Number | Date | Country | Kind |
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51/73 | Jan 1973 | CH |
This application is a continuation-in-part of copending application Ser. No. 332,431 filed Feb. 14th, 1973, now abandoned.
Number | Name | Date | Kind |
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3704302 | Enomoto et al. | Nov 1972 |
Entry |
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Gore et al., "Chemistry of Natural and Synthetic Colouring Matters," 1962, pp. 520, 592-593. |
Brown, "The Pyrimidines," 1962, pp. 32-33, 62-63, 82-83, Interscience Publishers. |
Brown, "The Pyrimldines, Supplement I," 1970, pp. 44-45, Interscience Publishers. |
Number | Date | Country | |
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Parent | 332431 | Feb 1973 |