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Pharmaceutical Reference Standards

Metformin HCl

Picture of Metformin HCl
CAT No: SZ-M018000
CAS No: 1115-70-4
Mol.F. : C4H11N5 : HCl
Mol.Wt. : 129.2 : 36.5
Inv. Status: In Stock
Rel. CAT No : SZ-M018018,
SZ-M018000
CAS No:1115-70-4
Mol.F.: C4H11N5 : HCl
Mol.Wt.: 129.2 : 36.5
Inv. Status: In Stock

Metformin EP Impurity A

Picture of Metformin EP Impurity A
CAT No: SZ-M018001
CAS No: 461-58-5
Mol.F. : C2H4N4
Mol.Wt. : 84.1
Inv. Status: In Stock
SZ-M018001
CAS No:461-58-5
Mol.F.: C2H4N4
Mol.Wt.: 84.1
Inv. Status: In Stock

Metformin EP Impurity B

Picture of Metformin EP Impurity B
CAT No: SZ-M018002
CAS No: 2959-04-8
Mol.F. : C4H8N8 : HCl
Mol.Wt. : 168.2 : 36.5
Inv. Status: In Stock
Rel. CAS No : 4405-08-7 (free base)
SZ-M018002
CAS No:2959-04-8
Mol.F.: C4H8N8 : HCl
Mol.Wt.: 168.2 : 36.5
Inv. Status: In Stock
Rel. CAS No : 4405-08-7 (free base)

Metformin EP Impurity C

Picture of Metformin EP Impurity C
CAT No: SZ-M018003
CAS No: 1985-46-2
Mol.F. : C5H10N6
Mol.Wt. : 154.2
Inv. Status: In Stock
SZ-M018003
CAS No:1985-46-2
Mol.F.: C5H10N6
Mol.Wt.: 154.2
Inv. Status: In Stock

Metformin EP Impurity D

Picture of Metformin EP Impurity D
CAT No: SZ-M018004
CAS No: 108-78-1
Mol.F. : C3H6N6
Mol.Wt. : 126.1
Inv. Status: In Stock
SZ-M018004
CAS No:108-78-1
Mol.F.: C3H6N6
Mol.Wt.: 126.1
Inv. Status: In Stock

Metformin EP Impurity E (Sulfate salt)

Picture of Metformin EP Impurity E (Sulfate salt)
CAT No: SZ-M018005
CAS No: 36801-25-9
Mol.F. : C3H9N5 : H2SO4
Mol.Wt. : 115.1 : 98.1
Inv. Status: In Stock
Rel. CAS No : 1609-00-3 (free base) ; 1674-62-0 (HCl salt)
SZ-M018005
CAS No:36801-25-9
Mol.F.: C3H9N5 : H2SO4
Mol.Wt.: 115.1 : 98.1
Inv. Status: In Stock
Rel. CAS No : 1609-00-3 (free base) ; 1674-62-0 (HCl salt)

Metformin EP Impurity F

Picture of Metformin EP Impurity F
CAT No: SZ-M018010
CAS No: 506-59-2
Mol.F. : C2H7N : HCl
Mol.Wt. : 45.09 : 36.5
Inv. Status: In Stock
SZ-M018010
CAS No:506-59-2
Mol.F.: C2H7N : HCl
Mol.Wt.: 45.09 : 36.5
Inv. Status: In Stock

Metformin EP Impurity E (HCl salt)

Picture of Metformin EP Impurity E (HCl salt)
CAT No: SZ-M018011
CAS No: 1674-62-0
Mol.F. : C3H9N5 : HCl
Mol.Wt. : 115.1 : 36.5
Inv. Status: In Stock
Rel. CAS No : 1609-00-3 (free base) ; 36801-25-9 (Sulfate salt)
SZ-M018011
CAS No:1674-62-0
Mol.F.: C3H9N5 : HCl
Mol.Wt.: 115.1 : 36.5
Inv. Status: In Stock
Rel. CAS No : 1609-00-3 (free base) ; 36801-25-9 (Sulfate salt)

Metformin Hydroxy Analog 1

Picture of Metformin Hydroxy Analog 1
CAT No: SZ-M018012
CAS No: 926-72-7
Mol.F. : C2H6N4O : HCl
Mol.Wt. : 102.1 : 36.5
Inv. Status: In Stock
SZ-M018012
CAS No:926-72-7
Mol.F.: C2H6N4O : HCl
Mol.Wt.: 102.1 : 36.5
Inv. Status: In Stock

Metformin Hydroxy Analog 2

Picture of Metformin Hydroxy Analog 2
CAT No: SZ-M018013
CAS No: 98026-16-5
Mol.F. : C4H10N4O
Mol.Wt. : 130.2
Inv. Status: In Stock
SZ-M018013
CAS No:98026-16-5
Mol.F.: C4H10N4O
Mol.Wt.: 130.2
Inv. Status: In Stock

Methylamine Solution

Picture of Methylamine Solution
CAT No: SZ-M018014
CAS No: 74-89-5
Mol.F. : CH5N
Mol.Wt. : 31.1
Inv. Status: In Stock
SZ-M018014
CAS No:74-89-5
Mol.F.: CH5N
Mol.Wt.: 31.1
Inv. Status: In Stock

