Metformin Impurity

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Metformin Impurity A, B, C, D, E, F, G, H........
Metformin Related compound A, B, C, D, E, F, G, H........
Metformin HCl working standard

• CAS No. 1115-70-4
• C4H11N5. HCl M.W. 129.17 36.46

N,N-Dimethyl Melamine

• C6H12N8 M.W. 196.22

Metformin Impurity F

• C4H12N6 M.W. 144.18

Metformin Hydroxy Analog 2

• C4H10N4O M.W. 130.15

Metformin EP Impurity C

• CAS No. 1985-46-2
• C5H10N6 M.W. 154.18

Metformin Hydroxy Analog 1

• C2H6N4O M.W. 102.10

Metformin EP Impurity A (Cyanoguanidine)

• CAS No. 461-58-5
• C2H4N4 M.W. 84.08

Metformin EP Impurity E Sulfate

• CAS No. 36801-25-9
• C3H9N5. H2O4S M.W. 115.14 98.08

Metformin EP Impurity B Dinitrate

• CAS No. 4405-08-7 (free base)
• C4H8N8. 2 HNO3 M.W. 168.16 2 63.01

Metformin EP Impurity F HCl (Dimethylamine HCl)

• CAS No. 506-59-2
• C2H7N. HCl M.W. 45.08 36.46