Janelia Fluor® 635, SE

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Cat.No. 6419 - Janelia Fluor 635, SE | C33H29F2N3O6Si
Description: Cell permeable red fluorescent dye; supplied as NHS ester
Alternative Names: JF 635, NHS
Chemical Name: 1-[10-[2-Carboxy-5-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]phenyl]-9,9-dimethyl-7-[1-(3-fluoroazetidinyl)]-9-silaanthracen-2(9H)-ylidene]-3-fluoroazetidinium, inner salt
Datasheet
Citations
Reviews
Protocols (1)
Literature

Biological Activity

Red fluorescent dye; supplied as an NHS ester for coupling to primary amine groups. NHS ester can be converted to relevant substrate for use in self-labeling tag systems, e.g. HaloTag® and SNAP-tag®. Suitable for confocal fluorescent imaging and super resolution microscopy (SRM) techniques, such as dSTORM (live and fixed cells). Cell permeable. Excitation maximum = 635 nm; emission maximum = 652 nm; Quantum yield = 0.56; Max extinction coefficient = 167,000 M-1cm-1 (measured in Ethanol or TFE plus 0.1% TFA); Correction factor = 0.0524. Exhibits low nonspecific background staining.

To measure the absorbance spectrum of this dye we recommend the following solvent: ethanol or trifluoroethanol plus 0.1% TFA.

HaloTag is a trademark of Promega Corporation, and SNAP-tag is a trademark of New England BioLabs, Inc.

Licensing Information

Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus

Technical Data

M. Wt 629.69
Formula C33H29F2N3O6Si
Storage Store at -20°C
Smiles O=C(ON1C(CCC1=O)=O)C2=CC=C(C([O-])=O)C(C(C3=CC=C(N4CC(F)C4)C=C3[Si]5(C)C)=C(C=C/6)C5=CC6=[N+]7CC(F)C\7)=C2

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Solubility
DMSO 62.97 100

Preparing Stock Solutions

The following data is based on the product molecular weight 629.69. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.59 mL 7.94 mL 15.88 mL
5 mM 0.32 mL 1.59 mL 3.18 mL
10 mM 0.16 mL 0.79 mL 1.59 mL
50 mM 0.03 mL 0.16 mL 0.32 mL

Molarity Calculator

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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

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Product Datasheets

Safety Datasheet

References

References are publications that support the products' biological activity.

Grimm et al (2017) A general method to fine-tune fluorophores for live-cell and in vivo imaging. Nat.Methods 14 987 PMID: 28869757


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Citations for Janelia Fluor® 635, SE

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Protocols for Janelia Fluor® 635, SE

The following protocol features additional information for the use of Janelia Fluor® 635, SE (Cat. No. 6419).

Literature in this Area

Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* or download your copy today!

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