Search Thermo Fisher Scientific
Dye-labeled phosphoramidites are intended for oligonucleotide synthesis designed for molecular assays, microscopy, and microarrays. A broad range of labeling options are available with coupling efficiency, emission, and absorption spectra comparable to other commercially available dyes.
These phosphoramidites may be used on automated DNA synthesizers following standard synthesis and deprotection procedures. Fluorescent tags can be incorporated at the 5′ end of an oligonucleotide, and DyLight dye–labeled phosphoramidites can be used in research applications without the constraints of licensing and royalty fees.
Our dye-labeled phosphoramidites are supported by:
Processes are monitored from material procurement through final QC and product release for batch-to-batch reproducibility. Purity of each phosphoramidite lot may be assessed by HPLC, NMR, and water determination by the Karl Fischer method. Our rigorously controlled manufacturing processes help minimize levels of reactive impurities which could be incorporated into the oligonucleotide during synthesis and result in the accumulation of by-products.
Thermo Scientific DyLight (DY) fluorescent labels offer choices with spectrally distinct colors for oligonucleotide labeling with ß-cyanoethyl phosphoramidites (CEP).
DY547 CEP | DY647 CEP | DY677 CEP | |
---|---|---|---|
Cat. No. | SY6332 | SY6334 | SY6336 |
Formula | C38H54IN4O2P | C47H63N4O5PS | C55H67N4O5PS |
Molecular weight | 756.74 g/mol | 827.07 g/mol | 927.18 g/mol |
HPLC purity | ≥90% at 547 nm | ≥85% at 647 nm | ≥85% at 677 nm |
Identity | UV-Vis spectrum conforms to that of the authentic sample | ||
Shipping / storage condition | Dry ice / –20°C | ||
Request quote |
Phosphoramidites with fluoresceine and its derivatives like 6-carboxyfluorescein (6-FAM), hexachlorofluorescein (HEX), tetrachlorofluorescein (TET) are also available to provide you with flexibility in oligo labeling.
Click images to enlarge
Fluorescein CEP | 6-FAM CEP | HEX CEP | TET CEP | ||
---|---|---|---|---|---|
Cat. No. | 27-1606 | 27-1608 | SY6342 | SY6341 | |
Chemical name | [(3′,6′-dipivaloylfluoresceinyl)-5,6-carboamidohexyl]-1-O-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite | Fluorescein dipivalate phosphoramidite, 6-isomer | 6-(4,7,2′,4′,5′,7′-hexachloro-3′,6′-dipivaloylfluoresceinyl-6-carboxamido)-hexyl-1-O-[(2-cyanoethyl)-(N,N-diisopropyl)]-phosphoramidite | 5′-tetrachloro-fluorescein phosphoramidite | |
Formula | C46H58N3O10P | C46H58N3O10P | C46H52N3O10Cl6P | C46H54N3O10Cl4P | |
Molecular weight | 843.95 g/mol | 843.94 g/mol | 1050.63 g/mol | 981.73 g/mol | |
CAS / PubChem# | N/A | 204697-37-0 / 58114954 | 1360547-55-2 | 877049-90-6 | |
HPLC purity | ≥90% | ≥90% | ≥95% | ≥95% | |
31P NMR purity | 85% | ≥95% (6-isomer) | N/A | N/A | |
Shipping / storage condition | Dry ice / –20°C | ||||
Request quote |
For flexible/bulk packaging, custom services, quotes, or items not listed above, please contact us or submit your inquiry.
仅供科研使用,不可用于诊断目的。