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Appearance
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Brownish yellow coloured powder
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Purity (by GC)
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Min 99%
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Melting point
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95 - 99 deg C
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pH 6.6 - 8.6
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Colourless to yellow-orange
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Absorption maxima (buffer pH 6.6)
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329 - 333 nm
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Absorption maxima (buffer pH 11.0)
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389 - 393 nm
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Specific absorptivity A1%/1cm (λmax; 0.05 g/L; buffer pH 6.6)
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130 - 150
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Specific absorptivity A1%/1cm (λmax; 0.05 g/L; buffer pH 11.0)
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100 - 120
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