首页>
外国专利>
A method for the production of 2,6,6 - trim ethyl cyclo hexene - (2) - dione - (1,4) and 2,6,6 - trim ethyl cyclo hexane dione - (1,4) or the mono ketals
A method for the production of 2,6,6 - trim ethyl cyclo hexene - (2) - dione - (1,4) and 2,6,6 - trim ethyl cyclo hexane dione - (1,4) or the mono ketals
