5-Aminofluorescein (isomer I), Sigma-Aldrich®
Fornitore: SIGMA-ALDRICH MICROSCOPY
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Attenzione
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Synonyms:
5-Amino-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, Fluoresceinamine, isomer I, 5-Amino-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one
M-Clarity™ quality level = MQ200
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 Peso molecolare: 347,33 g/mol Punto di fusione: 223 °C (dec., lit.) Temperatura di stoccaggio: Room Temperature |
MDL Number:
MFCD00005052 CAS Number: 3326-34-9 |
Risultati del test di specificazione
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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