Catalog #: AP12453
Name: APDye Fluor 647 NHS Ester
Chemical Formula: C40H46N3Na3O16S4
Molecular Alexa Fluor 647 Molecular Weight: 1022
CAS: 407627-60-5
Solubility: Water, DMSO, DMF
Abs/Em Maxima: 649/671 nm
Extinction coefficient: 270,000 cm-1M-1
Spectrally similar dyes: Cy5, DyLight® 649,
Purity: ≥95%
Availability: In Stock

DESCRIPTION
APDye Fluor 647 NHS Ester (Alexa Fluor ® 647 analog) CAS:407627-60-5 is a water-soluble, bright, far-red-fluorescent dye with excitation ideally suited for the 633 nm or 647 nm laser lines. A significant advantage to using long wavelength dyes such as Cy5 or APDye™ Fluor 647 dye over other fluorophores is the low autofluorescence of biological specimens in this region of the spectrum.
The NHS ester (or succinimidyl ester) is the most popular amine reactive group for labeling with the primary amines of proteins (Lys), amine-modified oligonucleotides, and other amine-containing molecules. Proteins can be labeled with APDye™ Fluor 647 NHS Ester at high molar ratios without significant self-quenching, leading to brighter conjugates and more sensitive detection. APDye™ Fluor 647 conjugates are often a probe of choice for detection of low abundance targets.
APDye™ Fluor 647 is structurally similar to Alexa Fluor® 647, and spectrally is almost identical to Cy5 Dye, Alexa Fluor® 647, CF® 647 Dye, or any other Cyanine5 based fluorescent dyes.

Axis Pharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.

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