2',7'-Dichlorofluorescein, pure

Supplier: Thermo Scientific
Warning

Synonyms: 2',7'-Dichloro-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one

191530050 191530250 191531000
ACRO191530050EA 122 GBP
ACRO191530050 ACRO191530250 ACRO191531000
2',7'-Dichlorofluorescein, pure
2',7'-Dichlorofluorescein
Formula: C₂₀H₁₀Cl₂O₅
MW: 401,20 g/mol
Melting Pt: 280 °C (dec.)
Density: 0,79 g/cm³
Storage Temperature: Ambient
MDL Number: MFCD00005047
CAS Number: 76-54-0
EINECS: 200-968-6

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Specification Test Results

Appearance Light orange to red-brown Powder
Infrared spectrum Conforms
Loss on drying ≤5 % (110°C)
UV Lambda max 501 to 503 nm (in 0.1 N NaOH)
Specific absorbance A (1%/1cm) ≥2000 (at lambda max.)

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