1-(4-Nitrophenylazo)-2-naphthol, Sigma-Aldrich®
Lieferant: SIGMA ALDRICH MICROSCOPY
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Achtung
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Synonyme:
Para Red, 1-((4-Nitrophenyl)diazenyl)naphthalen-2-ol
M-Clarity™ Qualitätsstufe = MQ100
100994-25G
100994-25GEA
129
EUR
100994-25G
1-(4-Nitrophenylazo)-2-naphthol, Sigma-Aldrich®
1-(4-Nitrophenylazo)-2-naphthol
Para red is a biological stain. It is used as a fat soluble chemical dye and food additive. It is a banned colorant and a number of analytical techniques have been developed to detect it in food. Para Red may be used to make standards for analysis.
Formel:
C₁₆H₁₁N₃O₃ Molecular Weight: 293,28 g/mol Schmelzpunkt: 248…252 °C (Lit.) |
MDL:
MFCD00003908 CAS-Nummer: 6410-10-2 EINECS: 229-093-8 |
Spezifikation Testergebnisse
Appearance (colour) | Red |
Appearance (form) | Powder |
Infrared spectrum | Conforms to structure |
Wavelength in 0.008 g/L, Toluene | 485 - 491 nm |
Extinction coefficient | ≥8.000 |
Wavelength | 325 - 331 nm |
Carbon | 61.6 - 69.5% |
Nitrogen | 13.4 - 15.2% |
TLC consistent with control | Conforms |
Solubility (turbidity) c = 1 mg/ml, acetone | Clear to slightly hazy |
Solubility (colour) orange to red | Conforms to requirements |
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