Specifications:
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Transition Range
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pH 3.5-7.5
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Wine red-Green
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Solubility 0.1% (95% EtOH)
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Clear solution
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Absorption maximum (pH 3.5) ?1max
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406-410nm
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Absorption maximum (pH 7.5) ?2max
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614-618nm
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Absorptivity (A1%/1cm at pH 3.5 at ?1max)
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>350
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Absorptivity (A1%/1cm at pH 7.5 at ?2max)
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>600
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Loss On Drying (110°C)
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<5%
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