5-FAM-X, SE contains the aminohexanoyl spacer (known as 'X') between the FAM fluorophore and the succinimidyl ester. The 'X' spacer separates the fluorophore from the biomolecule to which it is conjugated. The 'X' spacer may potentially reduce the quenching that typically occurs when a fluorescein molecule is...

Synthetic. Chemical. CAS: 148356-00-7. Formula: C31H26N2O10. MW: 586.55. Synthetic. Amine-reactive fluorescent probe for introducing a fluorescein label at a nucleophilic residue of a target molecule. This fluorescein labeling reagent has an added (X) spacer to improve accessibility of the reactive group by...