| Not official USP-NF text | ||||
| METHOTREXATE | ||||
| PF | LGS# | Brand | Type of Test | Additional Information |
| 0(0) | L1 | LiChrosorb RP-18 | Assay and Related Compounds | 4.6 mm x 25 cm |
| 18(4) | L1 | Spherisorb ODS1 | Chromatographic purity | See Assay |
| 17(3) | G43 | None Cited | Organic volat. impurities | See Method V  467 |