1-(4-Nitrophenylazo)-2-naphthol, Sigma-Aldrich®

Lieferant: SIGMA ALDRICH MICROSCOPY
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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
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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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