Quick Order |All Online Ordering|Product Catalog Ordering|Oligo Modifications List|Product Info & Literature|Oligo Design Tools/Resources

AF Dye 594

Search Modifications
picture of AF Dye 594

Modification : AF Dye 594

Catalog Reference Number
Category
Modification Code
5 Prime
3 Prime
Internal
Molecular Weight (mw)
Extinction Coeficient (ec)
Technical Info (pdf)
Absorbance MAX
Emission MAX
Absorbance EC



26-6478
Fluorescent Dyes
[AF594]
Y
Y
Y
819.85
92
PS26-6478.pdf
590
617
590


Catalog NoScalePrice
26-6478-0550 nmol$575.00
26-6478-02200 nmol$575.00
26-6478-011 umol$675.00
26-6478-032 umol$1,080.00

This modification is a post synthesis conjugation to a primary amino group thus an additional modification with an amino group is required. A C3, C6 or C12 amino group can be placed at the 5' or for the 3' end a C3 or C7 amino and for internal positions an amino modified base is used, e.g Amino dT C6.

YIELD
NHS based modifications are post synthesis conjugation performed using a primary amino group. The yield is lower as compared to direct automated coupling of modifications that are available as amidites. Approximate yield for various scales are given below.

~2 nmol final yield for 50 nmol scale synthesis.
~5 nmol final yield for 200 nmol scale synthesis.
~16 nmol final yield for 1 umol scale synthesis

AF Dyes (similar to Alexa Fluor NHS Esters) are a set of fluorescent dyes that span the visible electromagnetic spectrum, as well as some of the near-IR. The absorbance range is 346-749 nm, and the emission range is 442-775 nm. Generally speaking, AF dyes are brighter, chemically more stable, and less pH-sensitive than other fluorescent dyes commonly used to label oligonucleotides (1). Because they currently only are in the form of NHS esters, oligos first must be synthesized with an Amino Linker modification (either at the ends or internally). The appropriate AF Dye is then manually attached to the oligo through the amino group in a separate reaction post-synthesis. The list of currently available dyes includes AF Dye 350, -405, -430, -488, -500, -514, -532, -546, -555, -568, -594, -610, -633, -647, -660, -680, -700, -750, with the number indicating the appropriate absorbance wavelength for the particular dye. AF Dyes are suitable for a variety of in vitro and in vivo applications. However, for in vivo experiments, users should note that dyes 350/405, being "blue" dyes, require higher-energy excitations than the other. Users of these particular dyes should confirm that the higher-energy required for excitation does not damage the relevant cells or tissues being used in the in vivo experiments.


-


Royalty charges are additional for Alexa dyes.

References
1. Panchuk-Voloshina, N., Haugland, R.P., Bishop-Stewart, J., Bhalgat, M.K., Millard, P.J., Mao, F., Leung, W-Y., Haugland, R.P. Alexa Dyes, a Series of New Fluorescent Dyes that Yield Exceptionally Bright, Photostable Conjugates. J. Histochem. Cytochem. (1999), 47: 1179-1188.

- AF Dye 594

Oligonucleotide Synthesis |  Flourescent Molecular Probes |  Gene Detection Systems |  Tools & Reagents |  Gene Assays |  RNAi
© 2020 Gene Link |  Terms & Conditions |  Licenses |  Privacy Policy |  October 26, 2020 6:29:56 AM