N’-(Aminoiminomethyl)-N,N-dimethylurea

Picture of N’-(Aminoiminomethyl)-N,N-dimethylurea
CAT No: SZ-M018015
CAS No: NA
Mol.F. : C4H10N4O : HCl
Mol.Wt. : 130.2 : 36.5
Inv. Status: In Stock
SZ-M018015
CAS No:NA
Mol.F.: C4H10N4O : HCl
Mol.Wt.: 130.2 : 36.5
Inv. Status: In Stock

N,N-Dimethylcarbamic Acid

Picture of N,N-Dimethylcarbamic Acid
CAT No: SZ-M018016
CAS No: 7260-94-8
Mol.F. : C3H7NO2
Mol.Wt. : 89.1
Inv. Status: Custom Synthesis
SZ-M018016
CAS No:7260-94-8
Mol.F.: C3H7NO2
Mol.Wt.: 89.1
Inv. Status: Custom Synthesis

Metformin

Picture of Metformin
CAT No: SZ-M018018
CAS No: 657-24-9
Mol.F. : C4H11N5
Mol.Wt. : 129.2
Inv. Status: Under Synthesis
Rel. CAS No : 1115-70-4 (HCl salt)
Rel. CAT No : SZ-M018000,
SZ-M018018
CAS No:657-24-9
Mol.F.: C4H11N5
Mol.Wt.: 129.2
Inv. Status: Under Synthesis
Rel. CAS No : 1115-70-4 (HCl salt)

Metformin Impurity 2

Picture of Metformin Impurity 2
CAT No: SZ-M018020
CAS No: 13452-82-9
Mol.F. : C5H10N6
Mol.Wt. : 154.2
Inv. Status: Custom Synthesis
Rel. CAS No : 58892-16-3 (HCl salt) ; 16274-39-8 (XHCl salt)
SZ-M018020
CAS No:13452-82-9
Mol.F.: C5H10N6
Mol.Wt.: 154.2
Inv. Status: Custom Synthesis
Rel. CAS No : 58892-16-3 (HCl salt) ; 16274-39-8 (XHCl salt)

Metformin Impurity 3

Picture of Metformin Impurity 3
CAT No: SZ-M018021
CAS No: 4245-76-5
Mol.F. : C2H6N4O2
Mol.Wt. : 118.1
Inv. Status: Custom Synthesis
SZ-M018021
CAS No:4245-76-5
Mol.F.: C2H6N4O2
Mol.Wt.: 118.1
Inv. Status: Custom Synthesis

Metformin Impurity 4

Picture of Metformin Impurity 4
CAT No: SZ-M018023
CAS No: 58228-69-6
Mol.F. : C4H7N5
Mol.Wt. : 125.1
Inv. Status: Custom Synthesis
SZ-M018023
CAS No:58228-69-6
Mol.F.: C4H7N5
Mol.Wt.: 125.1
Inv. Status: Custom Synthesis

Metformin Impurity 5

Picture of Metformin Impurity 5
CAT No: SZ-M018024
CAS No: 847373-57-3
Mol.F. : C4H7N5
Mol.Wt. : 125.1
Inv. Status: Custom Synthesis
SZ-M018024
CAS No:847373-57-3
Mol.F.: C4H7N5
Mol.Wt.: 125.1
Inv. Status: Custom Synthesis

Metformin Impurity 6

Picture of Metformin Impurity 6
CAT No: SZ-M018025
CAS No: 1312706-18-5
Mol.F. : C15H17NO4
Mol.Wt. : 275.3
Inv. Status: Custom Synthesis
SZ-M018025
CAS No:1312706-18-5
Mol.F.: C15H17NO4
Mol.Wt.: 275.3
Inv. Status: Custom Synthesis

Metformin Impurity 7

Picture of Metformin Impurity 7
CAT No: SZ-M018026
CAS No: 1312706-19-6
Mol.F. : C15H17NO4
Mol.Wt. : 275.3
Inv. Status: Custom Synthesis
SZ-M018026
CAS No:1312706-19-6
Mol.F.: C15H17NO4
Mol.Wt.: 275.3
Inv. Status: Custom Synthesis

Stable Isotopes And Metabolites

Metformin d-6

Picture of Metformin d-6
CAT No: SZ-M018D01
CAS No: 1185166-01-1
Mol.F. : C4H5D6N5
Mol.Wt. : 135.2
Inv. Status: In Stock
SZ-M018D01
CAS No:1185166-01-1
Mol.F.: C4H5D6N5
Mol.Wt.: 135.2
Inv. Status: In Stock

Possible Nitroso Standards

Metformin Nitroso Impurity

Picture of Metformin Nitroso Impurity
CAT No: SZ-M018017
CAS No: NA
Mol.F. : C4H10N6O
Mol.Wt. : 158.2
Inv. Status: Under Synthesis
SZ-M018017
CAS No:NA
Mol.F.: C4H10N6O
Mol.Wt.: 158.2
Inv. Status: Under Synthesis

N-Nitroso Metformin EP Impurity A

Picture of N-Nitroso Metformin EP Impurity A
CAT No: SZ-M018022
CAS No: NA
Mol.F. : C2H3N5O
Mol.Wt. : 113.1
Inv. Status: Custom Synthesis
SZ-M018022
CAS No:NA
Mol.F.: C2H3N5O
Mol.Wt.: 113.1
Inv. Status: Custom Synthesis