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FAM tetrazine, 5-isomer

目录号 数量 价格 提前通知时间
141E0 1 mg $110 现货
241E0 5 mg $210 现货
441E0 25 mg $410 现货
541E0 50 mg $695 现货
641E0 100 mg $1190 现货
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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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Cyanine3 tetrazine

Tetrazine derivative of the fluorophore Cyanine3. Tetrazines react extremely quickly with strained alkenes (such as trans-cyclooctenes, cyclopropenes), and some strained alkynes.

Cyanine5叠氮化物

Cyanine5 叠氮化物是一种用 Cyanine5(一种流行的荧光染料)进行点击化学标记的试剂。
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Cyanine3叠氮化物 (Cyanine3 azide)

用于 сlick сhemistry 的 Cyanine3 荧光染料的叠氮衍生物。

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.
安全数据表(MSDS): 下载
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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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