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Pharmaceutical Reference Standards

Famotidine

Picture of Famotidine
CAT No: SZ-F008001
CAS No: 76824-35-6
Mol.F. : C8H15N7O2S3
Mol.Wt. : 337.4
Inv. Status: Custom Synthesis
SZ-F008001
CAS No:76824-35-6
Mol.F.: C8H15N7O2S3
Mol.Wt.: 337.4
Inv. Status: Custom Synthesis

Famotidine EP Impurity A (2HCl salt)

Picture of Famotidine EP Impurity A (2HCl salt)
CAT No: SZ-F008002
CAS No: 88061-72-7
Mol.F. : C8H14N6S2 : 2(HCl)
Mol.Wt. : 258.4 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 124646-10-2 (free base) ; 76833-47-1 (HCl salt)
SZ-F008002
CAS No:88061-72-7
Mol.F.: C8H14N6S2 : 2(HCl)
Mol.Wt.: 258.4 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 124646-10-2 (free base) ; 76833-47-1 (HCl salt)

Famotidine EP Impurity B

Picture of Famotidine EP Impurity B
CAT No: SZ-F008003
CAS No: 89268-62-2
Mol.F. : C16H23N11O2S5
Mol.Wt. : 561.7
Inv. Status: Limited Stock
Rel. CAS No : 109467-08-5 (dimaleate salt)
Rel. CAT No : SZ-F008043, SZ-F008046,
SZ-F008003
CAS No:89268-62-2
Mol.F.: C16H23N11O2S5
Mol.Wt.: 561.7
Inv. Status: Limited Stock
Rel. CAS No : 109467-08-5 (dimaleate salt)

Famotidine EP Impurity C

Picture of Famotidine EP Impurity C
CAT No: SZ-F008004
CAS No: 76824-17-4
Mol.F. : C8H14N6O3S3 : HCl
Mol.Wt. : 338.4 : 36.4
Inv. Status: In Stock
SZ-F008004
CAS No:76824-17-4
Mol.F.: C8H14N6O3S3 : HCl
Mol.Wt.: 338.4 : 36.4
Inv. Status: In Stock

Famotidine EP Impurity D

Picture of Famotidine EP Impurity D
CAT No: SZ-F008005
CAS No: 76824-16-3
Mol.F. : C8H13N5OS2
Mol.Wt. : 259.3
Inv. Status: In Stock
SZ-F008005
CAS No:76824-16-3
Mol.F.: C8H13N5OS2
Mol.Wt.: 259.3
Inv. Status: In Stock

Famotidine EP Impurity E

Picture of Famotidine EP Impurity E
CAT No: SZ-F008006
CAS No: 129083-44-9
Mol.F. : C10H14N8S4
Mol.Wt. : 374.5
Inv. Status: Limited Stock
SZ-F008006
CAS No:129083-44-9
Mol.F.: C10H14N8S4
Mol.Wt.: 374.5
Inv. Status: Limited Stock

Famotidine EP Impurity F

Picture of Famotidine EP Impurity F
CAT No: SZ-F008007
CAS No: 107880-74-0
Mol.F. : C8H12N4O2S2
Mol.Wt. : 260.3
Inv. Status: In Stock
SZ-F008007
CAS No:107880-74-0
Mol.F.: C8H12N4O2S2
Mol.Wt.: 260.3
Inv. Status: In Stock

Famotidine EP Impurity G

Picture of Famotidine EP Impurity G
CAT No: SZ-F008008
CAS No: 76823-97-7
Mol.F. : C9H13N7S2
Mol.Wt. : 283.4
Inv. Status: In Stock
SZ-F008008
CAS No:76823-97-7
Mol.F.: C9H13N7S2
Mol.Wt.: 283.4
Inv. Status: In Stock

