen-3a-ium-4-uid-2,6-disulfonate
Solubility: very good in water, DMF, DMSO
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: 498
ε, L⋅mol−1⋅cm−1: 80000
Emission maximum, nm: 505
Fluorescence quantum yield: 1.00
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