Pyrenebutyric acid NHS ester

Cat. # Quantity Price Lead time
63520 100 mg $110.00 21 days

Pyrene is a polyaromatic hydrocarbon which exhibits fluorescence in blue range of the spectrum. When two pyrene residues are closely spaced, excimer fluorescence is observed at longer wavelength. Therefore, pyrene is useful as a proximity label.

Pyrene exhibits affinity to graphite, and can be used as an anchor group for graphite. This reagent can be conjugated with biomolecules for their subsequent immobilization on graphite surfaces.

This NHS ester allows to label biomolecules with amino groups, such as proteins, peptides, amino-DNA and other molecules.

Pyrene is also a FRET donor for perylene.

Absorption and emission spectra of pyrene fluorophore

Absorption and emission spectra of pyrene fluorophore

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Coumarin 343 X azide

Coumarin 343 is a blue emitting fluorophore that can serve as a FRET donor for fluorescein (FAM). This azide derivative can be conjugated with alkynes by Click chemistry. An extended linker arm between the fluorophore and the azide group enhances solubility, and provides spatial separation between the dye and the biomolecule.

DBCO NHS ester

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain promoted copper free Click chemistry (spAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

General properties

Appearance: off-white solid
Mass spec M+ increment: 270.1
Molecular weight: 385.41
CAS number: 114932-60-4
Molecular formula: C24H19NO4
IUPAC name: 1-​Pyrenebutanoic acid, 2,​5-​dioxo-​1-​pyrrolidinyl ester
Solubility: good in DCM, chloroform, moderate in DMF, DMSO, low in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation maximum, nm: 343; 326; 313; 276; 265; 242; 234
Emission maximum, nm: 377; 397
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