These new dyes offered by MTTI belong to the family of encapsulated dyes
known as the Squaraine Rotaxanes.
Product Brochure

Advantages Include:

  • Improved chemical and photochemical stability compared with squaraines, cyanines, Alexa® and Atto dyes.
  • Exhibit sharp absorption and emission bands thus provide reduced excitation and emission cross talk into channels where other fluorochromes are being used.
  • Do not exhibit aggregation induced spectral broadening under biological conditions at micromolar concentrations.
  • 5-20X brighter compared with cyanines, Alexa® and Atto dyes.
  • Photophysical properties stable over the pH range from 2-12.
  • Spectral properties compatible with the 633nm or 647nm laser lines on flow cytometers, confocal and in vivo imaging equipment.

Recent Publications

Custom Squaraine Rotaxane Dyes Also Prepared!

     
 
Catalog
Number		 Name Description Size Price (USD)
SR-1001

SRfluor™ 680 Phenyl

product insert pdf

 Lipophilic squaraine rotaxane analog that emits in the far-red region of the spectrum and is known to accumulate at lipophilic sites inside living cells. Spectral properties: abs max = 650 nm and emission max = 678 nm. 1mg $150.00
SR-1002

SRfluor™ 680 Carboxylate

product insert pdf

 Carboxyl functionalized squaraine rotaxane analog that emits in the far-red region of the spectrum. Spectral properties: abs max = 650 nm and emission max = 678 nm. This compound can be readily coupled to amino functionalities of biomolecules to provide fluorescent conjugates for use in multiple applications. 1mg $175.00
SR-1003 SRfluor™ 680
Crown
Crystalline Powder		 Squaraine rotaxane analog that emits in the far-red region of the spectrum and is functionalized with a crown ether which can bind to cations such as Na+ and K+. Spectral properties: abs max = 641 nm and emission max = 661 nm in ethanol. 1mg $199.00
SR-1004 SRfluor™680
maleimide
Crystalline Powder		 Squaraine rotaxane analog that emits in the far-red region of the spectrum and is functionalized with a maleimide group that can readily undergo conjugation with thiol groups. Spectral properties:abs max = 641 nm and emission max = 664 nm in ethanol. 1mg $225.00
SR-1005 SRfluor™680 NHS
ester
Crystalline Powder		 Squaraine rotaxane analog that emits in the far-red region of the spectrum and is functionalized with a hydroxysuccinimide ester group that can readily undergo conjugation with amino groups of biomolecules to provide fluorescent conjugates for use in multiple applications. Spectral properties: abs max = 650 nm and
emission max = 678 nm in DMSO.		 1mg $199.00

Alexa® is a trademark of Molecular Probes, a subsidiary of Invitrogen.