Phenol red, pure indicator

Supplier: Thermo Scientific
Warning

Synonyms: 3,3-Bis(4-hydroxyphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide

151430250 151430050 151431000
ACRO151430250EA 133 GBP
ACRO151430250 ACRO151430050 ACRO151431000
Phenol red, pure indicator
Phenol red
Formula: C₁₉H₁₄O₅S
MW: 354,38 g/mol
Melting Pt: >300 °C
Storage Temperature: Ambient
MDL Number: MFCD00003552
CAS Number: 143-74-8
EINECS: 205-609-7
Merck Index: 13,07329

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Specification Test Results

Appearance Red Powder
Infrared spectrum Conforms
Solubility (0.1 % in 95% ethanol) Clear soluble
UV Lambda max 555 to 561 nm (in buffer)
Specific extinction E (1%/1cm) ≥1700 (at lambda max., in buffer)
Visual transition interval from pH 6.8 (yellow) to pH 8.2 (red)

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