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AF 555 NHS ester

目录号 数量 价格 提前通知时间
1K820 1 mg $140 现货
2K820 5 mg $450 现货
4K820 25 mg $1460 现货
5K820 50 mg $1890 现货
6K820 100 mg $2640 现货
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AF 555 NHS ester is a bright, photostable, and hydrophilic fluorescent dye for the yellow channel. This NHS ester is an amine-reactive dye; it can label amine groups in proteins, peptides, amino-modified oligos, and other target molecules.

AF 555 is a hydrophilic fluorophore with high fluorescence quantum yield and high photostability, an alternative to tetramethylrhodamine (TAMRA, TMR) or Cyanine3 dyes. The dye is useful for many applications, including cytometry and microscopy.

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General properties

Appearance: dark red powder
Molecular weight: 1058.36
Molecular formula: C39H46K3N3O16S4
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light.
安全数据表(MSDS): 下载
产品规格

Spectral properties

Excitation/absorption maximum, nm: 552
ε, L⋅mol−1⋅cm−1: 152000
Emission maximum, nm: 566
Fluorescence quantum yield: 0.14
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