| Not official USP-NF text | ||||
| PHENYLBUTAZONE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 13(2) | L2 | Bondapak C18/Corasil | Assay | Pre-column |
| 13(2) | L7 | Partisil CCS/C8 | Assay | Analytical column. |
| 17(3) | G43 | None Cited | Organic volat. impurities | See Method V  467 |