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Current Position： > Product > Drug Impurities > methotrexate（amethopterin）
Methotrexate EP Impurity C（Amethopterin EP Impurity C）
Catalog No: PI20029004     Product Name: Methotrexate EP Impurity C（Amethopterin EP Impurity C）
CAS No:N/A||Chemical Formula:C20H21N7O6||Molecular Weight:455.43100||Exact Mass:455.15533||(2S)-2-[[4-[[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)-methyl]methylam……
Methotrexate EP Impurity D（Amethopterin EP Impurity D）
Catalog No: PI20029005     Product Name: Methotrexate EP Impurity D（Amethopterin EP Impurity D）
CAS No:N/A||Chemical Formula:C15H14N6O3||Molecular Weight:326.31600||Exact Mass:326.11274||4-[[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl]methylamino]benzoi……
Methotrexate EP Impurity E（Amethopterin EP Impurity E）
Catalog No: PI20029006     Product Name: Methotrexate Impurity E（Amethopterin Impurity E）
CAS No:19741-14-1||Chemical Formula:C15H15N7O2||Molecular Weight:325.33200||Exact Mass:325.12872 ||4-[[(2,4-diaminopteridin-6-yl)methyl]methylamino]-benzoic aci……
Methotrexate EP Impurity H（Amethopterin EP Impurity H）
Catalog No: PI20029009     Product Name: Methotrexate EP Impurity H（Amethopterin EP Impurity H）
CAS No:N/A||Chemical Formula:C21H24N8O5 ||Molecular Weight:468.47400 Exact Mass 468.18697 ||Exact Mass:468.47400 Exact Mass 468.18697 ||(S)-2-(4-(((2,4-diaminop……
Methotrexate EP Impurity I（Amethopterin EP Impurity I）
Catalog No: PI20029010     Product Name: Methotrexate EP Impurity I（Amethopterin EP Impurity I）
CAS No:N/A||Chemical Formula:C21H24N8O5||Molecular Weight:468.47400||Exact Mass:468.18697 ||(S)-4-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)……
Methotrexate EP Impurity J（Amethopterin EP Impurity J）
Catalog No: PI20029011     Product Name: Methotrexate EP Impurity J（Amethopterin EP Impurity J）
CAS No:N/A||Chemical Formula:C22H26N8O5||Molecular Weight:482.50100||Exact Mass:482.20262||dimethyl (4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzoyl)……
Methotrexate EP Impurity K（Amethopterin EP Impurity K）
Catalog No: PI20029012     Product Name: Methotrexate Impurity K（Amethopterin Impurity K）
CAS No:5959-18-2 ||Chemical Formula:C12H14N2O5||Molecular Weight:266.25300||Exact Mass:266.09027 ||(4-aminobenzoyl)-D-glutamic acid
Methotrexate Impurity L(EP),Amethopterin Impurity L(EP)
Catalog No: PI20029013     Product Name: Methotrexate Impurity L(EP),Amethopterin Impurity L(EP)
CAS No:N/A||Chemical Formula:C13H16N2O5||Molecular Weight:280.28000||Exact Mass:280.10592||(2S)-2-[[4-(methylamino)benzoyl]amino]pentanedioic acid
Methotrexate Impurity 1,Amethopterin Impurity 1
Catalog No: PI20029031     Product Name: Methotrexate Impurity1,Amethopterin Impurity 1
CAS No:N/A||Chemical Formula:C22H27N9O4||Molecular Weight:481.51700||Exact Mass:481.2186||(R)-4-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)-5……
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