HEX NHS ester, 6-isomer
| 貨號 | 數量 | 價格 | 交貨時間 | 購買此產品 |
|---|---|---|---|---|
| 2B220 | 5 mg |
$219.90
|
現貨 | |
| 4B220 | 25 mg |
$1099.00
|
現貨 |
Activated NHS-ester of HEX (Hexachlorofluorescein) dye, a pure 6-isomer. This NHS ester is an amine-reactive dye for labeling of amine groups in proteins, peptides, amino-modified oligos, and other target molecules.
HEX is a hexachlorinated derivate of the fluorescent dye fluorescein. HEX exhibits an excitation peak at 533 nm and an emission peak at 549 in the green-yellow area. It can serve as a substitute for JOE, BDP™ 530/550, VIC™ because of their similar spectral characteristics.
HEX NHS ester is widely used in nucleic acid sequencing, PCR/qPCR, and related research.
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General properties
| Appearance: | light orange powder |
| Molecular weight: | 680.06 |
| CAS number: | 2129651-79-0 |
| Molecular formula: | C25H9Cl6NO9 |
| Solubility: | very soluble in DMSO, DMF |
| 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. |
| MSDS: | 下載 |
| 產品規格 |
Spectral properties
| Excitation/absorption maximum, nm: | 533 |
| ε, L⋅mol−1⋅cm−1: | 87770 |
| Emission maximum, nm: | 549 |
| Fluorescence quantum yield: | 0.57 |
| CF260: | 0.30 |
| CF280: | 0.13 |


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