Famotidine EP Impurity H

Picture of Famotidine EP Impurity H
CAT No: SZ-F008009
CAS No: 88046-01-9
Mol.F. : C6H10N6S2 : 2(HCl)
Mol.Wt. : 230.3 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 106649-96-1 (free base)
SZ-F008009
CAS No:88046-01-9
Mol.F.: C6H10N6S2 : 2(HCl)
Mol.Wt.: 230.3 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 106649-96-1 (free base)

Famotidine EP Impurity I

Picture of Famotidine EP Impurity I
CAT No: SZ-F008010
CAS No: NA
Mol.F. : C8H14N6O4S3 : HCl
Mol.Wt. : 354.4 : 36.4
Inv. Status: Custom Synthesis
SZ-F008010
CAS No:NA
Mol.F.: C8H14N6O4S3 : HCl
Mol.Wt.: 354.4 : 36.4
Inv. Status: Custom Synthesis

Famotidine EP Impurity J

Picture of Famotidine EP Impurity J
CAT No: SZ-F008011
CAS No: 76824-14-1
Mol.F. : C9H14N4O2S2
Mol.Wt. : 274.4
Inv. Status: Custom Synthesis
SZ-F008011
CAS No:76824-14-1
Mol.F.: C9H14N4O2S2
Mol.Wt.: 274.4
Inv. Status: Custom Synthesis

Famotidine Sulfoxide

Picture of Famotidine Sulfoxide
CAT No: SZ-F008012
CAS No: 90237-03-9
Mol.F. : C8H15N7O3S3
Mol.Wt. : 353.4
Inv. Status: In Stock
SZ-F008012
CAS No:90237-03-9
Mol.F.: C8H15N7O3S3
Mol.Wt.: 353.4
Inv. Status: In Stock

Famotidine Impurity HCl

Picture of Famotidine Impurity HCl
CAT No: SZ-F008013
CAS No: 100599-91-5
Mol.F. : C5H8N4S : HCl
Mol.Wt. : 156.2 : 36.4
Inv. Status: Custom Synthesis
SZ-F008013
CAS No:100599-91-5
Mol.F.: C5H8N4S : HCl
Mol.Wt.: 156.2 : 36.4
Inv. Status: Custom Synthesis

Famotidine Methoxy Impurity

Picture of Famotidine Methoxy Impurity
CAT No: SZ-F008014
CAS No: 76823-94-4
Mol.F. : C9H15N5OS2
Mol.Wt. : 273.3
Inv. Status: Custom Synthesis
SZ-F008014
CAS No:76823-94-4
Mol.F.: C9H15N5OS2
Mol.Wt.: 273.3
Inv. Status: Custom Synthesis

Famotidine Cyanoethyl Impurity 

Picture of Famotidine Cyanoethyl Impurity 
CAT No: SZ-F008015
CAS No: 76823-93-3
Mol.F. : C8H11N5S2
Mol.Wt. : 241.3
Inv. Status: Custom Synthesis
SZ-F008015
CAS No:76823-93-3
Mol.F.: C8H11N5S2
Mol.Wt.: 241.3
Inv. Status: Custom Synthesis

Famotidine Chloromethyl Impurity

Picture of Famotidine Chloromethyl Impurity
CAT No: SZ-F008016
CAS No: 81152-53-6
Mol.F. : C5H7ClN4S
Mol.Wt. : 190.7
Inv. Status: Custom Synthesis
SZ-F008016
CAS No:81152-53-6
Mol.F.: C5H7ClN4S
Mol.Wt.: 190.7
Inv. Status: Custom Synthesis

Famotidine Adduct Impurity

Picture of Famotidine Adduct Impurity
CAT No: SZ-F008017
CAS No: 1994267-84-3
Mol.F. : C15H19N7O2S3
Mol.Wt. : 425.5
Inv. Status: In Stock
SZ-F008017
CAS No:1994267-84-3
Mol.F.: C15H19N7O2S3
Mol.Wt.: 425.5
Inv. Status: In Stock

