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Appearance
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Orange-red to green-brown to dark brown powder
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Identity (IR)
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Confirms to structure
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Loss on drying (at 105°C)
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Max 10.0%
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Absorption maxima (in buffer pH 8.0)
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488 to 491 nm
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UV absorbance ratio (P-15/P+15)
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1.2 - 1.7
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Specific absorptivity 1%/1cm (at λmax; buffer pH 8.0)
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Min 1700
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