| 摘要 |
1,234,253. Hydrazinium compound. SANDOZ Ltd. 21 June, 1968 [25 July, 1967; 29 Aug., 1967], No. 29823/68. Heading C2C. [Also in Divisions C4-C5] N,N - dimethyl - N - [(4 - amino - 3 - chloro- 6 - methylphenyl) - carbamoyl] - methyl hydrazinium chloride is prepared by condensing 1 - chloroacetylamino - 2 - methyl - 4 - nitro- 5 - chlorobenzene with N,N - dimethyl - hydrazine and reducing the nitro group in the product obtained. Reference has been directed by the Comptroller to Specifications 914,074 and 994,482. |
