Chlorphenolrot, rein Indikator-Qualität

Lieferant: Thermo Scientific
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Synonyme: 4,4'-(3H-2,1-Benzoxathiol-3-yliden)bis[2-chlorphenol]-S,S-dioxid3′,3′′-Dichlorphenolsulfonphthalein

ACRO190040500EA 223 EUR
ACRO190040500 ACRO190040100
Chlorphenolrot, rein Indikator-Qualität
Chlorphenolrot
Formel: C₁₉H₁₂Cl₂O₅S
Molekulargewicht: 423,27 g/mol
Schmelzpunkt: 261 °C
Lagerungstemperatur: Raumtemperatur
MDL Number: MFCD00005877
CAS-Nummer: 4430-20-0
EINECS: 224-619-2

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Spezifikation Testergebnisse

Appearance Green to red-brown to brown Powder
Infrared spectrum Conforms
Loss on drying ≤8 % (110°C)
Solubility (0.1 % in ethanol) Clear brown-yellow to dark orange
UV Lambda max 572 to 576 nm (in 0.1 N NaOH)
Specific absorbance A (1%/1cm) ≥1000 (at Lambda max) On dried substance
Visual transition interval from pH 4.8 (yellow) to pH 6.4 (purple)

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