(5,6)-FAM diacetate NHS ester

Cat. # Quantity Price Lead time
2934-1mg 1 mg –   in stock
2934-25mg 25 mg $160 in stock
2934-50mg 50 mg $270 in stock
2934-100mg 100 mg $520 in stock
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(5,6)-FAM diacetate NHS ester is a cell-permeable amine-reactive label for biomolecules.

This molecule is non-fluorescent until the acetate groups are cleaved by intracellular esterases resulting in the formation of a highly fluorescent fluorophore with emission in the green spectrum range (absorption maximum at ~492 nm, emission maximum at ~517 nm). Due to this characteristic, this product is used for tracking cells and flow cytometric evaluations and studying intracellular esterase.

(5,6)-FAM diacetate absorbance and emission spectra

(5,6)-FAM diacetate absorbance and emission spectra

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General properties

Appearance: white solid
Molecular weight: 557.46
CAS number: 150347-59-4
Molecular formula: C29H19NO11
Solubility: good in DMF, DMSO
Quality control: NMR 1H and 31P, HPLC-MS (95%)
Storage conditions: 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/absorption maximum, nm: 492
Emission maximum, nm: 517
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