Famotidine is a medicine used for the treatment of gastric ulcers, stomach acid production, heartburn and gastroesophageal reflux . It is a histamine H2 receptor antagonist and it is an over-the-counter drug. Reference standards of Famotidine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Famotidine
Catalogue No.:PA 06 01000
CAS :
Molecular Formula : C8H15N7O2S3
Molecular Weight : 337.45
3-[[[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl]thio]propanimidamide Hydrochloride
Catalogue No.:PA 06 01010
Molecular Formula : C8H15ClN6S2
Molecular Weight : 294.83
3,5-Bis[2-[[[2-[(diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]ethyl]-4H-1,2,4,6-thiatriazine 1,1-dioxide
Catalogue No.:PA 06 01020
Molecular Formula : C16H23N11O2S5
Molecular Weight : 561.76
[3-[[[2-(Diaminomethyleneamino)-4-thiazolyl]methyl]thio]propionyl]sulfamide Hydrochloride
Catalogue No.:PA 06 01030
Molecular Formula : C8H15ClN6O3S3
Molecular Weight : 374.89
3-[[[2-[(Diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanamide
Catalogue No.:PA 06 01040
Molecular Formula : C8H13N5OS2
Molecular Weight : 259.35
2,2'-((Disulfanediylbis(methylene))bis(thiazole-4,2-diyl))diguanidine
Catalogue No.:PA 06 01050
Molecular Formula : C10H14N8S4
Molecular Weight : 374.53
3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]propanoic Acid;
Catalogue No.:PA 06 01060
Molecular Formula : C8H12N4O2S2
Molecular Weight : 260.34
3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]-N-cyanopropanimidamide
Catalogue No.:PA 06 01070
Molecular Formula : C9H13N7S2
Molecular Weight : 283.38
3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]sulfinyl]-N-(aminosulfonyl)propanamide
Catalogue No.:PA 06 01090
Molecular Formula : C8H14N6O4S3
Molecular Weight : 354.43
3-[2-(Diaminomethyleneamino)-1,3-thiazol-4-ylmethylsulphinyl]-N-sulphamoylpropanamidine
Catalogue No.:PA 06 01510
Molecular Formula : C8H15N7O3S3
Molecular Weight : 353.44
2-(4-(((2-Cyanoethyl)thio)methyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 01520
Molecular Formula : C8H11N5S2
Molecular Weight : 241.34
[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl Carbamimidothioate
Catalogue No.:PA 06 01080
Molecular Formula : C6H10N6S2
Molecular Weight : 230.31
Methyl 3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulfanyl]propanoate
Catalogue No.:PA 06 01100
Molecular Formula : C9H14N4O2S2
Molecular Weight : 274.36
3-[[[2-[(Diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanimidamide
Catalogue No.:PA 06 01011
Molecular Formula : C8H14N6S2
Molecular Weight : 258.36
[3-[[[2-(Diaminomethyleneamino)-4-thiazolyl]methyl]thio]propionyl]sulfamide
Catalogue No.:PA 06 01031
Molecular Formula : C8H14N6O3S3
Molecular Weight : 338.43
3-[[[2-[(Diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanamide Hydrochloride
Catalogue No.:PA 06 01530
Molecular Formula : C8H14ClN5OS2
Molecular Weight : 295.81
Famotidine Acid Methyl Ester Acetic Acid Salt (Famotidine Impurity)
Catalogue No.:PA 06 01540
Molecular Formula : C11H18N4O4S2
Molecular Weight : 334.42
[2-[(Diaminomethylene)amino]thiazol-4-yl]methyl Carbamimidothioate Dihydrochloride
Catalogue No.:PA 06 01550
Molecular Formula : C6H12Cl2N6S2
Molecular Weight : 303.24
1-(4-Methylthiazol-2-yl)guanidine Hydrochloride
Catalogue No.:PA 06 01560
Molecular Formula : C5H9ClN4S
Molecular Weight : 192.67
Famotidine-13C3
Catalogue No.:PA STI 040560
Molecular Formula : C513C3H15N7O2S3
