CPN™ 840 (IR-I)

(COOH, Maleimide, Alkyne, Streptavidin versions available)

CPN™ 840 (IR-I) has ex/em maxima of 630⁄840 which means it is compatible with instruments with 610nm and 637nm laser excitation. CPN™ 840 (IR-I) can be readily combined with additional CPNs to label multiple cellular proteins or biological sample components within the same mixture with minimal spectral overlap.

All CPNs™ come PEGylated as standard. CPNs™ are available with a number of surface chemistries including a carboxyl surface, maleimide and alkyne (click chemistry), to fit desired linkage preferences. CPNs™ are also available linked to streptavidin to bind biotinylated molecules.

Download linkage protocols here, or find out more about our bespoke linkage services here. To find out more or discuss a particular project please contact us here.

For the full list of our CPN™ range, click here.


CPN conjugation kits for antibodies and oligonucleotides.
Rapid conjugation of antibodies and oligonucleotides to CPNs can be achieved using our LINKBRIGHTTM amine kits (30 mins) or our LINKBRIGHTTM thiol kits (60 mins). Click here for more details.

CPN ex/em CPN ex/em
CPN 420 (Violet) 390/420 CPN 610 (Orange) 480/610
CPN 435 (Indigo) 390/435 CPN 660 (Red) 540/660
CPN 475 (Blue) 390/475 CPN 680 (Red) 400/680
CPN 510A (Green) 455/510 CPN 770 (IR-I) 610/770
CPN 510B (Green) 400/510 CPN 820 (IR-I) 640/820
CPN 530 (Green) 455/530 CPN 830 (IR-I) 610/830
CPN 550 (Yellow) 470/550 CPN 840 (IR-I) 630/840
CPN 580 (Orange) 488/580 CPN 1000 (IR-II) 750/1000