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Rouge de chlorophénol, pur grade Indicateur

Fournisseur: Thermo Scientific
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Synonyms: S,S-Dioxyde du 4,4'-(3H-2,1-benzoxathiol-3-ylidène)bis[2-chlorophénol]

ACRO190040500EA 244 CHF
ACRO190040500 ACRO190040100
Rouge de chlorophénol, pur grade Indicateur
Rouge de chlorophénol
Formule: C₁₉H₁₂Cl₂O₅S
MW: 423,27 g/mol
Melting Pt: 261 °C
température de stockage: Ambient
MDL Number: MFCD00005877
Numéro CAS: 4430-20-0

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Résultats des tests de spécification

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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