Methyl red, pure indicator
Supplier: Thermo Scientific
Ratings:
(No Reviews)
Total Ratings: 0
Avg. Ratings: 0.0 out of 5
Synonyms:
2-(4-Dimethylaminophenylazo)benzoic acid
, 2-((4-(Dimethylamino)phenyl)diazenyl)benzoic acid
ACRO264440250EA
28.3
GBP
ACRO264440250
ACRO264445000
ACRO264441000
Methyl red, pure indicator
Methyl red
Formula:
C₁₅H₁₅N₃O₂ MW: 269.3 g/mol Melting Pt: 178…182 °C Storage Temperature: Ambient |
MDL Number:
MFCD00002425 CAS Number: 493-52-7 EINECS: 207-776-1 Merck Index: 12,06199 |
Specification Test Results
Appearance | Dark red to brown to purple to violet Powder or crystals |
Infrared spectrum | Conforms |
Melting point | 178 to 182 °C |
Solubility | (0.1 % in ethanol) Clear |
Specific extinction E (1%/1cm) | ≥650 (430 nm, in buffer) |
Visual transition interval | from pH 4.2 (pink or red) to pH 6.2 (yellow) |
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