Chlorophenol red, pure indicator grade

Supplier: THERMO FISHER SCIENTIFIC CHEMICALS
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19004-0100 19004-0500
TS19004-0100EA 94 USD
TS19004-0100 TS19004-0500
Chlorophenol red, pure indicator grade
Chlorophenol red
Formula: C₁₉H₁₂Cl₂O₅S
Melting Pt: 261 °C
Storage Temperature: Ambient
MDL Number: MFCD00005877
CAS Number: 4430-20-0
EINECS: 224-619-2

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Specification Test Results

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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