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QM202401
Methotrexate EP Impurity A
Molecular Formula: C7H8N6O
Molecular Weight: 192.18
CAS No.: 945-24-4;73978-41-3(HCl salt)
QM202402
Methotrexate EP Impurity B;Methotrexate USP Related Compound B
Molecular Formula: C19H20N8O5
Molecular Weight: 440.41
CAS No.: 54-62-6
QM202403
Methotrexate EP Impurity C;Methotrexate USP Related Compound C
Molecular Formula: C20H21N7O6
Molecular Weight: 455.42
CAS No.: 2410-93-7
QM202404
Methotrexate EP Impurity D
Molecular Formula: C15H14N6O3
Molecular Weight: 326.31
CAS No.: 5623-18-7
QM202405
Methotrexate EP Impurity E;Methotrexate USP Related Compound E
Molecular Formula: C15H15N7O2
Molecular Weight: 325.33
CAS No.: 19741-14-1;70844-48-3(hemihydrochloride)
QM202406
Methotrexate EP Impurity F
Molecular Formula: C20H22N8O5
Molecular Weight: 454.44
CAS No.: 51865-79-3
QM202407
7-Hydroxy Methotrexate
Molecular Formula: C20H22N8O6
Molecular Weight: 470.44
CAS No.: 5939-37-7
QM202408
Methotrexate EP Impurity G
Molecular Formula: C28H29N9O6
Molecular Weight: 587.59
CAS No.: 2519848-42-9
QM202409
Methotrexate EP Impurity H;Methotrexate 5-methyl ester;Methotrexate USP Related Compound H
Molecular Formula: C21H24N8O5
Molecular Weight: 468.47
CAS No.: 67022-39-3
QM202410
Methotrexate
Molecular Formula: C20H22N8O5
Molecular Weight: 454.44
CAS No.: 59-05-2;133073-73-1(xH2O);7413-34-5(2Na salt)
QM202411
Methotrexate EP Impurity I;Methotrexate 1-methyl ester;Methotrexate USP Related Compound I
Molecular Formula: C21H24N8O5
Molecular Weight: 468.47
CAS No.: 66147-29-3
QM202412
Methotrexate EP Impurity J;Methotrexate dimethyl ester
Molecular Formula: C22H26N8O5
Molecular Weight: 482.49
CAS No.: 34378-65-9
QM202413
Methotrexate EP Impurity K; Folic Acid EP Impurity A;Calcium Levofolinate EP Impurity A;Calcium Folinate Hydrate EP Impurity A
Molecular Formula: C12H14N2O5
Molecular Weight: 266.25
CAS No.: 4271-30-1
QM202414
Methotrexate EP Impurity L
Molecular Formula: C13H16N2O5
Molecular Weight: 280.28
CAS No.: 52980-68-4;57444-71-0(2Na salt)
QM202415
Methotrexate Impurity 15
Molecular Formula: C4H8N6.H2O4S
Molecular Weight: 140.15 98.08
CAS No.: 5392-28-9;49647-58-7(xH2SO4 salt);1004-74-6(free base)
QM202416
Methotrexate Impurity 16
Molecular Formula: C7H7BrN6 HBr
Molecular Weight: 255.07 80.92
CAS No.: 52853-40-4;59368-16-0(free base)
QM202417
Methotrexate Nitroso Impurity 1
Molecular Formula: C13H13N3O6Zn
Molecular Weight: 372.64
CAS No.: NA
QM202418
Methotrexate Nitroso Impurity 2
Molecular Formula: C13H15N3O6
Molecular Weight: 309.27
CAS No.: NA
QM202419
Methotrexate Nitroso Impurity 3
Molecular Formula: C4H10N2O
Molecular Weight: 102.13
CAS No.: NA
QM202420
Methotrexate Impurity 20
Molecular Formula: C22H27N9O4
Molecular Weight: 481.51
CAS No.: 71074-44-7
QM202422
Methotrexate Impurity 22
Molecular Formula: C13H14N2O5Zn
Molecular Weight: 343.64
CAS No.: 52980-68-4(free base)
QM202423
Methotrexate Impurity 23
Molecular Formula: C4H8N6O
Molecular Weight: 156.15
CAS No.: NA
QM202424
Methotrexate Nitroso Impurity 4
Molecular Formula: C4H6N6O
Molecular Weight: 154.13
CAS No.: NA
QM202425
Methotrexate Impurity 25
Molecular Formula: C4H5N6
Molecular Weight: 137.12
CAS No.: NA
QM202426
Methotrexate Impurity 26
Molecular Formula: C32H42N8O15
Molecular Weight: 778.72
CAS No.: NA
QM202427
Methotrexate Impurity 27
Molecular Formula: C32H42N8O15
Molecular Weight: 778.72
CAS No.: NA
QM202428
Methotrexate Impurity 28
Molecular Formula: C17H24N2O5
Molecular Weight: 336.39
CAS No.: 2378-95-2
QM202429
Methotrexate Impurity 29
Molecular Formula: C7H8N6O
Molecular Weight: 192.18
CAS No.: 881-33-4
QM202430
Methotrexate Impurity 30
Molecular Formula: C7H8N6
Molecular Weight: 176.18
CAS No.: 708-74-7
QM202431
Methotrexate Impurity 31
Molecular Formula: C7H8N6
Molecular Weight: 176.18
CAS No.: 4215-07-0
