CAS Number: 52980-68-4

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity L (N-(4-Methylaminobenzoyl)-L-Glutamic Acid)

Molecular Formula: C13H16N2O5

Molecular Weight: 280.28

CAS Number: 4271-30-1

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity K (Folinic Acid Impurity A)

Molecular Formula: C12H14N2O5

Molecular Weight: 266.25

CAS Number: 34378-65-9

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity J

Molecular Formula: C22H26N8O5

Molecular Weight: 482.5

CAS Number: N/A

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity I Sodium Salt (Methotrexate-1-(Monomethyl Ester Sodium Salt))

Molecular Formula: C21H23N8O5. Na

Molecular Weight: 467.47 22.99

CAS Number: 66147-29-3

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity I (Methotrexate-1-Monomethyl Ester)

Molecular Formula: C21H24N8O5

Molecular Weight: 468.47

CAS Number: 67022-39-3

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity H (Methotrexate-5-Monomethyl Ester)

Molecular Formula: C21H24N8O5

Molecular Weight: 468.48

CAS Number: N/A

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity G

Molecular Formula: C28H29N9O6

Molecular Weight: 587.6

CAS Number: 19741-14-1

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity E

Molecular Formula: C15H15N7O2

Molecular Weight: 325.33

CAS Number: 5623-18-7

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity D

Molecular Formula: C15H14N6O3

Molecular Weight: 326.32

CAS Number: N/A

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity C

Molecular Formula: C20H21N7O6

Molecular Weight: 455.43

CAS Number: 54-62-6

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity B

Molecular Formula: C19H20N8O5

Molecular Weight: 440.42

CAS Number: 945-24-4

Alternate CAS#:

Chemical Name: Methotrexate EP Impurity A

Molecular Formula: C7H8N6O

Molecular Weight: 192.18