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FAM tetrazine, 5-isomer

貨號 數量 價格 交貨時間
141E0 1 mg
$110
現貨
241E0 5 mg
$210
現貨
441E0 25 mg
$410
現貨
541E0 50 mg
$695
現貨
641E0 100 mg
$1190
現貨
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Tetrazine (methyltetrazine) derivative of fluorescein, pure 5-isomer.

Tetrazines are reactive heterodiene components for [4+2] inverse electron demand Diels-Alder reaction (ied-DA) with strained cycloalkenes (trans-cyclooctenes, cyclopropenes). This reaction is also called TCO (tetrazine-cyclooctene) ligation. The reaction is among the fastest bioconjugation reactions.

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磺基-菁5四嗪 (sulfo-Cyanine5 tetrazine)

水溶性菁染料四嗪衍生物,用於與反式環辛烯和其他應變烯烴進行 TCO 連接反應。

Cyanine5.5四嗪 (Cyanine5.5 tetrazine)

一種遠紅外發射染料,含有 Cyanine5.5 螢光團和四嗪片段的化合物,通過 TCO 連接與反式環辛烯/環丙烯結合。

General properties

Appearance: yellow solid
Mass spec M+ increment: 529.12
Molecular weight: 559.53
CAS number: 1619222-85-3
Molecular formula: C31H21N5O6
Solubility: good in DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 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

Spectral properties

Excitation/absorption maximum, nm: 492
ε, L⋅mol−1⋅cm−1: 74000
Emission maximum, nm: 517
Fluorescence quantum yield: 0.93
CF260: 0.22
CF280: 0.17
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