5-Aminofluorescein (isomer I), Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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201626-1G 201626-250MG 201626-5G
201626-1GEA 126 GBP
201626-1G 201626-250MG 201626-5G
5-Aminofluorescein (isomer I), Sigma-Aldrich®
5-Aminofluorescein (isomer I)

Fluoresceinamine, isomer I has been used as a probe in immobilization and is used to determine its ability to potentiate the antiviral activity of poly r (A-U).


Fluoresceinamine, isomer I belongs to the class of derivatized fluoresceins. Fluoresceinamine, isomer I is suitable for use in a specific and sensitive spectrophotometric method for determining nitrite. It has been used to fluorescently tag nanoparticles through a competitive carboxyl-amine coupling reaction to visualise nanoparticle internalisation.

Formula: C₂₀H₁₃NO₅
Melting Pt: 223 °C (dec., lit.)
Storage Temperature: Room Temperature
MDL Number: MFCD00005052
CAS Number: 3326-34-9
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Specification Test Results

Appearance (Form) Powder
Infrared spectrum Conforms to Structure
Carbon, Anhydrous Basis 67.8 - 70.6%
Nitrogen, Anhydrous Basis 3.7 - 4.3%
Purity (HPLC) Typically 95+%
Water (by Karl Fischer) ≤10%
Solubility (Colour), c = 5 mg/ml (0.5%); Methanol Yellow to Very Dark Yellow and Orange to Very Dark Orange
Recommended Retest Period 4 Years

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