Number | Date | Country | Kind |
---|---|---|---|
2733426 | Jul 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3212855 | Mast | Oct 1965 | |
4097240 | Hirsch | Jun 1978 |
Entry |
---|
Chemical Abstracts, 80: 67994x (1974). |
Chemical Abstracts, 82: 121271r (1975). |
Chemical Abstracts, 84: 27784e (1976). |