3-Chloro-N-sulfamoylpropanimidamide Hydrochloride

Picture of 3-Chloro-N-sulfamoylpropanimidamide Hydrochloride
CAT No: SZ-F008020
CAS No: 106649-95-0
Mol.F. : C3H8ClN3O2S : HCl
Mol.Wt. : 185.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 106492-70-0 (free base)
SZ-F008020
CAS No:106649-95-0
Mol.F.: C3H8ClN3O2S : HCl
Mol.Wt.: 185.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 106492-70-0 (free base)

Famotidine Impurity 1

Picture of Famotidine Impurity 1
CAT No: SZ-F008021
CAS No: 154754-59-3
Mol.F. : C9H15N7O2S3
Mol.Wt. : 349.4
Inv. Status: Custom Synthesis
SZ-F008021
CAS No:154754-59-3
Mol.F.: C9H15N7O2S3
Mol.Wt.: 349.4
Inv. Status: Custom Synthesis

Famotidine Impurity 2

Picture of Famotidine Impurity 2
CAT No: SZ-F008022
CAS No: 95907-34-9
Mol.F. : C5H9ClN4OS
Mol.Wt. : 208.7
Inv. Status: Custom Synthesis
SZ-F008022
CAS No:95907-34-9
Mol.F.: C5H9ClN4OS
Mol.Wt.: 208.7
Inv. Status: Custom Synthesis

Famotidine - ETOH Impurity   

Picture of Famotidine - ETOH Impurity   
CAT No: SZ-F008023
CAS No: 2575516-74-2
Mol.F. : C10H17N7O3S3
Mol.Wt. : 379.5
Inv. Status: Custom Synthesis
Rel. CAS No : 2575516-75-3 (Maleate salt)
SZ-F008023
CAS No:2575516-74-2
Mol.F.: C10H17N7O3S3
Mol.Wt.: 379.5
Inv. Status: Custom Synthesis
Rel. CAS No : 2575516-75-3 (Maleate salt)

Famotidine - ETOH Impurity (Maleate salt)

Picture of Famotidine - ETOH Impurity (Maleate salt)
CAT No: SZ-F008024
CAS No: 2575516-75-3
Mol.F. : C10H17N7O3S3 : C4H4O4
Mol.Wt. : 379.5 : 116.1
Inv. Status: Custom Synthesis
Rel. CAS No : 2575516-74-2 (free base)
SZ-F008024
CAS No:2575516-75-3
Mol.F.: C10H17N7O3S3 : C4H4O4
Mol.Wt.: 379.5 : 116.1
Inv. Status: Custom Synthesis
Rel. CAS No : 2575516-74-2 (free base)

Famotidine Impurity 3

Picture of Famotidine Impurity 3
CAT No: SZ-F008025
CAS No: 13598-81-7
Mol.F. : H5N3O4S2
Mol.Wt. : 175.2
Inv. Status: Custom Synthesis
SZ-F008025
CAS No:13598-81-7
Mol.F.: H5N3O4S2
Mol.Wt.: 175.2
Inv. Status: Custom Synthesis

Famotidine Impurity 4

Picture of Famotidine Impurity 4
CAT No: SZ-F008026
CAS No: NA
Mol.F. : C6H11N5O4S2
Mol.Wt. : 281.3
Inv. Status: Custom Synthesis
SZ-F008026
CAS No:NA
Mol.F.: C6H11N5O4S2
Mol.Wt.: 281.3
Inv. Status: Custom Synthesis

Famotidine Impurity 5

Picture of Famotidine Impurity 5
CAT No: SZ-F008027
CAS No: NA
Mol.F. : C3H8N4O4S2
Mol.Wt. : 228.2
Inv. Status: Custom Synthesis
SZ-F008027
CAS No:NA
Mol.F.: C3H8N4O4S2
Mol.Wt.: 228.2
Inv. Status: Custom Synthesis

