Pharmaceutical Impurity Reference Standards

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Structure Chemical Name CAS MF
PROPYLENE GLYCOL MONOLAURATE PROPYLENE GLYCOL MONOLAURATE 27194-74-7 C15H30O3
5-Vinylpyrrolidone 5-Vinylpyrrolidone 7529-16-0 C6H9NO
4-[N-(2,4-DIAMINO-6-PTERIDINYLMETHYL)-N-METHYLAMINO] BENZOIC ACID 4-[N-(2,4-DIAMINO-6-PTERIDINYLMETHYL)-N-METHYLAMINO] BENZOIC ACID 19741-14-1 C15H15N7O2
ZOPICLONE N-OXIDE ZOPICLONE N-OXIDE 43200-96-0 C17H17ClN6O4
(1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOL (1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOL 3947-65-7 C12H26N4O6
1-ETHYL-1-METHYLSUCCINIC ACID 1-ETHYL-1-METHYLSUCCINIC ACID 631-31-2 C7H12O4
MUPIROCIN CALCIUM, REFERENCE SPECTRUM EP STANDARD MUPIROCIN CALCIUM, REFERENCE SPECTRUM EP STANDARD 115074-43-6 C52H86CaO18.2H2O
1-(p-Fluoro-phenyl-6-fluoro-7-chloro-4-oxo-3-quinolinecarboxylic acid 1-(p-Fluoro-phenyl-6-fluoro-7-chloro-4-oxo-3-quinolinecarboxylic acid 98105-79-4 C16H8ClF2NO3
Tranylcypromine Hemisulfate Tranylcypromine Hemisulfate 13492-01-8 C9H13NO4S
IOXILAN   RELATED  COMPOUND  A (100 MG)  (5-AMINO-2,4,6-TRIIODO-3  N-(2-HYDROXYETHYL)CARBA-MOYL BENZOIC ACID) IOXILAN RELATED COMPOUND A (100 MG) (5-AMINO-2,4,6-TRIIODO-3 N-(2-HYDROXYETHYL)CARBA-MOYL BENZOIC ACID) 22871-58-5 C10H9I3N2O4
(2RS)-2-(4-BUTYLPHENYL)PROPANOIC ACID (2RS)-2-(4-BUTYLPHENYL)PROPANOIC ACID 3585-49-7 C13H18O2
(S)-Omeprazole  magnesium  dihydrate,  Nexium  dihydrate,  (T-4)-Bis[6-methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl-KO]-1H-benzimidazolato-KN3]-Magnesium  dihydrate (S)-Omeprazole magnesium dihydrate, Nexium dihydrate, (T-4)-Bis[6-methoxy-2-[(S)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl-KO]-1H-benzimidazolato-KN3]-Magnesium dihydrate 217087-10-0 C34H36MgN6O6S2.2H2O
ISOPROPAMIDE IODIDE ISOPROPAMIDE IODIDE 71-81-8 C23H33IN2O
5,10-Dihydro-2-methyl-4H-thieno[2,3-β][1,5]benzodiazepin-4-one (Olanzapine Impurity) 5,10-Dihydro-2-methyl-4H-thieno[2,3-β][1,5]benzodiazepin-4-one (Olanzapine Impurity) 221176-49-4 C12H10N2OS
Colestipol hydrochloride Colestipol hydrochloride 37296-80-3 C8H24ClN5
PROSTAGLANDIN B1 PROSTAGLANDIN B1 13345-51-2 C20H32O4
Dexamethasone Isonicotinate Dexamethasone Isonicotinate 2265-64-7 C28H32FNO6
diisopropyl bicarbamate diisopropyl bicarbamate 19740-72-8 C8H16N2O4
CALCIUM GLUCOHEPTONATE CALCIUM GLUCOHEPTONATE 17140-60-2 C7H16CaO8
PROSTAGLANDIN A1 PROSTAGLANDIN A1 14152-28-4 C20H32O4
3-(4-ISOBUTYL-PHENYL)-PROPIONIC ACID 3-(4-ISOBUTYL-PHENYL)-PROPIONIC ACID 65322-85-2 C13H18O2
FOSINOPRILAT FOSINOPRILAT 95399-71-6 C23H34NO5P
3-(1-Piperidinyl)propiophenone HCl 3-(1-Piperidinyl)propiophenone HCl 73-63-2 C14H19NO
3-ACETYLBENZOPHENONE 3-ACETYLBENZOPHENONE 66067-44-5 C15H12O2
