Theophylline EP Impurity D

Product Code:

TPY/1004

CAS Number:

116131-08-9 ; 6736-40-9

Molecular Formula:

C6H10N4O

Molecular Weight:

154.17

Synonyms : N-Methyl-5-(methylamino)-1H-imidazole-4-carboxamide HCl.

Theophylline EP Impurity E

Product Code:

TPY/1005

CAS Number:

944-73-0

Molecular Formula:

C7H8N4O3

Molecular Weight:

196.16

Synonyms : 1,3-Dimethyl-7,9-dihydro-1H-purine-2,6,8(3H)-trione.

Theophylline EP Impurity F

Product Code:

TPY/1006

CAS Number:

519-37-9

Molecular Formula:

C9H12N4O3

Molecular Weight:

224.22

Synonyms : 7-(2-Hydroxyethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione.

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