Table 8.2 Cell membrane–impermeant cyanine nucleic acid stains.

Cat. No.DyeEx/Em *MW †
SYTOX Dyes: Dead-Cell Stains ‡
S11348
S34857
SYTOX Blue445/470~400
S7020
S34860
SYTOX Green504/523~600
S11368
S34861
SYTOX Orange547/570~500
S34859SYTOX Red640/658~450
Cyanine Dimers: High-Affinity Stains § 
P3580POPO-1434/4561170.53
B3582BOBO-1462/4811202.66
Y3601YOYO-1491/5091270.65
T3600TOTO-1514/5331302.78
J11372JOJO-1529/5451272.63
P3584POPO-3534/5701222.61
L11376LOLO-1565/5791462.54
B3586BOBO-3570/6021254.73
Y3606YOYO-3612/6311322.73
T3604TOTO-3642/6601354.85
N7565Dimer Sampler Kit **VariousVarious
Cyanine Monomers: Nuclear Counterstains ††
P3581PO-PRO-1435/455579.26
Y3603YO-PRO-1491/509629.32
T3602TO-PRO-1515/531645.38
J11373JO-PRO-1530/546630.31
P3585PO-PRO-3539/567605.30
Y3607YO-PRO-3612/631655.36
T3605TO-PRO-3642/661671.42
T7596TO-PRO-5747/770697.46
* Wavelengths of excitation (Ex) and emission (Em) maxima, in nm. All excitation and emission maxima were determined for dyes bound to double-stranded calf thymus DNA in aqueous solution. † Molecular weight (MW) for the anhydrous compound. The preceding ~ symbol indicates an approximate value, not including counterions. ‡ Products (S11348, S7020, S11368) supplied as 250 µL of a 5 mM solution; flow cytometry products (S34857, S34860, S34861) supplied as 1 mL of a 1 mM solution; SYTOX Red Dead Cell Stain (S34859) is supplied as 1 mL of a 5 µM solution. § Products (except N7565) supplied as 200 µL of a 1 mM solution. ** Includes 10 µL each of a 1 mM solution of the TOTO-1, TOTO-3, YOYO-1, YOYO-3, BOBO-1, BOBO-3, POPO-1 and POPO-3 dyes. †† Products supplied as 1 mL of a 1 mM solution.