FAM tetrazine, 6-isomer

Cat. # Quantity Price Lead time
151E0 1 mg $110 in stock
251E0 5 mg $210 in stock
451E0 25 mg $410 in stock
551E0 50 mg $695 in stock
651E0 100 mg $1190 in stock
Found better price? Let us know and we will propose the way forward!

Fluorescein (FAM) is a popular fluorophore that has bright emission in the green area of the visible spectrum. This fluorescein derivative contains tetrazine moiety that reacts with trans-cycloalkenes and other strained olefins in inverse electron demand Diels-Alder reaction (IEDDA). The reaction is very quick and specific. This reagent is a pure 6-isomer of FAM.

Absorption and emission spectra of FAM

Absorption and emission spectra of FAM

Customers also purchased with this product

Cyanine3 tetrazine

Tetrazine derivative of the fluorophore Cyanine3. Tetrazines react extremely quickly with strained alkenes (such as trans-cyclooctenes, cyclopropenes), and some strained alkynes.

FAM tetrazine, 5-isomer

FAM tetrazine (methyltetrazine) for the conjugation with trans-cyclooctenes and cyclopropenes. Pure 5-isomer of fluorescein.

Cyanine5 tetrazine

Cyanine5 is a universal red emitting dye with a very high extinction coefficient, and good quantum yield. This tetrazine derivative reacts very quickly with trans-cyclooctenes and cyclopropenes with the formation of stable conjugates.

General properties

Appearance: orange solid
Mass spec M+ increment: 531.1
Molecular weight: 559.53
Molecular formula: C31H21N5O6
Solubility: good in DMF, DMSO, poor in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 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/absorption maximum, nm: 492
ε, L⋅mol−1⋅cm−1: 74000
Emission maximum, nm: 517
Fluorescence quantum yield: 0.93
CF260: 0.22
CF280: 0.17
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.