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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) 22H26N8O7(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

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

Methotrexate Impurity F (Isomer)

  • CAT Number DCTI-C-1243
  • CAS Number 51865-79-3
  • Molecular Formula C20H22N8O5
  • Molecular Weight 454.45

Methotrexate Impurity H

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

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)

Methotrexate γ-Ethyl Ester

  • CAT NUMBER DCTI-C-3084
  • CAS NUMBER 65148-64-3 (Free base)
  • MOLECULAR FORMULA C24H27F3N8O7 (with Salt); C22H26N8O5 (Free Acid)
  • MOLECULAR WEIGHT 596.52 (With Salt); 482.50 (Free Acid)

(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

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