| Not official USP-NF text | ||||
| ETHOSUXIMIDE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 25(5) | L1 | MicroBondapak C18 | Assay | NULL |
| 7(4) | S1A | Chromosorb W-AW-DMCS | Limit of . . . . . . . . . | 2-ethyl-2-methylsuccinic anhydride & other imp.; brand cit. in Reagents section; G5 phase, USP X |
| 25(5) | L1 | MicroBondapak C18 | Limit of . . . . . . . . . | 2-ethyl-2-methylsuccinic acid and other impurities |
| 16(4) | G27 | None Cited | Organic volat. impurities | See Method I  467 |