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)

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66 Products Returned

   Product name
  Fluorophore/Label
  Excitation
  Emission
  Extinction Coefficient
  Cat #
  Size Qty
APEX™ Alexa Fluor® 488 Antibody Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A10468 1 kit Contact Us
APEX™ Alexa Fluor® 555 Antibody Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A10470 1 kit Contact Us
APEX™ Alexa Fluor® 594 Antibody Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A10474 1 kit Contact Us
APEX™ Alexa Fluor® 647 Antibody Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A10475 1 kit Contact Us
APEX™ Oregon Green® 488 Antibody Labeling Kit Oregon Green 488 506 nm 526 nm 85,000 cm-1M-1 A10476 1 kit Contact Us
APEX™ Pacific Blue™ Antibody Labeling Kit Pacific Blue 410 nm 455 nm 46,000 cm-1M-1 A10478 1 kit Contact Us
ARES™ Alexa Fluor® 488 DNA Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A21665 1 kit Contact Us
ARES™ Alexa Fluor® 546 DNA Labeling Kit Alexa Fluor 546 554 nm 570 nm 112,000 cm-1M-1 A21667 1 kit Contact Us
ARES™ Alexa Fluor® 555 DNA Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A21677 1 kit Contact Us
ARES™ Alexa Fluor® 594 DNA Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A21669 1 kit Contact Us
ARES™ Alexa Fluor® 647 DNA Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A21676 1 kit Contact Us
ATTO-TAG™ CBQCA Amine-Derivatization Kit ATTO-TAG CBQCA 465 nm 560 nm Not Determined A2333 1 kit Contact Us
ATTO-TAG™ FQ Amine-Derivatization Kit ATTO-TAG FQ 486 nm 591 nm Not Determined A2334 1 kit Contact Us
Alexa Fluor® 350 Monoclonal Antibody Labeling Kit Alexa Fluor 350 346 nm 442 nm 19,000 cm-1M-1 (methanol) A20180 1 kit Contact Us
Alexa Fluor® 350 Protein Labeling Kit Alexa Fluor 350 346 nm 442 nm 19,000 cm-1M-1 A10170 1 kit Contact Us
Alexa Fluor® 430 Protein Labeling Kit Alexa Fluor 430 433nm 539 nm 15,000 cm-1M-1 A10171 1 kit Contact Us
Alexa Fluor® 488 Microscale Protein Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A30006 1 kit Contact Us
Alexa Fluor® 488 Monoclonal Antibody Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A20181 1 kit Contact Us
Alexa Fluor® 488 Oligonucleotide Amine Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A20191 1 kit Contact Us
Alexa Fluor® 488 Protein Labeling Kit Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 A10235 1 kit Contact Us
Alexa Fluor® 532 Monoclonal Antibody Labeling Kit Alexa Fluor 532 530 nm 555 nm 81,000 cm-1M-1 A20182 1 kit Contact Us
Alexa Fluor® 532 Protein Labeling Kit Alexa Fluor 532 530 nm 555 nm 81,000 cm-1M-1 A10236 1 kit Contact Us
Alexa Fluor® 546 Monoclonal Antibody Labeling Kit Alexa Fluor 546 554 nm 570 nm 112,000 cm-1M-1 A20183 1 kit Contact Us
Alexa Fluor® 546 Protein Labeling Kit Alexa Fluor 546 554 nm 570 nm 112,000 cm-1M-1 A10237 1 kit Contact Us
Alexa Fluor® 555 Microscale Protein Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A30007 1 kit Contact Us
Alexa Fluor® 555 Monoclonal Antibody Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A20187 1 kit Contact Us
Alexa Fluor® 555 Protein Labeling Kit Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 A20174 1 kit Contact Us
Alexa Fluor® 568 Monoclonal Antibody Labeling Kit Alexa Fluor 568 578 nm 603 nm 88,000 cm-1M-1 A20184 1 kit Contact Us
Alexa Fluor® 568 Protein Labeling Kit Alexa Fluor 568 578 nm 603 nm 88,000 cm-1M-1 A10238 1 kit Contact Us
Alexa Fluor® 594 Microscale Protein Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A30008 1 kit Contact Us
Alexa Fluor® 594 Monoclonal Antibody Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A20185 1 kit Contact Us
Alexa Fluor® 594 Protein Labeling Kit Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 A10239 1 kit Contact Us
Alexa Fluor® 633 Protein Labeling Kit Alexa Fluor 633 621 nm 639 nm 159,000 cm-1M-1 A20170 1 kit Contact Us
Alexa Fluor® 647 Microscale Protein Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A30009 1 kit Contact Us
Alexa Fluor® 647 Monoclonal Antibody Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A20186 1 kit Contact Us
Alexa Fluor® 647 Oligonucleotide Amine Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A20196 1 kit Contact Us
Alexa Fluor® 647 Protein Labeling Kit Alexa Fluor 647 651 nm 672 nm 270,000 cm-1M-1 A20173 1 kit Contact Us
Alexa Fluor® 660 Protein Labeling Kit Alexa Fluor 660 663 nm 690 nm 132,000 cm-1M-1 A20171 1 kit Contact Us
Alexa Fluor® 680 Protein Labeling Kit Alexa Fluor 680 684 nm 707 nm 183,000 cm-1M-1 A20172 1 kit Contact Us
Biotin-XX Microscale Protein Labeling Kit Biotin-XX B30010 1 kit Contact Us
Biotin-XX Microscale Protein Labeling Kit with FluoReporter® Biotin Quantitation Assay Kit Biotin-XX B30756 1 kit Contact Us
DSB-X™ Biotin Protein Labeling Kit DSB-X Biotin D20655 1 kit Contact Us
FISH Tag™ DNA Green Kit *with AF 488 Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 F32947 1 kit Contact Us
FISH Tag™ DNA Orange Kit *with AF 555 Alexa Fluor 555 555 nm 572 nm 155,000 cm-1M-1 F32948 1 kit Contact Us
FISH Tag™ DNA Red Kit *with AF 594 Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 F32949 1 kit Contact Us
FISH Tag™ RNA Green Kit *with AF488 Alexa Fluor 488 494 nm 519 nm 73,000 cm-1M-1 F32952 1 kit Contact Us
FISH Tag™ RNA Red Kit *with AF 594 Alexa Fluor 594 590 nm 617 nm 92,000 cm-1M-1 F32954 1 kit Contact Us
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® Cell-Surface Biotinylation Kit Biotin-XX F20650 1 kit Contact Us
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