Fluorescein, pure

Supplier: Thermo Scientific
Warning

Synonyms: 3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, 2-(6-Hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid

119241000 119245000 119240025 119240250
ACRO119241000EA 98.8 GBP
ACRO119241000 ACRO119245000 ACRO119240025 ACRO119240250
Fluorescein, pure
Fluorescein
Formula: C₂₀H₁₂O₅
MW: 332,31 g/mol
Melting Pt: 314…316 °C
Storage Temperature: Ambient
MDL Number: MFCD00005050
CAS Number: 2321-07-5
EINECS: 219-031-8
Merck Index: 13,04185
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Specification Test Results

Appearance Red-brown to rust brown to brown Powder
Infrared spectrum Conforms
Loss on drying ≤3 %
Sulfated ash ≤0.5 %
Specific absorbance A (1%/1cm) ≥1800 (490 +/- 5 nm , 0.5% aq. soln. of Na2CO3)

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