Table of Fluorochromes

This is a table of some characteristics of fluorochromes useful for flow cytometry or fluorescence microscopy. Within groups, roughly in order of excitation wavelength (families excepted). Peak excitation and emission wavelengths often vary depending on the environment in which the probe finds itself. Be sure to also look up the excitation and emission spectra for your dye of choice. Note that colors you might see with a capable browser are only a very rough approximation!

Probe Ex (nm) Em (nm) MW Notes
Reactive and conjugated probes
Hydroxycoumarin 325 386 331 Succinimidyl ester
Aminocoumarin 350 445 330 Succinimidyl ester
Methoxycoumarin 360 410 317 Succinimidyl ester
Cascade Blue (375);401 423 596 Hydrazide
Pacific Blue 403 455 406 Maleimide
Pacific Orange 403 551
Lucifer yellow 425 528
NBD 466 539 294 NBD-X
R-Phycoerythrin (PE) 480;565 578 240 k
PE-Cy5 conjugates 480;565;650 670 aka Cychrome, R670, Tri-Color, Quantum Red
PE-Cy7 conjugates 480;565;743 767
Red 613 480;565 613 PE-Texas Red
PerCP 490 675 Peridinin chlorphyll protein
TruRed 490,675 695 PerCP-Cy5.5 conjugate
FluorX 494 520 587 (GE Healthcare)
Fluorescein 495 519 389 FITC; pH sensitive
BODIPY-FL 503 512
TRITC 547 572 444 TRITC
X-Rhodamine 570 576 548 XRITC
Lissamine Rhodamine B 570 590
Texas Red 589 615 625 Sulfonyl chloride
Allophycocyanin (APC) 650 660 104 k
APC-Cy7 conjugates 650;755 767 PharRed
Alexa Fluor dyes [antibody conjugates] (Molecular Probes)
Alexa Fluor 350 343 442 410
Alexa Fluor 405 401 421 1028
Alexa Fluor 430 434 540 702
Alexa Fluor 488 499 519 643 QY 0.92
Alexa Fluor 500 503 525 700
Alexa Fluor 514 517 542 714
Alexa Fluor 532 530 555 724 QY 0.61
Alexa Fluor 546 561 572 1079 QY 0.79
Alexa Fluor 555 553 568 1250 QY 0.1
Alexa Fluor 568 579 603 792 QY 0.69
Alexa Fluor 594 591 618 820 QY 0.66
Alexa Fluor 610 610 629 1285
Alexa Fluor 633 632 648 1200
Alexa Fluor 647 652 668 1300 QY 0.33
Alexa Fluor 660 663 691 1100
Alexa Fluor 680 680 702 1150
Alexa Fluor 700 696 719 1400
Alexa Fluor 750 752 776 1300
Alexa Fluor 790 782 804 1750
Cy Dyes
Cy2 489 506 714 QY 0.12
Cy3 (512);550 570;(615) 767 QY 0.15
Cy3B 558 572;(620) 658 QY 0.67
Cy3.5 581 594;(640) 1102 QY 0.15
Cy5 (625);650 670 792 QY 0.28
Cy5.5 675 694 1128 QY 0.23
Cy7 743 767 818 QY 0.28
DyLight dyes (Pierce)
DyLight 350 353 432
DyLight 405 400 420
DyLight 488 493 518
DyLight 549 562 576
DyLight 594 593 618
DyLight 633 638 658
DyLight 649 654 673
DyLight 680 692 712
DyLight 750 752 778
DyLight 800 777 794
Nucleic acid probes
Hoechst 33342 343 483 616 AT-selective
DAPI 345 455 AT-selective
Hoechst 33258 345 478 624 AT-selective
SYTOX Blue 431 480 ~400 DNA
Chromomycin A3 445 575 CG-selective
Mithramycin 445 575
YOYO-1 491 509 1271
Ethidium Bromide 493 620 394
Acridine Orange 503 530/640 DNA/RNA
SYTOX Green 504 523 ~600 DNA
TOTO-1, TO-PRO-1 509 533 Vital stain, TOTO: Cyanine Dimer
TO-PRO: Cyanine Monomer
Thiazole Orange 510 530
Propidium Iodide (PI) 536 617 668.4
LDS 751 543;590 712;607 472 DNA (543ex/712em), RNA (590ex/607em)
7-AAD 546 647 7-aminoactinomycin D, CG-selective
SYTOX Orange 547 570 ~500 DNA
TOTO-3, TO-PRO-3 642 661
DRAQ5 647 681,697 413 (Biostatus) (usable excitation down to 488)
Cell function probes
