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Appearance
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Dark green powder
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Dye content (by spectrophotometry)
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Min 70.0%
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Identity (UV/VIS spectrum)
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Passes test
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Absorption maxima in 50% ethanol
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596 - 599 nm
|
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Specific absorptivity A 1%/1cm (λmax;0.0005%;ethanol 50%)
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980 - 1400
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TLC test
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Passes test
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Loss on drying ( at 50°C; <1hPa)
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Max 25.0%
|
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Suitability (for microscopy)
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Passes test
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