Number | Date | Country | Kind |
---|---|---|---|
52-22497 | Mar 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3461099 | Muzyczko et al. | Aug 1969 | |
3936399 | Hirai et al. | Feb 1976 | |
4028284 | Hirai et al. | Jun 1977 |
Entry |
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Helvetica Chimica Acta, 35, 1785-1793 (1952), Schwarzenbach et al._ |