Methotrexate

Case No: 13746-89-9 Chemical Formula: N4O12Zr Exact Mass: 337.86 Molecular Weight: 339.24 m/z: 337.86 (100.0%), 341.86 (33.8%), 339.86 (33.3%), 338.86 (21.8%), 343.86 (5.4%), 339.86 (2.5%), 338.85 (1.5%) Elemental Analysis: N, 16.52; O, 56.59; Zr, 26.89

Case No: 95-45-4 Chemical Formula: C₄H₈N₂O₂ Exact Mass: 116.06 Molecular Weight: 116.12 m/z: 116.06 (100.0%), 117.06 (4.3%) Elemental Analysis: C, 41.37; H, 6.94; N, 24.13; O, 27.56

Case No: 106-47-8 Chemical Formula: C6H6ClN Exact Mass: 127.02 Molecular Weight: 127.57 m/z: 127.02 (100.0%), 129.02 (32.0%), 128.02 (6.5%), 130.02 (2.1%) Elemental Analysis: C, 56.49; H, 4.74; Cl, 27.79; N, 10.98

Chemical Formula: C7H9N Exact Mass: 107.07 Molecular Weight: 107.16 m/z: 107.07 (100.0%), 108.08 (7.6%) Elemental Analysis: C, 78.46; H, 8.47; N, 13.07