Cresol red, pure indicator grade
Supplier: Thermo Scientific
Synonyms:
o-Cresolsulphonphthalein, 3,3-Bis(4-hydroxy-3-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide
151380050
151380250
151381000
ACRO151380050EA
51.6
GBP
ACRO151380050
ACRO151380250
ACRO151381000
Cresol red, pure indicator grade
Cresol red
Formula:
C₂₁H₁₈O₅S MW: 382,43 g/mol Melting Pt: 290 °C (dec.) Storage Temperature: Ambient |
MDL Number:
MFCD00005878 CAS Number: 1733-12-6 EINECS: 217-064-2 |
Specification Test Results
Appearance | Dark green to red-brown Powder |
Infrared spectrum | Conforms |
Solubility | (0.1 % in 50 % ethanol) Clear |
Specific extinction E (1%/1cm) | ≥1500 (572 nm, in 0.01 N NaOH) |
Visual transition interval | from pH 7.0 (orange) to pH 8.8 (purple) |
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