Famotidine Impurity 6

Picture of Famotidine Impurity 6
CAT No: SZ-F008028
CAS No: NA
Mol.F. : C3H6N2O3S
Mol.Wt. : 150.2
Inv. Status: Custom Synthesis
SZ-F008028
CAS No:NA
Mol.F.: C3H6N2O3S
Mol.Wt.: 150.2
Inv. Status: Custom Synthesis

Famotidine Impurity 7

Picture of Famotidine Impurity 7
CAT No: SZ-F008029
CAS No: 1384876-02-1
Mol.F. : C3H7N3O2S
Mol.Wt. : 149.2
Inv. Status: Custom Synthesis
SZ-F008029
CAS No:1384876-02-1
Mol.F.: C3H7N3O2S
Mol.Wt.: 149.2
Inv. Status: Custom Synthesis

Famotidine Impurity 8

Picture of Famotidine Impurity 8
CAT No: SZ-F008030
CAS No: 802257-93-8
Mol.F. : C3H6Cl2O4S
Mol.Wt. : 209.0
Inv. Status: Custom Synthesis
SZ-F008030
CAS No:802257-93-8
Mol.F.: C3H6Cl2O4S
Mol.Wt.: 209.0
Inv. Status: Custom Synthesis

Famotidine Impurity 9

Picture of Famotidine Impurity 9
CAT No: SZ-F008031
CAS No: NA
Mol.F. : C6H10Cl4O4S
Mol.Wt. : 320.0
Inv. Status: Custom Synthesis
SZ-F008031
CAS No:NA
Mol.F.: C6H10Cl4O4S
Mol.Wt.: 320.0
Inv. Status: Custom Synthesis

Famotidine Impurity 10

Picture of Famotidine Impurity 10
CAT No: SZ-F008032
CAS No: 57536-15-9
Mol.F. : C4H7N3S
Mol.Wt. : 129.2
Inv. Status: Custom Synthesis
SZ-F008032
CAS No:57536-15-9
Mol.F.: C4H7N3S
Mol.Wt.: 129.2
Inv. Status: Custom Synthesis

Famotidine Impurity 11

Picture of Famotidine Impurity 11
CAT No: SZ-F008033
CAS No: NA
Mol.F. : C6H10N6S2
Mol.Wt. : 230.3
Inv. Status: Custom Synthesis
SZ-F008033
CAS No:NA
Mol.F.: C6H10N6S2
Mol.Wt.: 230.3
Inv. Status: Custom Synthesis

Famotidine Impurity 12

Picture of Famotidine Impurity 12
CAT No: SZ-F008034
CAS No: 20166-91-0
Mol.F. : C5H8N4S2
Mol.Wt. : 188.3
Inv. Status: Custom Synthesis
SZ-F008034
CAS No:20166-91-0
Mol.F.: C5H8N4S2
Mol.Wt.: 188.3
Inv. Status: Custom Synthesis

Famotidine Impurity 13

Picture of Famotidine Impurity 13
CAT No: SZ-F008035
CAS No: NA
Mol.F. : C15H19N7O2S3
Mol.Wt. : 425.5
Inv. Status: Custom Synthesis
SZ-F008035
CAS No:NA
Mol.F.: C15H19N7O2S3
Mol.Wt.: 425.5
Inv. Status: Custom Synthesis

Famotidine Impurity 14

Picture of Famotidine Impurity 14
CAT No: SZ-F008036
CAS No: NA
Mol.F. : C6H12ClN3O2S
Mol.Wt. : 225.7
Inv. Status: Custom Synthesis
SZ-F008036
CAS No:NA
Mol.F.: C6H12ClN3O2S
Mol.Wt.: 225.7
Inv. Status: Custom Synthesis

