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sulfo-Cyanine5.5 tetrazine

四嗪類磺基-花菁5.5 無銅點擊化學

貨號	數量	價格	交貨時間
173E0	1 mg	$125	現貨
273E0	5 mg	$325	現貨
473E0	25 mg	$850	現貨
573E0	50 mg	$1490	現貨
673E0	100 mg	$1990	現貨

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sulfo-Cyanine5.5 is a water-soluble, hydrophilic far-red fluorophore, an analog of Cy5.5^®. Like other cyanine dyes, sulfo-Cyanine5.5 has an outstanding molar extinction coefficient, giving rise to its bright fluorescence. The molecule contains four sulfo groups that provide hydrophilicity and negative charge to the fluorophore and minimize non-specific binding.

This reagent contains tetrazine moiety that reacts with trans-cyclooctenes, cyclopropenes, and some strained cyclooctynes to form stable conjugates via an inverted electron demand [4+2]-cycloaddition (IEDDA).

The reagent possesses high aqueous solubility and hydrophilicity and is recommended for labeling biomolecules in an aqueous environment.

以
ChemDraw 格式下載

General properties

Appearance:	dark blue powder
Molecular weight:	1200.53
Molecular formula:	C₅₀H₄₈K₃N₇O₁₃S₄
Solubility:	good in water, DMF, DMSO
Quality control:	NMR ¹H and HPLC-MS (95+%)
Storage conditions:	24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light.
MSDS:	下載
	產品規格

Spectral properties

Excitation/absorption maximum, nm:	673
ε, L⋅mol⁻¹⋅cm⁻¹:	211000
Emission maximum, nm:	691
Fluorescence quantum yield:	0.21
CF₂₆₀:	0.09
CF₂₈₀:	0.11