Molecular Weight : 340.42
Famotidine-d4
Catalogue No.:PA STI 040570
Molecular Formula : C8H11D4N7O2S3
Molecular Weight : 341.47
Famotidine-13C,d4 Acid Impurity
Catalogue No.:PA STI 040580
Molecular Formula : C713CH8D4N4O2S2
Molecular Weight : 265.35
Methyl 3-(((2-acetamidothiazol-4-yl)methyl)thio)propanimidate
Catalogue No.:PAI 06 005010
Molecular Formula : C10H15N3O2S2
Molecular Weight : 273.38
Dediaminosulfonyl Hydroxymethyl Famotidine
Catalogue No.:PAI 06 005020
Molecular Formula : C9H15N5OS2
1-(4-(Chloromethyl)thiazol-2-yl)guanidine Hydrochloride
Catalogue No.:PAI 06 005030
Molecular Formula : C5H8Cl2N4S
Molecular Weight : 227.11
S-((2-Guanidinothiazol-4-yl)methyl) Ethanethioate
Catalogue No.:PAI 06 005040
Molecular Formula : C7H10N4OS2
1-(4-(Mercaptomethyl)thiazol-2-yl)guanidine
Catalogue No.:PAI 06 005050
Molecular Formula : C5H8N4S2
Molecular Weight : 188.27
N-Cyano-3-[[[2-[(diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanimidamide Maleate
Catalogue No.:PA 06 01071
Molecular Formula : C13H17N7O4S2
Molecular Weight : 399.44
Famotidine (F0005000)
Catalogue No.:PA EPF0005000
Molecular Formula : NA
Molecular Weight : NA
Catalogue No.:PA IPIPRS 29 11
Molecular Formula :
Famotidine for system suitability (Y0000382)
Catalogue No.:PA EPY0000382
Famotidine impurity D (Y0000409)
Catalogue No.:PA EPY0000409
Famotidine (1269200)
Catalogue No.:PA USP1269200
Famotidine Related Compound B (3,5-bis[2-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphany (1269221)
Catalogue No.:PA USP1269221
Famotidine Related Compound C (3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylthio]-N-sulfamoylpro (1269232)
Catalogue No.:PA USP1269232
Famotidine Related Compound D (3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylthio]propanamide) (1269243)
Catalogue No.:PA USP1269243
Famotidine Related Compound E (2,2'-[4,4'-disulfanediylbis(methylene)bis(thiazole-4,2-diyl)]diguani (1269254)
Catalogue No.:PA USP1269254
Famotidine Related Compound F (3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylthio]propanoic acid) (1269265)
Catalogue No.:PA USP1269265
Famotidine Sulfoxide (3-[[2-(diaminomethyleneamino)thiazol-4-yl]methylsulfinyl]-N'-sulfamoylpropani (1269298)
Catalogue No.:PA USP1269298
famotidine (653RB)
Catalogue No.:PA BP653RB
Famotidine impurity C (654RB)
Catalogue No.:PA BP654RB
famotidine degradation impurity 1 (655RB)
Catalogue No.:PA BP655RB
famotidine degradation impurity 2 (656RB)
Catalogue No.:PA BP656RB
Famotidine Dihydrochloride
Catalogue No.:PA 06 0011000
Molecular Formula : C8H16Cl2N6S2
Molecular Weight : 331.28
N-Cyano-3-[[[2-[(diaminomethylidene)amino]thiazol-4-yl]methyl]sulfanyl]propanimidamide Hydrochloride
Catalogue No.:PA 06 01072
Molecular Formula : C9H14ClN7S2
Molecular Weight : 319.83
1-(4-(Chloromethyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 0011002
Molecular Formula : C5H7ClN4S
Molecular Weight : 190.65
3-(((2-((Diaminomethylene)amino)thiazol-4-yl)methyl)sulfinyl)-N-sulfamoylpropanamide hydrochloride
Catalogue No.:PA 06 0011003
Molecular Formula : C8H15ClN6O4S3
Molecular Weight : 390.88
N-(Aminosulfonyl)-3-chloropropanamide
Catalogue No.:PA 06 0011001
Molecular Formula : C3H7ClN2O3S
Molecular Weight : 186.61
N-Sulphamyl-3-chloropropionamidine Hydrochloride
Catalogue No.:PA 06 0011005
Molecular Formula : C3H9Cl2N3O2S
Molecular Weight : 222.08
N-Nitroso Famotidine - I
Catalogue No.:PA 06 0011004
Molecular Formula : C8H14N8O3S3
