HEX NHS ester, 6-isomer
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
2B220 | 5 mg | $175 | in stock |
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, BODIPY™ 530/550, VIC™ because of their similar spectral characteristics.
HEX NHS ester is widely used in nucleic acid sequencing, PCR/qPCR, and related research.
Absorption and emission spectra of HEX

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VIC is an asymmetric xanthene dye with spectral properties similar to HEX and JOE, widely used for labeling PCR probes. This derivative is an azide for dye conjugation by click chemistry.AF 647 NHS ester
Bright, water-soluble succinimide ester of AF 647 dye for protein and antibody labeling.AF 555 NHS ester
AF 555 NHS ester, a bright, photostable, and hydrophilic fluorescent dye for the yellow channel.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: | Download |
Product specifications |
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 |
