Edaravone Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Edaravone Bis-pyrazolone Edaravone

Edaravone Bis-pyrazolone

VE0014686 177415-76-8 (enol form) | 7477-67-0 (ketone form)
Edaravone Dimer N-Oxide Edaravone

Edaravone Dimer N-Oxide

VE0011335 N/A
Edaravone Glucuronide Edaravone

Edaravone Glucuronide

VE0014683 67566-02-3
Edaravone Impurity 1 Edaravone

Edaravone Impurity 1

VE0017544 1242471-40-4
Edaravone Impurity 1 (Na Salt) Edaravone

Edaravone Impurity 1 (Na Salt)

VE0014695 N/A
Edaravone Impurity 10 Edaravone

Edaravone Impurity 10

VE0014672 2061958-41-4
Edaravone Impurity 11 Edaravone

Edaravone Impurity 11

VE0014673 710307-89-4
Edaravone Impurity 12 Edaravone

Edaravone Impurity 12

VE0014674 82772-85-8 (ketone form) | 2055116-47-5 (enol form)
Edaravone Impurity 18 Edaravone

Edaravone Impurity 18

VE0019762 N/A
Edaravone Impurity 19 Edaravone

Edaravone Impurity 19

VE0014677 122395-42-0
Edaravone Impurity 2 Edaravone

Edaravone Impurity 2

VE0014681 N/A
Edaravone Impurity 2 (2Na Salt) Edaravone

Edaravone Impurity 2 (2Na Salt)

VE0014676 N/A
Edaravone Impurity 20 Edaravone

Edaravone Impurity 20

VE0014678 N/A
Edaravone Impurity 21 Edaravone

Edaravone Impurity 21

VE0014679 N/A
Edaravone Impurity 22 Edaravone

Edaravone Impurity 22

VE0014680 69560-52-7 (imine form) | 305379-24-2 (enamine form)
Edaravone Impurity 27 Edaravone

Edaravone Impurity 27

VE0014684 1086213-77-5
Edaravone Impurity 28 Edaravone

Edaravone Impurity 28

VE0014688 14575-62-3
Edaravone Impurity 3 (Na Salt) Edaravone

Edaravone Impurity 3 (Na Salt)

VE0014691 N/A
Edaravone Impurity 30 Edaravone

Edaravone Impurity 30

VE0014692 50706-00-8
Edaravone Impurity 8 Edaravone

Edaravone Impurity 8

VE0014671 27349-35-5
Edaravone Impurity 9 Edaravone

Edaravone Impurity 9

VE0014694 19735-89-8
Edaravone Impurity P3 Edaravone

Edaravone Impurity P3

VE0020239 1323485-71-7
Edaravone Impurity P3 (Sodium Salt) Edaravone

Edaravone Impurity P3 (Sodium Salt)

VE0020255 1322767-63-4
Edaravone N-Oxide Edaravone

Edaravone N-Oxide

VL4530001 152494-76-3
Edaravone Trimer Impurity Edaravone

Edaravone Trimer Impurity

VE0011334 68195-63-1
Edaravone-D5 Edaravone

Edaravone-D5

DVE00568 1228765-67-0
Edaravone-D5 Glucuronide (Na Salt) Edaravone

Edaravone-D5 Glucuronide (Na Salt)

DVE00569 N/A
(E)-3-Methyl-1-phenyl-4-(1-(1-phenylhydrazinyl)buta-1,3-dien-2-yl)-1H-pyrazol-5-ol Edaravone

(E)-3-Methyl-1-phenyl-4-(1-(1-phenylhydrazinyl)buta-1,3-dien-2-yl)-1H-pyrazol-5-ol

VE0019763 N/A
2,4-Dihydro-4,4-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-5-methyl-2-phenyl-3H-pyrazol-3-one Edaravone

2,4-Dihydro-4,4-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-5-methyl-2-phenyl-3H-pyrazol-3-one

VE0019759 124009-63-8
3-Methyl-1-phenyl-1H-pyrazole-4,5-dione Edaravone

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione

VE0019761 881-05-0