Medchemexpress LLC Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-6-carboxamide | 412319-45-0 | 98.1% | 576.55 g·mol⁻¹ | C29H28N4O9 | 5 MG

Supplier:  Medchemexpress LLC HY1358355MG

6-FAM-PEG3-Azide is a fluorescein-based azide reagent for click-chemistry conjugation to alkyne-containing biomolecules, commonly used to label oligonucleotides. It combines a 6-carboxyfluorescein fluorophore with a PEG3 spacer and an azide group to enable efficient copper-catalyzed azide-alkyne cycloaddition.

• Provides a 6-FAM fluorophore with Ex 498 nm and Em 532 nm.
• Includes a PEG3 spacer to improve solubility and reduce steric hindrance.
• Azide functionality enables copper-catalyzed azide-alkyne cycloaddition (click chemistry).
• High purity suitable for labeling applications (≈98%).
• Soluble in DMSO at 50 mg/mL; ultrasonic agitation may be recommended.
• Powder stable at -20°C; store solutions frozen for long-term stability.

Catalog No. 50-002-23507