Examples of nonacylated oxazine leucos are rare, possibly due to the high cost of the phenoxazine starting material. Apart from a few examples described earlier, the leuco 35 is reported to give a blue image.8
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Examples of nonacylated oxazine leucos are rare, possibly due to the high cost of the phenoxazine starting material. Apart from a few examples described earlier, the leuco 35 is reported to give a blue image.8
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