Carfentrazone-ethyl Impurity 26
CAS No. 224167-51-5
Chemical Formula : C16H16Cl2F3N3O4
STD No. RM451326C

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Carfentrazone-ethyl Impurity 28
CAS No. 124653-41-4
Chemical Formula : C13H10ClF4N3O3
STD No. RM451328C