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Home>Methotrexate>Methotrexate Impurity I
Methotrexate-DCTI-C-1413-daicelpharma
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Methotrexate Impurity I

API Category Methotrexate impurity
Appearance Hygroscopic Yellow Solid
CAT Number DCTI-C-1413
CAS Number 66147-29-3 (free base)
IUPAC Name (S)-4-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)-5-methoxy-5-oxopentanoic acid formate
Molecular Formula C21H24N8O5 (Free base) C22H26N8O7 (Salt)
Molecular Weight 468.47 (Free base) 514.50 (Salt)
Solubility DMSO
Storage Condition 2-8°C
Synonyms Methotrexate EP Impurity I; Methotrexate EP Impurity I Formate salt

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Methotrexate Impurity C

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Methotrexate Impurity B

  • CAT Number DCTI-C-1412
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Methotrexate-d3

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Methotrexate Impurity E

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Methotrexate Impurity H

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  • Molecular Formula C21H24N8O5
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Methotrexate Impurity A

  • CAT NUMBER DCTI-C-1778
  • CAS NUMBER 945-24-4(Free Base) ; 73978-41-3(HCl Salt)
  • MOLECULAR FORMULA C7H8N6O (Free base) C7H9ClN6O (Salt)
  • MOLECULAR WEIGHT 192.18 (Free base) 228.64 (Salt)
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