THEOPHYLLINE

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Impurity Standards

Theophylline Impurity 9

CAT No.-

CAS No.42772-85-0

Mol. F.C9H12O4S

Mol. W.216.25

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Impurity Standards

Theophylline Impurity 10

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CAS No.40258-78-4

Mol. F.C4H7BrO2

Mol. W.167.00

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Impurity Standards

Theophylline Impurity 11

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CAS No.24442-57-7

Mol. F.C4H6Br2O2

Mol. W.245.90

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Impurity Standards

Theophylline Impurity 12

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CAS No.-

Mol. F.C11H12N4O4

Mol. W.264.24

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Impurity Standards

Theophylline Impurity 13

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CAS No.-

Mol. F.C7H10N4O2

Mol. W.182.18

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Impurity Standards

Theophylline Impurity 6

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CAS No.81781-90-0

Mol. F.C16H17ClN4O2

Mol. W.332.79

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THEOPHYLLINE

8-Benzyl Theophylline

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CAS No.2879-15-4

Mol. F.C14H14N4O2

Mol. W.270.29

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Impurity Standards

Theophylline Impurity 7

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CAS No.60797-68-4

Mol. F.C7H10N4O3

Mol. W.198.18

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Isotope Labelled Compounds

Etofylline-d6

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CAS No.519-37-9 (non-labelled)

Mol. F.C9H6D6N4O3

Mol. W.230.26

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Impurity Standards

Theophylline Impurity 8

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CAS No.5309-70-6

Mol. F.C4H5BrO2

Mol. W.164.99

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