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Appearance
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Red to dark brown powder
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Solubility
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Red to very dark red (0.01 g in 10 mL Water:Methanol 1:1, hot)
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Absorption maxima (λmax1, in DMSO)
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550 - 560 nm
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Extinction coefficient at λmax1
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Min 275.0
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Absorption maxima (λmax2, in DMSO)
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516 - 526 nm
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Extinction coefficient at λmax2
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Min 300.0
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