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				| 4-Ethyl-2,3-dioxo-piperazine |  |  |  | 4-Ethyl-2,3-dioxo-piperazine |  |  |  | 59702-31-7 |  |  |  | The important intermediate of piperacillin and cefoperazone and cefbuperazone |  |  |  | assay not less than99% |  
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							| Industrial field | pharmaceutical |  |  | 
				
				
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										| There are no existing companies to distribute selected chemical product |  |  |  |  |  |  |