Preparation
2,5,7-Trichloro-3-pseudoindolone and 4-Methoxy-5,7-dichloro-3-thianaphthenone condensation.
Properties and Applications
brilliant blue purple. In concentrated sulfuric acid to blue light green, dilution after purple; In concentrated nitric acid for purple; In the basic insurance powder solution for yellow brown.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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4
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5
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4-5
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