Fluorescein disodium salt concentrate for examination of subterranean waters (Uranine AP) (C.I. 45350), Supelco®

Supplier: MilliporeSigma

Synonyms: Yellow No. 82-(6-hydroxy-3-oxo-(3H)-xanthen-9-yl)benzoic acid disodium saltDisodium 2-(3-oxo-6-oxidoxanthen-9-yl)benzoate3',6'-Dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one, disodium saltAcid Yellow 73Fluorescein sodium salt

1.08462.0100 1.08462.1000 1.08462.0100 1.08462.1000
CA1.08462.1000CS 15888.93 CAD
CA1.08462.1000 CA1.08462.0100 EM1.08462.0100 EM1.08462.1000
Fluorescein disodium salt concentrate for examination of subterranean waters (Uranine AP) (C.I. 45350), Supelco®
Fluorescein disodium salt
Formula: C₂₀H₁₀Na₂O₅
MW: 376.28 g/mol
Storage Temperature: Ambient
MDL Number: MFCD00167039
CAS Number: 518-47-8
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Specification Test Results

Identity (UV/VIS-Spectrum) passes test
Appearance Reddish-brown powder, eventually with granular and bright parts.
Absorption maximum λmax. (buffer pH 8.0) 489 - 491 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; buffer pH 8.0; calc. on dried substance) ≥ 1800
Loss on drying (110 °C) ≤ 7 %

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