MTX02: Methotrexate EP Impurity B

MTX02: Methotrexate EP Impurity B

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Methotrexate EP Impurity B ;

Methotrexate USP Related Compound B ;

N-Desmethyl Methotrexate ;

Aminopteridine ;

Aminopterin ;

4-Aminofolic acid ;

4-Aminopteroyl-L-glutamic acid ;

(2S)-2-[[4-[[(2,4-diaminopteridin-6-yl)methyl]amino]benzoyl]amino]pentanedioic acid ;

CAS # 54-62-6 ;

C19H20N8O5 ;

MW: 440.41 ;

Impurity and metabolite of methotrexate ;