CPN™ 420 (Violet)

(COOH, Maleimide, Alkyne, Streptavidin versions available)

CPN™ 420 (Violet) has ex/em maxima of 390420 which means it is compatible with instruments with 405, 375 or 355 nm laser excitation or standard filter sets such as those for DAPI. CPN™ 420 (Violet) 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 680 (Red) 400/680
CPN 475 (Blue) 390/475 CPN 770 (IR-I) 610/770
CPN 510A (Green) 455/510 CPN 820 (IR-I) 640/820
CPN 510B (Green) 400/510  CPN 840 (IR-I) 630/840
CPN 550 (Yellow) 470/550 CPN 1000 (IR-II) 750/1000
CPN 580 (Orange) 488/580