Cyanine3 NHS ester

  • Products
  • Reactive dyes
  • Dye NHS esters
  • Cyanine3 NHS ester

Cyanine3 NHS ester

标签:Cyanine3 NHS esters Microscopy Protein labeling
Cat. # Quantity Price Lead time
11020 1 mg 110.00$ in stock
21020 5 mg 210.00$ in stock
41020 25 mg 410.00$ in stock
51020 50 mg 695.00$ in stock
61020 100 mg 1190.00$ in stock

Cyanine3 NHS ester is a reactive dye for the labeling of amino-groups in biomolecules, an analog of Cy3® NHS ester. This reagent is ideal for the labeling of soluble proteins, peptides, and oligonucleotides/DNA. For delicate proteins consider using water-soluble sulfo-Cyanine3 NHS ester which does not require use of any co-solvent.

Cyanine3 NHS ester is a replacement for NHS esters of Cy3® and DyLight 549.

Cyanine3 NHS 酯是一种活性染料,用于标记生物分子中的氨基,是 Cy3® NHS 酯的类似物。 该试剂非常适合标记可溶性蛋白质、肽和寡核苷酸/DNA。 对于精细蛋白质,请考虑使用不需要使用任何助溶剂的水溶性磺基-Cyanine3 NHS 酯。

Cyanine3 NHS 酯是 Cy3® 和 DyLight 549 的 NHS 酯的替代品。

Cyanine3 NHS ester Cyanine3 NHS ester Cyanine3 NHS ester Cyanine3 NHS ester

Absorption and emission spectra of Cyanine3 fluorophore

Cyanine3 NHS ester

Cyanine3 NHS ester相关产品

Cyanine5.5 azide

Far red / near infrared fluorescent Cyanine5.5 dye derivative for Click Chemistry.

用于 Click Chemistry 的远红/近红外荧光 Cyanine5.5 染料衍生物。

Sulfo-Cyanine5.5 carboxylic acid

Water soluble far red fluorescent dye sulfo-Cyanine5.5, free non-activated carboxylic acid. Useful for the calibration, and as a non-reactive control.

水溶性远红荧光染料sulfo-Cyanine5.5,游离非活化羧酸。 用于校准,并作为非反应控制。

Pyrene azide 2

Pyrene azide with longer linker, for Click Chemistry.

具有更长接头的芘叠氮化物,用于 Click Chemistry。

General properties

Appearance: red powder
Mass spec M+ increment: 474.2
Molecular weight: 641.5
CAS number: 2632339-91-2
Molecular formula: C34H40N3BF4O4
IUPAC name: 3H-​Indolium, 2-​[3-​(1,​3-​dihydro-​1,​3,​3-​trimethyl-​2H-​indol-​2-​ylidene)​-​1-​propen-​1-​yl]​-​1-​[6-​[(2,​5-​dioxo-​1-​pyrrolidinyl)​oxy]​-​6-​oxohexyl]​-​3,​3-​dimethyl-​, tetrafluoroborate
Solubility: poorly soluble in water (2.3 mM = 1.5 g/L), soluble in organic solvents (DMF, DMSO, dichloromethane)
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 555
ε, L⋅mol−1⋅cm−1: 150000
Emission maximum, nm: 570
Fluorescence quantum yield: 0.31
CF260: 0.04
CF280: 0.09


  1. Wang, S.; Latallo, M.J.; Zhang, Z.; Huang, B.; Bobrovnikov, D.G.; Dong, D.; Livingston, N.M.; Tjoeng, W.; Hayes, L.R.; Rothstein, J.D.; Ostrow, L.W.; Wu, B.; Sun, S. Nuclear export and translation of circular repeat-containing intronic RNA in C9ORF72-ALS/FTD. Nature Communications, 2021, 12(1), 4908. doi: 10.1038/s41467-021-25082-9
  2. Chiou, A.E.; Hinckley, J.A.; Khaitan, R:; Varsano, N.; Wang, J.; Malarkey, H.F.; Hernandez, C.J.; Williams, R.M.; Estroff, L.A.; Weiner, S.; Addadi, L.; Wiesner, U.B.; Fischbach, C. Fluorescent Silica Nanoparticles to Label Metastatic Tumor Cells in Mineralized Bone Microenvironments. Small, 2021, 17(15), 2001432. doi: 10.1002/smll.202001432
  3. Chudinov, A.V.; Vasiliskov, V.A.; Kuznetsova, V.E.; Lapa, S.A.; Kolganova, N.A.; Timofeev, E.N. Mononucleotide repeat expansions with non-natural polymerase substrates. Scientific Reports, 2021, 11, 2423. doi: 10.1038/s41598-021-82150-2
  4. Huo, S.; Zhao, P.; Shi, Z.; Zou, M.; Yang, X.; Warszawik, E.; Loznik, M.; Göstl, R.; Herrmann, A. Mechanochemical bond scission for the activation of drugs. Nature Chemistry, 2021, 13, 131–139. doi: 10.1038/s41557-020-00624-8