CAS Number: 60388-53-6

Alternate CAS#:

Chemical Name: Methotrexate Impurity 3

Molecular Formula: C20H22N8O5

Molecular Weight: 454.45

CAS Number: 80407-56-3 (free base)

Alternate CAS#:

Chemical Name: Methotrexate Impurity 2 Trifluoroacetate

Molecular Formula: C21H27N9O3. C2HF3O2

Molecular Weight: 453.51 114.02

CAS Number: 80407-56-3

Alternate CAS#:

Chemical Name: Methotrexate Impurity 2

Molecular Formula: C21H27N9O3

Molecular Weight: 453.51

CAS Number: 125583-33-7

Alternate CAS#:

Chemical Name: Fampridine Impurity 1 (Dalfampridine Impurity 1)

Molecular Formula: C6H5ClN2O

Molecular Weight: 156.57

CAS Number: 71074-44-7 (free base)

Alternate CAS#:

Chemical Name: Methotrexate Impurity 1 HCl

Molecular Formula: C22H27N9O4. HCl

Molecular Weight: 481.52

CAS Number: 73610-81-8 (free amine)

Alternate CAS#:

Chemical Name: Methotrexate Tetraglutamate Trifluoroacetate

Molecular Formula: C35H43N11O14. C2HF3O2

Molecular Weight: 841.78

CAS Number: 41600-14-0 (free amine)

Alternate CAS#:

Chemical Name: Methotrexate Triglutamate Trifluoroacetate

Molecular Formula: C30H36N10O11. C2HF3O2

Molecular Weight: 712.67

CAS Number: 59-05-2 (free amine)

Alternate CAS#:

Chemical Name: Methotrexate Heptaglutamate Trifluoroacetate

Molecular Formula: C50H64N14O23. C2HF3O2

Molecular Weight: 1229.14

CAS Number: 41600-13-9 (free amine)

Alternate CAS#:

Chemical Name: Methotrexate Diglutamate Trifluoroacetate

Molecular Formula: C25H29N9O8. C2HF3O2

Molecular Weight: 583.55

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