Product number: TF-0113

5-Iodoacetamidofluorescein (5-IAAF)

Thiol-reactive fluorescein derivative for fluorescence derivatization, especially for labeling of cysteines and thiol-modified oligos.

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CAS-Number:	63368-54-7
Molecular Weight:	538,27
Empirical Formula:	C₂₄H₁₃NO₆I
Absorption [nm]:	492 ± 3
Emission [nm]:	513 ± 3
ε [M-1 cm-1]:	>70 000
Buffer System for Fluorescence Readings:	T&S Buffer, pH 9
Solubility:	DMF
Appearance (colour):	yellow
Appearance (form):	solid (powder)
Storage:	- 20 °C. Keep dry! Keep away from light, especially in solution!
Name:	2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)-5-(2-iodo-acetylamino)-benzoic acid
Trade name:	5-Iodoacetamidofluorescein, 5-IAAF
Reactive Moiety:	Iodoacetamide, reacts with thiol to form a stable thioether linkage

Readily reacts with the thiol group found on cysteine or with thiol-modified oligonucleotides to form a stable carbon-sulfur bond.

11 - Flammable solids

WGK 3

Not dangerous goods

Not dangerous goods

Not dangerous goods

11 - Entzündbare Feststoffe

WGK 3

Kein Gefahrgut

Kein Gefahrgut

Kein Gefahrgut