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TAMRA maleimide, 5-isomer

貨號	數量	價格	交貨時間
17180	1 mg	$110	現貨
27180	5 mg	$210	現貨
47180	25 mg	$410	現貨
57180	50 mg	$695	現貨
67180	100 mg	$1190	現貨

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Maleimide derivative of TAMRA (tetramethylrhodamine) for the labeling of thiol groups. Pure 5-isomer of TAMRA.

建議協議

磺基-Cyanine3的水溶性硫醇反應衍生物，一種Cy3 類似物。

明亮的水溶性琥珀醯亞胺酯AF 647染料，用於蛋白質和抗體標記。

TAMRA（四甲基羅丹明）染料，純 5-異構體，帶有胺基，用於與親電試劑（NHS 酯、環氧化物等）結合。

Appearance:	red powder
Mass spec M+ increment:	552.2
Molecular weight:	552.58
Molecular formula:	C₃₁H₂₈N₄O₆
IUPAC name:	1-[2-({3',6'-Bis(dimethylamino)-3-oxospiro[isobenzofuran-1,9'-xanthen]-5-yl}carbonylamino)ethyl]-1H-pyrrole-2,5-dione
Solubility:	good in DMF, DMSO
Quality control:	NMR ¹H, 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:	下載
	產品規格

Excitation/absorption maximum, nm:	541
ε, L⋅mol⁻¹⋅cm⁻¹:	84000
Emission maximum, nm:	567
Fluorescence quantum yield:	0.1
CF₂₆₀:	0.32
CF₂₈₀:	0.19

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