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AZDye 568 Picolyl Azide (CCT-1292)

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This product was previously sold as 1085 from Fluoroprobes.

Description

AZDye™ 568 Picolyl Azide is an advanced fluorescent probe that incorporates a copper-chelating motif to raise the effective concentration of Cu(I) at the reaction site to boost the efficiency of the CuAAC reaction, resulting in a faster and more biocompatible CuAAC labeling. Up to 40-fold increase of signal intensity, compared to conventional azides, was reported (see Selected References).

In addition, the use picolyl azides instead of conventional azides allows for at least a tenfold reduction in the concentration of the copper catalyst without sacrificing the efficiency of labeling, significantly improving biocompatibility of CuAAC labeling protocol.

In summary, the introduction of a copper-chelating motif into azide probe leads to a substantial increase in the sensitivity and reduced cell toxicity of CuAAC detection alkyne-tagged biomolecules. This will be of special value for the detection of low abundance targets or living system imaging.

AZDye 568™ is a bright, and highly photostable, orange-fluorescent probe optimally excited by the 568 nm laser line on the Ar-Kr mixed-gas laser. This probe is water-soluble and its fluorescence is pH independent over a wide pH range. The brightness and photostability of this dye are best suited to direct imaging of low-abundance targets. AZDye™ 568 dye structurally is identical to Alexa Fluor® 568 Dye. Its absorption/emission spectra is a perfect match to spectra of many other fluorescent dyes based on sulfonated rhodamine core, including CF® 568 Dye, Alexa Fluor® 568.

Specifications

Unit Size1 mg, 5 mg, 25 mg
Abs/Em Maxima578/602 nm
Extinction Coefficient
88,000
Flow Cytometry Laser Line
532 nm or 568 nm
Microscopy Laser Line
532 nm or 568 nm
Spectrally Similar DyesAlexa Fluor® 568, CF® 568
Molecular weight897.25
CASN/A
SolubilityWater, DMSO, DMF
Purity>95% (HPLC)
AppearanceRed solid
Storage Conditions-20°C. Desiccate
Shipping ConditionsAmbient temperature

Abs/Em Spectra

Af568 Af568 Vectorlabs

Selected References

  1. Ratnayeke, N., et al. (2022). CDC7-independent G1/S transition revealed by targeted protein degradation. Nature.605 (7909), 357-365. [PubMed]
  2. Gaebler, A.,et al. (2016). A highly sensitive protocol for microscopy of alkyne lipids and fluorescently tagged or immunostained proteins. J. Lipid. Res., 57, 1934-47. [PubMed]
  3. Jiang, H., et al. (2014). Monitoring Dynamic Glycosylation in Vivo Using Supersensitive Click Chemistry. Bioconjugate Chem.,25, 698-706. [PubMed]
  4. Uttamapinant, C., et al. (2012). Fast, Cell-Compatible Click Chemistry with Copper-Chelating Azides for Biomolecular Labeling. Angew. Chem. Int. Ed,.51, 5852-56. [PubMed]

Applicable patents and legal notices are available at legal notices.

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