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QA021601
Theophylline-7-acetic Acid
Molecular Formula: C9H10N4O4
Molecular Weight: 238.2
CAS No.: 652-37-9
QC-C081892
8-Chlorotheophylline
Molecular Formula: C7H7ClN4O2
Molecular Weight: 214.61
CAS No.: 85-18-7
QT081502
Theophylline EP Impurity B;Pentoxifylline EP Impurity B
Molecular Formula: C6H6N4O2
Molecular Weight: 166.14
CAS No.: 1076-22-8
QT081503
Theophylline EP Impurity C;Caffeine EP Impurity B
Molecular Formula: C7H10N4O3
Molecular Weight: 198.18
CAS No.: 7597-60-6
QT081504
Theophylline EP Impurity D HCl;Diprophylline EP Impurity A;Theophyllidine
Molecular Formula: C6H10N4O.HCl
Molecular Weight: 154.17 36.46
CAS No.: 116131-08-9;6736-40-9 (free base)
QT081505
Theophylline EP Impurity E
Molecular Formula: C7H8N4O3
Molecular Weight: 196.16
CAS No.: 944-73-0
QT081506
Theophylline EP Impurity F;Diprophylline EP Impurity C;Etofylline
Molecular Formula: C9H12N4O3
Molecular Weight: 224.22
CAS No.: 519-37-9
QT081527
Theophylline Impurity 1
Molecular Formula: C9H10N4O3.C9H12N4O4
Molecular Weight: 222.20 240.22
CAS No.: 5614-53-9(aldehyde form),1429636-73-6(diol form)
QT081528
Theophylline Impurity 2
Molecular Formula: C6H6N4O2
Molecular Weight: 166.14
CAS No.: 6136-37-4
QT081529
Theophylline Impurity 3
Molecular Formula: C6H9N3O2
Molecular Weight: 155.15
CAS No.: 6642-31-5
QT081530
Theophylline Impurity 4
Molecular Formula: C5H5N5
Molecular Weight: 135.13
CAS No.: 20289-44-5
QT081531
Theophylline Impurity 5
Molecular Formula: C7H10N4O3
Molecular Weight: 198.18
CAS No.: NA
QT081532
Theophylline Impurity 6
Molecular Formula: C5H7N3O2
Molecular Weight: 141.13
CAS No.: NA
QT081533
Theophylline Nitroso Impurity 1
Molecular Formula: C6H8N4O3
Molecular Weight: 184.15
CAS No.: NA
QT081534
Theophylline Nitroso Impurity 2
Molecular Formula: C7H7N5O3
Molecular Weight: 209.16
CAS No.: NA
QT081535
Theophylline Nitroso Impurity 3
Molecular Formula: C7H7N5O3
Molecular Weight: 209.16
CAS No.: NA
QT081536
Theophylline Impurity 10
Molecular Formula: C8H12O4
Molecular Weight: 172.18
CAS No.: 29214-62-8
QT081537
Theophylline Impurity 37
Molecular Formula: C20H28N8O7
Molecular Weight: 492.49
CAS No.: NA
QT081538
Theophylline Impurity 38
Molecular Formula: C17H22N8O5
Molecular Weight: 418.41
CAS No.: NA
QT081539
Theophylline Impurity 39
Molecular Formula: C10H14N4O4
Molecular Weight: 254.25
CAS No.: 180262-60-6
QT081540
Theophylline Impurity 40
Molecular Formula: C9H16N4O3
Molecular Weight: 228.25
CAS No.: NA
QT081541
Theophylline-d6
Molecular Formula: C7H2D6N4O2
Molecular Weight: 186.2
CAS No.: 117490-39-8
QT081542
Theophylline Impurity 42
Molecular Formula: C17H20N8O5
Molecular Weight: 416.4
CAS No.: NA
QT081543
Theophylline Impurity 43
Molecular Formula: C6H14ClNO2
Molecular Weight: 167.63
CAS No.: 63125-83-7
QT081544
Theophylline Impurity 44
Molecular Formula: C16H17ClN4O2
Molecular Weight: 332.79
CAS No.: 81781-90-0
QT081545
Theophylline Impurity 45
Molecular Formula: C14H14N4O2
Molecular Weight: 270.29
CAS No.: 2879-15-4
QT081546
Theophylline Nitroso Impurity 4
Molecular Formula: C6H9N5O2
Molecular Weight: 183.17
CAS No.: NA
QT081547
Theophylline Nitroso Impurity 5
Molecular Formula: C4H12N4O
Molecular Weight: 132.17
CAS No.: 741659-46-1
QT081548
Theophylline Impurity 48
Molecular Formula: C23H25N5O3
Molecular Weight: 419.49
CAS No.: 33120-34-2
QT081549
Theophylline Nitroso Impurity 6
Molecular Formula: C7H9N5O4
Molecular Weight: 227.18
CAS No.: NA
