Rouge de méthyle, pur indicateur
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
Acide 2-(4-dimethylaminophenylazo)benzoïque
Formule:
C₁₅H₁₅N₃O₂ Poids moléculaire: 269.3 g/mol Point de fusion: 178…182 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00002425 Numéro CAS: 493-52-7 EINECS: 207-776-1 Indice Merck: 12,06199 |
Résultats des tests de spécification
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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