Fluorescein labeling

Fluorescein labeling

Fluorescein (FAM) is a xanthene universal dye for various applications, compatible with most of existing instruments. It can be used as quantum yield standard and is replaceable with Alexa Fluor 488, DyLight 488.
Product Number
Product Name
Structure
M.W.
Purity
Fluorescein-PEG4-Acid
654.7
96%
Fluorescein-PEG5-Acid
698.8
98%
Fluorescein-PEG6-Acid
742.8
96%
 
 
FAM NHS ester, 6-isomer
473.4
98%
 
Fluorescein-PEG5-NHS ester
795.8
95%
Fluorescein-PEG6-NHS ester
839.9
95%
 
Carboxyfluorescein-PEG12-NHS
1073.1
96%
 
Fluorescein-PEG6-bis-NHS ester
939.0
95%
 
 
FAM amine, 5-isomer
511.0
95%
FAM amine, 6-isomer
511.0
95%
 
Fluorescein-PEG3-Amine
581.6
96%
 
Fluorescein-PEG3-(N-Boc)-Amine
681.8
96%
 
 
FAM alkyne, 5-isomer
413.4
95%
FAM alkyne, 6-isomer
413.4
96%
 
 
FAM azide, 5-isomer
458.4
96%
FAM azide, 6-isomer
458.4
96%
 
Fluorescein-PEG2-azide
563.6
96%
Fluorescein-PEG4-azide
651.7
95%
 
 
Fluorescein-DBCO
665.7
95%
 
 
Fluorescein-Maleimide
529.5
95%
 
 
FAM hydrazide, 5-isomer
426.8
95%
FAM hydrazide, 6-isomer
426.8
95%