Indo-1 361/330 490/405 1010 AM ester. Low/High Ca++,
Fluo-3 506 526 855 AM ester. pH > 6
DCFH 505 535 529 2'7'Dichorodihydrofluorescein, oxidized form
DHR 505 534 346 Dihydrorhodamine 123, oxidized form,
light catalyzes oxidation
SNARF 548/579 587/635 pH 6/9
Fluorescent Proteins
QY BR PS Source
Y66H 360 442            
Y66F 360 508
EBFP 380 440 0.18 9 Addgene monomer
EBFP2 383 448 0.56 18 Addgene monomer
Azurite 383 447 0.55 14 monomer
GFPuv 385 508
T-Sapphire 399 511 0.60 26 25 weak dimer
TagBFP 402 457 26k 0.63 33 ++ Evrogen monomer
Cerulean 433 475 0.62 27 36 weak dimer
mCFP 433 475 0.40 13 64 monomer
ECFP 434 477 0.15 3
CyPet 435 477 0.51 18 59 weak dimer
Y66W 436 485
dKeima-Red 440 616 0.31 8 MBL dimer
mKeima-Red 440 620 0.24 3 MBL monomer
TagCFP 458 480 0.57 29 Evrogen dimer
AmCyan1 458 489 0.75 29 Clontech tetramer
mTFP1 (Teal) 462 492 0.85 54 dimer
S65A 471 504
Midoriishi-Cyan 472 495 0.9 25 MBL dimer
Wild Type GFP 396,475 508 26k 0.77 16
S65C 479 507
TurboGFP 482 502 26 k 0.53 37 Evrogen dimer
TagGFP 482 505 27k 0.59 34 ++ Evrogen monomer
TagGFP2 483 506 27k 0.6 34 ++ Evrogen monomer
AcGFP1 484 510 27k 0.82 27 Clontech
S65L 484 510
Emerald 487 509 0.68 39 0.69 Invitrogen weak dimer
S65T 488 511
EGFP 488 507 26k 0.60 34 174 Addgene weak dimer
Azami-Green 492 505 0.74 41 MBL tetramer (monomeric available)
ZsGreen1 493 505 105k 0.91 40 Clontech tetramer
Dronpa-Green 503 518 0.85 81 MBL photoswitchable
TagYFP 508 524 27k 0.62 47 Evrogen monomer
EYFP 514 527 26k 0.61 51 60 weak dimer
Topaz 514 527 0.60 57 monomer
Venus 515 528 0.57 53 15 weak dimer
mCitrine 516 529 0.76 59 49 monomer
YPet 517 530 0.77 80 49 weak dimer
TurboYFP 525 538 26 k 0.53 56 Evrogen dimer
PhiYFP 525 537 26.8 k 0.40 52 ++ Evrogen weak dimer
PhiYFP-m 525 537 26.8 k 0.39 48 ++ Evrogen monomer
ZsYellow1 529 539 0.65 13 Clontech tetramer
mBanana 540 553 0.70 4 Clontech monomer
Kusabira-Orange 548 559 0.60 31 MBL monomer
mOrange 548 562 0.69 49 9 monomer
mOrange2 549 565 0.60 35 Clontech monomer
mKO 548 559 0.60 31 122 monomer
TurboRFP 553 574 26 k 0.67 62 Evrogen dimer
tdTomato 554 581 0.69 95 98 Clontech tandem dimer
DsRed-Express2 554 591 0.42 15 Clontech
TagRFP 555 584 27k 0.48 48 Evrogen monomer
DsRed monomer 557 592 ~28k 0.1 3.5 16 Clontech monomer
DsRed2 ("RFP") 563 582 ~110k 0.55 24 Clontech
mStrawberry 574 596 0.29 26 15 Clontech monomer
TurboFP602 574 602 26 k 0.35 26 Evrogen dimer
AsRed2 576 592 ~110k 0.21 13 Clontech tetramer
mRFP1 584 607 ~30k 0.25 Tsien lab monomer
J-Red 584 610 0.20 8.8 13 dimer
mCherry 587 610 0.22 16 96 Clontech monomer
HcRed1 588 618 ~52k 0.03 0.6 Clontech dimer
mKate2 588 633 26k 0.40 25 + Evrogen monomer
Katushka (TurboFP635) 588 635 26k 0.34 22 ++ Evrogen dimer
mKate (TagFP635) 588 635 0.30 15 Evrogen monomer
TurboFP635 588 635 26 k 0.34 22 Evrogen dimer
mPlum 590 649 0.10 4.1 53 Clontech
mRaspberry 598 625 0.15 13 Clontech monomer; faster photobleach than mPlum
mNeptune 600 650 0.20 13 Tsien Lab monomer
E2-Crimson 611 646 0.23 29 Clontech
Other probes
Monochlorobimane 380 461 226 Glutathione probe
Calcein 496 517 623 pH > 5
HyPer 420/500 516 Hydrogen peroxide sensor

Legend:


References:


jdc: 1996-01-30; 2010-06-04 :-)
* Salk CCMI home page
* Webmaster