Molecular Weight : 366.43
Ethyl 3-(((2-((diaminomethylene)amino)thiazol-4-yl)methyl)thio)propanimidate
Catalogue No.:PAI 06 005051
Molecular Formula : C10H17N5OS2
Molecular Weight : 287.4
1-(4-(Chloromethyl)-4-hydroxy-4,5-dihydrothiazol-2-yl)guanidine
Catalogue No.:PA 06 0011006
Molecular Formula : C5H9ClN4OS
Molecular Weight : 208.66
3,5-bis(2-Chloroethyl)-4H-1,2,4,6-thiatriazine 1,1-dioxide
Catalogue No.:PA 06 0011008
Molecular Formula : C6H9Cl2N3O2S
Molecular Weight : 258.12
1-(4-(((2-(3-(Hydroxymethyl)-1,1-dioxido-3,4-dihydro-2H-1,2,4,6-thiatriazin-5-yl)ethyl)thio)methyl)thiazol-2-yl)guanidine maleate
Catalogue No.:PA 06 0011007
Molecular Formula : C14H21N7O7S3
Molecular Weight : 495.54
Famotidine-13C-d3
Catalogue No.:PA STI 089065
Molecular Formula : C713CH12D3N7O2S3
Molecular Weight : 341.45
N-Sulfamoylacrylimidamide
Catalogue No.:PA 06 0011009
Molecular Formula : C3H7N3O2S
Molecular Weight : 149.17
(2-Aminothiazol-4-yl)methyl Carbamimidothioate
Catalogue No.:PA 06 0011010
1-((2-Guanidinothiazol-4-yl)methyl)thiourea
Catalogue No.:PA 06 0011011
N-(N-Benzylidenesulfamoyl)-3-(((2-guanidinothiazol-4-yl)methyl)thio)propanimidamide
Catalogue No.:PA 06 0011012
Molecular Formula : C15H19N7O2S3
Molecular Weight : 425.54
2-(4-(((2-(1,1-Dioxido-5-phenyl-5,6-dihydro-2H-1,2,4,6-thiatriazin-3-yl)ethyl)thio)methyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 0011013
N-Nitroso Famotidine 2
Catalogue No.:PA 06 0011014
1-(4-(Chloromethyl)-4-hydroxy-4,5-dihydrothiazol-2-yl)guanidine Hydrochloride
Catalogue No.:PA 06 0011015
Molecular Formula : C5H10Cl2N4OS
Molecular Weight : 245.12
N-Sulphamyl-3-chloropropionamidine
Catalogue No.:PA 06 0011016
Molecular Formula : C3H8ClN3O2S
Molecular Weight : 185.63
N-nitroso N-Propyl Sulfamide
Catalogue No.:PA 06 0011017
Molecular Formula : C3H9N3O3S
Molecular Weight : 167.18
Famotidine (IPRS/85/16)
Catalogue No.:PA IPRS 85 16
1-(4-(((2-(1,1-Dioxido-3,4-dihydro-2H-1,2,4,6-thiatriazin-5-yl)ethyl)thio)methyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 0011018
Molecular Formula : C9H15N7O2S3
Molecular Weight : 349.45
(2-((Diaminomethylene)amino)thiazol-5-yl)methyl carbamimidothioate
Catalogue No.:PA 06 0011019
(Z)-3-(((2-((Diaminomethylene)amino)thiazol-5-yl)methyl)thio)-N'-sulfamoylpropanimidamide
Catalogue No.:PA 06 0011020
Molecular Weight : 337.44
1-(5-(Chloromethyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 0011021
(Z)-3-Chloro-N'-sulfamoylpropanimidamide
Catalogue No.:PA 06 0011022
(2-Guanidinothiazol-5-yl)methyl carbamimidothioate Dihydrochloride
Catalogue No.:PA 06 0011023
Molecular Weight : 303.22
3-[[(2-Amino-4-thiazolyl)methyl]thio]propanenitrile
Catalogue No.:PA 06 0011024
Molecular Formula : C7H9N3S2
Molecular Weight : 199.29
2-Chloro-N-sulfamoylpropanimidamide
Catalogue No.:PA 06 0011025
2-(4-(((2-(1,1-Dioxido-3-((1S,2R,3R,4R)-1,2,3,4,5-pentahydroxypentyl)-3,4-dihydro-2H-1,2,4,6-thiatriazin-5-yl)ethyl)thio)methyl)thiazol-2-yl)guanidine
Catalogue No.:PA 06 0011026
Molecular Formula : C14H25N7O7S3
Molecular Weight : 499.58
5-(2-Chloroethyl)-3,3-dimethyl-3,4-dihydro-2H-1,2,4,6-thiatriazine 1,1-dioxide
Catalogue No.:PA 06 0011027
Molecular Formula : C6H12ClN3O2S
Molecular Weight : 225.69
(Z)-3-(((2-((Diaminomethylene)amino)thiazol-4-yl)methyl)thio)-N'-(N-((E)-2,3,4,5,6-pentahydroxyhexylidene)sulfamoyl)propanimidamide
Catalogue No.:PA 06 0011028
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