Labeling Chemistry Selection Tool

Welcome to the Labeling Chemistry Selection Tool featuring Molecular Probes® reagents and labeling technologies! Quickly find the best reactive dye or label for your experiment. Whether you are labeling proteins and antibodies for immunofluorescence, nucleic acids for in situ hybridization, or lipids for membrane studies, this tool will help you find the right conjugation product.

Here are a few definitions to help you get started:

Reactivity - this filter refers to the chemical group on the molecule you want to label (i.e. your antibody, protein or DNA)

Reactive Moiety - this filter refers to the chemical group on the dye or label you want to attach to your molecule (i.e fluorescein isothiocyanate, Alexa Fluor® 488 malemide)

32 Products Returned

  Product name
  Fluorophore/Label
  Excitation
  Emission
  Extinction Coefficient
  Cat #
  Size List Price (USD) Qty
Alexa Fluor® 350 Protein Labeling Kit Alexa Fluor 350 346 nm 442 nm 19,000 cm-1M-1 A10170 1 kit 394.00
Alexa Fluor® 430 Protein Labeling Kit Alexa Fluor 430 433nm 539 nm 15,000 cm-1M-1 A10171 1 kit 472.00
Alexa Fluor® 488 Microscale Protein Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A30006 1 kit 411.00
Alexa Fluor® 488 Protein Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A10235 1 kit 394.00
Alexa Fluor® 532 Protein Labeling Kit Alexa Fluor 532 530 nm 555 nm 81,000 cm-1M-1 A10236 1 kit 423.00
Alexa Fluor® 546 Protein Labeling Kit Alexa Fluor 546 554 nm 570 nm 112,000 cm-1M-1 A10237 1 kit 394.00
Alexa Fluor® 555 Microscale Protein Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A30007 1 kit 411.00
Alexa Fluor® 555 Protein Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A20174 1 kit 394.00
Alexa Fluor® 568 Protein Labeling Kit Alexa Fluor 568 578 nm 603 nm 88,000 cm-1M-1 A10238 1 kit 394.00
Alexa Fluor® 594 Microscale Protein Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A30008 1 kit 411.00
Alexa Fluor® 594 Protein Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A10239 1 kit 394.00
Alexa Fluor® 633 Protein Labeling Kit Alexa Fluor 633 621 nm 639 nm 159,000 cm-1M-1 A20170 1 kit 394.00
Alexa Fluor® 647 Microscale Protein Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A30009 1 kit 411.00
Alexa Fluor® 647 Protein Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A20173 1 kit 394.00
Alexa Fluor® 660 Protein Labeling Kit Alexa Fluor 660 663 nm 690 nm 132,000 cm-1M-1 A20171 1 kit 394.00
Alexa Fluor® 680 Protein Labeling Kit Alexa Fluor 680 684 nm 707 nm 183,000 cm-1M-1 A20172 1 kit 394.00
Biotin-XX Microscale Protein Labeling Kit Biotin-XX B30010 1 kit 358.00
Biotin-XX Microscale Protein Labeling Kit with FluoReporter® Biotin Quantitation Assay Kit Biotin-XX B30756 1 kit 425.00
DSB-X™ Biotin Protein Labeling Kit DSB-X Biotin D20655 1 kit 387.00
FluoReporter® Biotin-XX Protein Labeling Kit Biotin-XX F2610 1 kit Contact Us
FluoReporter® Biotin/DNP Protein Labeling Kit Biotin and DNP F6348 1 kit Contact Us
FluoReporter® FITC Protein Labeling Kit *5-10 labelings* Fluorescein 494 nm 518 nm 77,000 cm-1M-1 F6434 1 kit 373.00
FluoReporter® Fluorescein-EX Protein Labeling Kit Fluorescein 494 nm 518 nm 79,000 cm-1M-1 F6433 1 kit Contact Us
FluoReporter® Mini-biotin-XX Protein Labeling Kit Biotin-XX F6347 1 kit 339.00
FluoReporter® Oregon Green® 488 Protein Labeling Kit Oregon Green 488 506 nm 526 nm 85,000 cm-1M-1 F6153 1 kit Contact Us
FluoReporter® Rhodamine Red™-X Protein Labeling Kit Rhodamine Red 560 nm 580 nm 129,000 cm-1M-1 F6161 1 kit Contact Us
FluoReporter® Texas Red®-X Protein Labeling Kit Texas Red 587 nm 602 nm 96,000 cm-1M-1 F6162 1 kit Contact Us
Fluorescein-EX Protein Labeling Kit Fluorescein 494 nm 519 nm 74,000 cm-1M-1 F10240 1 kit 369.00
Oregon Green® 488 Protein Labeling Kit Oregon Green 488 506 nm 526 nm 85,000 cm-1M-1 O10241 1 kit 365.00
Pacific Blue™ Protein Labeling Kit Pacific Blue 410 nm 455 nm 46,000 cm-1M-1 P30012 1 kit 420.00
Pacific Orange™ Protein Labeling Kit Pacific Orange 404 nm 553 nm 25,000 cm-1M-1 P30016 1 kit 440.00
Texas Red®-X Protein Labeling Kit Texas Red 587 nm 602 nm 96,000 cm-1M-1 T10244 1 kit 365.00