METFORMIN

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Impurity Standards

Metformin EP Impurity A (Cyanoguanidine)

CAT No.-

CAS No.461-58-5

Mol. F.C2H4N4

Mol. W.84.08

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Impurity Standards

Metformin Impurity 1

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CAS No.-

Mol. F.C6H15N9

Mol. W.213.25

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METFORMIN

Methylamine Solution 40 wt. % in H2O

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CAS No.74-89-5

Mol. F.CH5N

Mol. W.31.06

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METFORMIN

Hexyl biguanide HCl

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CAS No.28757-47-3

Mol. F.C8H19N5. HCl

Mol. W.185.28 36.46

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Impurity Standards

Metformin Impurity 4 HCl (3-Carbamimidoyl-1,1-Dimethylurea HCl)

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CAS No.118632-64-7 (freebase)

Mol. F.C4H10N4O. HCl

Mol. W.130.15 36.46

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Impurity Standards

Metformin Impurity 5

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CAS No.26690-75-5

Mol. F.C5H10N10

Mol. W.210.21

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