Sulfo-Cy7
Structure
MW = 720.94
Properties | |
Excitation maximum (nm) | 747 |
Emission maximum (nm) | 774 |
Extinction coefficient (M-1 cm-1) | 200 000 * |
* Measured in phosphate-buffered saline, Mujumdar, R. B.,etc. Bioconjugate Chem. 1993_4_105-111.
Carbocyanine Dyes Amine-Reactive
Cyanine dyes are a series of reactive fluorescent dyes that are widely used for labeling peptides, proteins, nucleotides and nucleic acids. Cyanine dyes are a single family of bright fluorescent signals with good water-solubility. Unlike fluoresceins and hydroxycoumarins, their excitations and emissions are pH-independent. Among the cyanine dyes, Cyanine 3 dyes have fluorescence enhanced upon conjugating to proteins while other cyanine have fluorescence reduced due to the quenching effect of electron-rich amino acids (such as Trp, His and Tyr etc) in proteins. In general, the Cyanine dyes have the following features:
Good water solubility enables labeling reactions conveniently run in aquesous media without using organic solvents (such as DMF or DMSO) as co-solvent
Low non-specific binding of resultant conjugates facilitate the assay development
A wide range of excitation and emission wavelengths makes them available for versatile fluorescence instruments
Cat# | Name | Size | Ex (nm) | Em (nm) | Soluble in |
1050 | Cyanine 3 acid | 5 mg | 548 nm | 562 nm | Water |
1051 | Cyanine 3 acid, mono-NHS ester | 1 mg | 548 nm | 562 nm | Water |
1053 | Cyanine 5 acid | 5 mg | 646 nm | 664 nm | Water |
1054 | Cyanine 5 acid, mono-NHS ester | 1 mg | 646 nm | 664 nm | Water |
1056 | Cyanine 5.5 acid | 5 mg | 673 nm | 692 nm | Water |
1057 | Cyanine 5.5 acid, mono-NHS ester | 1 mg | 673 nm | 692 nm | Water |
1058 | Cyanine 7 acid | 5 mg | 747 nm | 774 nm | Water |
1059 | Cyanine 7 acid, mono-NHS ester | 1 mg | 747 nm | 774 nm | Water |
Name | Sulfo-Cy7 | ||
---|---|---|---|
CAT# | 1058-5mg | CAS# | N/A |
Storage# | −20°C干燥避光 | Shelf Life# | 12个月 |
Ex(nm)# | 747 | Em(nm)# | 774 |
MW# | 720.94 | Solvent# | N/A |
Name | Sulfo-Cy7 |
---|---|
CAT# | 1058-5mg |
CAS# | N/A |
Storage# | −20°C干燥避光 |
Shelf Life# | 12个月 |
Ex(nm)# | 747 |
Em(nm)# | 774 |
MW# | 720.94 |
Solvent# | N/A |