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

Recommended protocol
Calculator
Customers also purchased with this product
BDP® 576/589 azide
Azide derivative of BDP 576/589 dye for labeling and detecting alkyne-containing biomolecules via сlick reaction.get free express delivery
Bis-ANS, protein conformation probe
High-affinity fluorescent probe for nonpolar cavities in proteins to monitor the formation of protein aggregates and indicate protein folding and conformational changes.Pentynoic acid STP ester
An activated ester for the introduction of alkyne into peptides/proteins and click reaction.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 |
