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Difluorocarboxyfluorescein Cadaverine, 5-isomer

Catalog#
Unit Size
Price (USD)
Availability
Qty
Cat.#: 1227-5
Unit size: 5 mg
$179.00
in stock
Cat.#: 1227-25
Unit size: 25 mg
$395.00
in stock
Cat.#: 1227-100
Unit size: 100 mg
$1,295.00
in stock

Difluorocarboxyfluorescein Cadaverine, 5-isomer (sold under Oregon Green™ 488 Cadaverine, 5-isomer name) is a carbonyl reactive building block used to modify carboxylic groups in the presence of activators (e.g. EDC, or DCC) or activated esters (e.g. NHS esters) through a stable amide bond. It also can be employed as a polar tracer and as a reactive dye for labeling proteins via a carboxylic acid moiety.

Difluorocarboxyfluorescein Cadaverineis a fluorinated analog of fluorescein that overcomes some of the key limitations of fluorescein, including greater photostability and a lower pKa (pKa ~ 4.7 versus 6.4 for fluorescein), making its fluorescence essentially pH insensitive in the physiological pH range.

Difluorocarboxyfluorescein Cadaverine, 5-isomer structurally is identical to Invitrogen’s Oregon Green™ 488 Cadaverine, 5-isomer

Reactivity
Aldehyde, carboxylic acid, ketone
Abs/Em Maxima
494/517 nm
Extinction coefficient
73,000 cm-1M-1
Solubility
DMSO, DMF, MeOH
Spectrally similar dyes
Alexa Fluor® 488, DyLight® 488, Fluorescein, Oregon Green 488
Molecular weight
496.46
Storage conditions
-20C
Shipping conditions
Ambient temperature

spectrum