Methyl red, pure indicator
Supplier: Thermo Fisher Scientific
Certificates
About this item
Synonyms: 2-(4-Dimethylaminophenylazo)benzoic acid, 2-((4-(Dimethylamino)phenyl)diazenyl)benzoic acid
CAS Number:493-52-7
:
Formula:C₁₅H₁₅N₃O₂
MDL Number:MFCD00002425
Molecular Weight:269.3 g/mol
Melting Pt:178…182 °C
Merck Index:12,06199
Storage Temperature:Ambient
EINECS:207-776-1
Specifications
- Environmentally Preferable:
Specifications
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)
Specification Test Results
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