Catalog

Fluorophores and quenchers

Fluorescent oligonucleotides are used in a variety of biochemical and analytical applications, such as DNA sequencing, FISH, qPCRand others. We manufacture a lot of different reagents for the synthesis of fluorescent oligonucleotides. Whether you need to make single, multi or dual labeled probes, we have the fluorophores and quenchers you need.

Fluorophores

For Internal modifications - Quenchers and Fluorophores are incorporated via dT. Contact us, if you were unable to find modifications of your interest.
Fluorophores 5' Int* 3' Emission color λex, nm λem, nm εex, l mol-1 cm-1 Quantum yield
FAM Green 494 520 75000 0.9
R6G Yellow-Green 518 542 116000 0.95
VIC (SIMA) Yellow-Green 531 555 92300 0.63
JOE Yellow-Green 533 554 75000 0.61
HEX Yellow 533 549 87770 0.57
TAMRA Yellow 541 567 84000 0.1
ROX Orange 570 591 93000 1.00
Cy5 Red 646 662 271000 0.2
Cy5.5 Red 684 710 198000 0.2

Extinguishers

*GTQs are full chemical analogues of BHQs ™
For Internal modifications - Quenchers and Fluorophores are incorporated via dT. Contact us, if you were unable to find modifications of your interest.
Extinguishers 5' Int* 3' λmax, nm
Extinguishing range, nm
GTQ1**
534
480-580
GTQ2**
579 550-650
GTQ3**


672 620-730

Recommended Fluorophore Quencher Pairs for Double Labeled qPCR Probes and Molecular Beacons*

*For Internal modifications - Quenchers and Fluorophores are incorporated via dT. Contact us, if you were unable to find modifications of your interest.
Fluorophore Quencher**
FAM

GTQ1
R6G
SIMA
HEX
R6G GTQ2
VIC
JOE
HEX
ROX
Cy5
Cy5.5
Cy5.5 GTQ3
Fluorophores Structures
FAM
R6G
VIC (SIMA)
JOE
HEX
TAMRA
ROX
Cy5
Cy5.5
*GTQs are full chemical analogues of BHQs ™
Fluorophores Structures
GTQ1*
GTQ2*
GTQ3*