Biological Staining Reagents

We provide a list of high-quality cyanine based chemical dyes for staining and labeling biological molecules. Our structurally diverse dye series that have been used by leading research organizations consist of molecules that absorb and emit at a range of different wavelengths allowing users to address specific research needs. The functional groups introduced in the dye molecules such as hydroxysuccinimidyl ester (NHS-ester) orĀ maleimideĀ  group can serve as handles for tethering proteins and nucleic acids, rendering them fluorescent for in vitro and in vivo studies. We provide these valuable chemical tools in various quantities at very competitive price.

Structure Details
Name: Ponceau S, dye content 85%
CAS: 6226-79-5
Order #: 50C955234
Purity :
MF : C22H12N4Na4O13S4
MW : 760.552
Name: 2,2'-Dibromo-9,9'-spirobi[9H-fluorene], 99%
CAS: 67665-47-8
Order #: 50C995307
Purity : 99%
MF : C25H14Br2
MW : 474.195