Famotidine Impurity 15

Picture of Famotidine Impurity 15
CAT No: SZ-F008037
CAS No: NA
Mol.F. : C6H12Cl2N4O2S
Mol.Wt. : 275.1
Inv. Status: Custom Synthesis
SZ-F008037
CAS No:NA
Mol.F.: C6H12Cl2N4O2S
Mol.Wt.: 275.1
Inv. Status: Custom Synthesis

Famotidine Impurity 16

Picture of Famotidine Impurity 16
CAT No: SZ-F008038
CAS No: NA
Mol.F. : C6H9Cl2N3O2S
Mol.Wt. : 258.1
Inv. Status: Custom Synthesis
SZ-F008038
CAS No:NA
Mol.F.: C6H9Cl2N3O2S
Mol.Wt.: 258.1
Inv. Status: Custom Synthesis

Famotidine Impurity 17

Picture of Famotidine Impurity 17
CAT No: SZ-F008039
CAS No: NA
Mol.F. : C6H14N6O4S2
Mol.Wt. : 298.3
Inv. Status: Custom Synthesis
SZ-F008039
CAS No:NA
Mol.F.: C6H14N6O4S2
Mol.Wt.: 298.3
Inv. Status: Custom Synthesis

Famotidine Impurity 18

Picture of Famotidine Impurity 18
CAT No: SZ-F008040
CAS No: 772304-31-1
Mol.F. : C6H10N6S2
Mol.Wt. : 230.3
Inv. Status: Custom Synthesis
Rel. CAS No : 124822-89-5 (2HCl salt)
SZ-F008040
CAS No:772304-31-1
Mol.F.: C6H10N6S2
Mol.Wt.: 230.3
Inv. Status: Custom Synthesis
Rel. CAS No : 124822-89-5 (2HCl salt)

Famotidine Impurity 19

Picture of Famotidine Impurity 19
CAT No: SZ-F008041
CAS No: NA
Mol.F. : C8H15N7O2S3
Mol.Wt. : 337.4
Inv. Status: Custom Synthesis
SZ-F008041
CAS No:NA
Mol.F.: C8H15N7O2S3
Mol.Wt.: 337.4
Inv. Status: Custom Synthesis

Famotidine EP Impurity B (Mandeleate salt)

Picture of Famotidine EP Impurity B (Mandeleate salt)
CAT No: SZ-F008043
CAS No: NA
Mol.F. : C16H23N11O2S5 : C8H8O3
Mol.Wt. : 561.7 : 152.1
Inv. Status: In Stock
Rel. CAS No : 89268-62-2 (free base) ; 109467-08-5 (dimaleate salt)
Rel. CAT No : SZ-F008003, SZ-F008046,
SZ-F008043
CAS No:NA
Mol.F.: C16H23N11O2S5 : C8H8O3
Mol.Wt.: 561.7 : 152.1
Inv. Status: In Stock
Rel. CAS No : 89268-62-2 (free base) ; 109467-08-5 (dimaleate salt)

Famotidine EP Impurity B (Dimaleate salt)

Picture of Famotidine EP Impurity B (Dimaleate salt)
CAT No: SZ-F008046
CAS No: 109467-08-5
Mol.F. : C16H23N11O2S5 : 2(C4H4O4)
Mol.Wt. : 561.7 : 2(116.1)
Inv. Status: In Stock
Rel. CAS No : 89268-62-2 (free base)
Rel. CAT No : SZ-F008003, SZ-F008043,
SZ-F008046
CAS No:109467-08-5
Mol.F.: C16H23N11O2S5 : 2(C4H4O4)
Mol.Wt.: 561.7 : 2(116.1)
Inv. Status: In Stock
Rel. CAS No : 89268-62-2 (free base)

Famotidine Impurity 20

Picture of Famotidine Impurity 20
CAT No: SZ-F008047
CAS No: 1644079-28-6
Mol.F. : C5H7ClN4S : HCl
Mol.Wt. : 190.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 1378820-83-7 (free base)
SZ-F008047
CAS No:1644079-28-6
Mol.F.: C5H7ClN4S : HCl
Mol.Wt.: 190.6 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 1378820-83-7 (free base)

