BDP FL L-Cystine

Cat. # Quantity Price Lead time
4146-1mg 1 mg $139 in stock
4146-25mg 25 mg $1680 in stock
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BDP FL L-cystine is a symmetric disulfide for reversible thiol-specific labeling of thiolated oligonucleotides, proteins, and cells.

BDP FL L-cystine consists of two BDP FL molecules connected via a disulfide bridge between two cysteine residues. In the dimeric disulfide state, the fluorescence of the dye is quenched.

Like other symmetric disulfides, BDP FL L-cystine undergoes a thiol-disulfide interchange reaction. Reduction of the disulfide bridge releases the monomeric dye molecule and results in fluorescence in the green region of the spectrum.

Absorption and emission spectra of BDP FL

Absorption and emission spectra of BDP FL

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General properties

Appearance: orange powder
Molecular weight: 788.46
Molecular formula: C34H38B2F4N6O6S2
IUPAC name: (2R)-3-[[(2R)-2-carboxy-2-[3-(2,2-difluoro-10,12-dimethyl-1-aza-3-azonia-2-boranuidatricyclo[,7]dodeca-3,5,7,9,11-pentaen-4-yl)propanoylamino]ethyl]disulfanyl]-2-[3-(2,2-difluoro-10,12-dimethyl-1-aza-3-azonia-2-boranuidatricyclo[,7]dodeca-3,5,7,9,11-pentaen-4-yl)propanoylamino]propanoic acid
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 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: 503
ε, L⋅mol−1⋅cm−1: 92000
Emission maximum, nm: 509
Fluorescence quantum yield: 0.97
CF260: 0.015
CF280: 0.027
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