2019??12??23???????????????????????????????Prima Chemicals??????????????????????й???1-????-3-???-5-?????????1-Phenyl-3- Methyl-5-Pyrazolone??????????????????顣????????漰?????????2933???μ??????????????????????2018??4??1???2019??6??30???15???￡????????????2015??4???2016??3???2016??4???2017??3???2017??4???2018??3??????????????

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http://www.dgtr.gov.in/sites/default/files/Pyrazolone%20initiation%20Notification.pdf