Famotidine Impurity 21

Picture of Famotidine Impurity 21
CAT No: SZ-F008048
CAS No: 1378820-83-7
Mol.F. : C5H7ClN4S
Mol.Wt. : 190.6
Inv. Status: Custom Synthesis
Rel. CAS No : 1644079-28-6 (free base)
SZ-F008048
CAS No:1378820-83-7
Mol.F.: C5H7ClN4S
Mol.Wt.: 190.6
Inv. Status: Custom Synthesis
Rel. CAS No : 1644079-28-6 (free base)

Stable Isotopes And Metabolites

Famotidine D4

Picture of Famotidine D4
CAT No: SZ-F008D01
CAS No: NA
Mol.F. : C8H11D4N7O2S3
Mol.Wt. : 341.5
Inv. Status: Custom Synthesis
Rel. CAS No : 76824-35-6 (Unlabeled)
SZ-F008D01
CAS No:NA
Mol.F.: C8H11D4N7O2S3
Mol.Wt.: 341.5
Inv. Status: Custom Synthesis
Rel. CAS No : 76824-35-6 (Unlabeled)

Famotidine-13C-d3

Picture of Famotidine-13C-d3
CAT No: SZ-F008D02
CAS No: 2744683-81-4
Mol.F. : C713CH12D3N7O2S3
Mol.Wt. : 341.4
Inv. Status: Custom Synthesis
SZ-F008D02
CAS No:2744683-81-4
Mol.F.: C713CH12D3N7O2S3
Mol.Wt.: 341.4
Inv. Status: Custom Synthesis

Possible Nitroso Standards

N-Nitroso Famotidine - I

Picture of N-Nitroso Famotidine - I
CAT No: SZ-F008018
CAS No: NA
Mol.F. : C8H14N8O3S3
Mol.Wt. : 366.4
Inv. Status: Under Synthesis
SZ-F008018
CAS No:NA
Mol.F.: C8H14N8O3S3
Mol.Wt.: 366.4
Inv. Status: Under Synthesis

N-Nitroso Famotidine -II

Picture of N-Nitroso Famotidine -II
CAT No: SZ-F008019
CAS No: NA
Mol.F. : C8H15N8O3S3
Mol.Wt. : 367.4
Inv. Status: Under Synthesis
SZ-F008019
CAS No:NA
Mol.F.: C8H15N8O3S3
Mol.Wt.: 367.4
Inv. Status: Under Synthesis

Famotidine Nitroso Impurity 1

Picture of Famotidine Nitroso Impurity 1
CAT No: SZ-F008042
CAS No: NA
Mol.F. : C8H14N8O3S3
Mol.Wt. : 366.4
Inv. Status: Custom Synthesis
SZ-F008042
CAS No:NA
Mol.F.: C8H14N8O3S3
Mol.Wt.: 366.4
Inv. Status: Custom Synthesis

Famotidine Nitroso Impurity 2

Picture of Famotidine Nitroso Impurity 2
CAT No: SZ-F008044
CAS No: NA
Mol.F. : C6H11N3O5
Mol.Wt. : 205.2
Inv. Status: Custom Synthesis
SZ-F008044
CAS No:NA
Mol.F.: C6H11N3O5
Mol.Wt.: 205.2
Inv. Status: Custom Synthesis

Famotidine Nitroso Impurity 3

Picture of Famotidine Nitroso Impurity 3
CAT No: SZ-F008045
CAS No: NA
Mol.F. : C4H7N3O3
Mol.Wt. : 145.1
Inv. Status: Custom Synthesis
SZ-F008045
CAS No:NA
Mol.F.: C4H7N3O3
Mol.Wt.: 145.1
Inv. Status: Custom Synthesis