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Timolftaleína Reag. Ph. Eur., ACS indicador

Fornecedor: Merck

Sinônimos: 3,3-Bis(4-hydroxy-5-isopropyl-o-tolyl)phthalide, 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)isobenzofuran-1(3H)-one

Nível de qualidade M-Clarity™ = MQ200

1.08175.0005 1.08175.0025 1.08175.0100
1.08175.0005EA 67.5 EUR
1.08175.0005 1.08175.0025 1.08175.0100
Timolftaleína Reag. Ph. Eur., ACS indicador
Timolftaleína
Fórmula: C₂₈H₃₀O₄
Peso Molecular: 430.54 g/mol
Ponto de Fusão: 253
Temperatura de Armazenamento: Ambiente
Número MDL : MFCD00005909
Número CAS: 125-20-2
EINECS: 204-729-7
Merck Index: 12,09542

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Especificações dos Resultados do Teste

Appearance White to almost white powder, eventually slightly yellowish.
Identity (UV/VIS-Spectrum) passes test
Absorption maximum λmax. (buffer pH 10.5) 592 - 596 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance) 800 - 900
Transition range (according to ACS) passes test
Transition range pH 9.0 - pH 10.5 colourless - blue
Loss on drying (110 °C) ≤ 1 %


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