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Methotrexate Impurity D

API Category Methotrexate impurity
Appearance Brown hygroscopic Solid
CAT Number DCTI-C-1283
CAS Number 5623-18-7
IUPAC Name 4-(((2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl)(methyl)amino)benzoic acid
Molecular Formula C15H14N6O3
Molecular Weight 326.31
Solubility DMSO
Storage Condition 2-8°C
Synonyms Metfol-B, Methotrexate EP Impurity D; NSC 408937
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Methotrexate Impurity H

  • CAT Number DCTI-C-1408
  • CAS Number 67022-39-3
  • Molecular Formula C21H24N8O5
  • Molecular Weight 468.47

Methotrexate Impurity C

  • CAT Number DCTI-C-1282
  • CAS Number 2410-93-7
  • Molecular Formula C20H21N7O6
  • Molecular Weight 455.42

(S)-5-ethoxy-4-(4-(methylamino)benzamido)-5-oxopentanoic acid

  • CAT NUMBER DCTI-C-3057
  • CAS NUMBER NA
  • MOLECULAR FORMULA C15H20N2O5
  • MOLECULAR WEIGHT 308.33

Methotrexate Impurity I

  • CAT Number DCTI-C-1413
  • CAS Number 66147-29-3 (free base)
  • Molecular Formula C21H24N8O5 (Free base) 22H26N8O7(Salt)
  • Molecular Weight 468.47 (Free base) 514.50 (Salt)

Methotrexate Impurity B

  • CAT Number DCTI-C-1412
  • CAS Number 54-62-6
  • Molecular Formula C19H20N8O5
  • Molecular Weight 440.41

(S)-5-ethoxy-2-(4-(methylamino)benzamido)-5-oxopentanoic acid

  • CAT NUMBER DCTI-C-3058
  • CAS NUMBER NA
  • MOLECULAR FORMULA C15H20N2O5
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