N,N'-bis-(2-Chloroethyl)urea N,N'-bis-(2-Chloroethyl)urea 2214-72-4 C5H10Cl2N2O
Omeprazole Sulfone N-Oxide Omeprazole Sulfone N-Oxide 158812-85-2 C17H19N3O5S
PROCYCLIDINE HYDROCHLORIDE PROCYCLIDINE HYDROCHLORIDE 1508-76-5 C19H30ClNO
DIPHENOXYLATE HYDROCHLORIDE DIPHENOXYLATE HYDROCHLORIDE 3810-80-8 C30H33ClN2O2
Ziprasidone mesilate Ziprasidone mesilate 199191-69-0 C22H31ClN4O7S2
HUMAN FACTOR IX HUMAN FACTOR IX 9001-28-9
OSELTAMIVIR ACID OSELTAMIVIR ACID 187227-45-8 C14H24N2O4
EMEDASTINE FUMARATE EMEDASTINE FUMARATE 87233-62-3 C25H34N4O9
D-SACCHARIC ACID CALCIUM SALT TETRAHYDRATE D-SACCHARIC ACID CALCIUM SALT TETRAHYDRATE 5793-89-5 C6H14CaO9
Benzarone Benzarone 1477-19-6 C17H14O3
Estradiol hemihydrate Estradiol hemihydrate 35380-71-3 C18H24O2.H2O
PantoprazoleSodiumSesquihydrate PantoprazoleSodiumSesquihydrate 164579-32-2 C16H18F2N3NaO5S
ARISTOLOCHIC ACID SODIUM SALT ARISTOLOCHIC ACID SODIUM SALT 10190-99-5 C17H12NNaO7
Ticarcillin sodium Ticarcillin sodium 74682-62-5 C15H14N2Na2O6S2
(3-BROMO-2,4,6-TRIMETHYLPHENYLCARBAMOYL)METHYLIMINODIACETIC ACID (3-BROMO-2,4,6-TRIMETHYLPHENYLCARBAMOYL)METHYLIMINODIACETIC ACID 78266-06-5 C15H19BrN2O5
CIS-ENTACAPONE CIS-ENTACAPONE 145195-63-7 C14H15N3O5
2-(hydroxymethyl)-2-methylpentyl isopropyl-carbamate 2-(hydroxymethyl)-2-methylpentyl isopropyl-carbamate 25462-17-3 C11H23NO3
PERTUSSIS TOXIN PERTUSSIS TOXIN 70323-44-3 NULL
1-methyl-3-(9H-thioxanthen-9-ylmethyl)piperidine 1-methyl-3-(9H-thioxanthen-9-ylmethyl)piperidine 7081-40-5 C20H23NS
4-METHOXYCINNAMIC ACID ETHYL ESTER 4-METHOXYCINNAMIC ACID ETHYL ESTER 99880-64-5 C12H14O3
THIOXANTHENE THIOXANTHENE 261-31-4 C13H10S
ISOSORBIDE 2-MONONITRATE ISOSORBIDE 2-MONONITRATE 16106-20-0 C6H9NO6
4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide 118854-48-1 C13H15NO5S
Dopexamine hydrochloride Dopexamine hydrochloride 86484-91-5 C22H34Cl2N2O2
4-(4-Chlorophenyl)-2-pyrrolidinone 4-(4-Chlorophenyl)-2-pyrrolidinone 22518-27-0 C10H10ClNO
(3S,4S)-3-HEXYL-4-[(R)-2-(HYDROXYTRIDECYL)]OXETAN-2-ONE (3S,4S)-3-HEXYL-4-[(R)-2-(HYDROXYTRIDECYL)]OXETAN-2-ONE 104872-06-2 C22H42O3
2-ALLYL-4-PENTENOIC ACID 2-ALLYL-4-PENTENOIC ACID 99-67-2 C8H12O2
Ipratropium bromide monohydrate Ipratropium bromide monohydrate 66985-17-9 C20H32BrNO4
N-DesMethyl DiphenhydraMine Hydrochloride N-DesMethyl DiphenhydraMine Hydrochloride 53499-40-4 C16H20ClNO
4-(4-chlorophenyl)-1-[4-(4-fluorophenyl)-4-oxobutyl]-4-piperidyl decanoate 4-(4-chlorophenyl)-1-[4-(4-fluorophenyl)-4-oxobutyl]-4-piperidyl decanoate 74050-97-8 C31H41ClFNO3
DESETHYLENE CIPROFLOXACIN, HYDROCHLORIDE DESETHYLENE CIPROFLOXACIN, HYDROCHLORIDE 528851-31-2 C15H16FN3O3.ClH
OXOLINIC ACID IMPURITY B OXOLINIC ACID IMPURITY B 16172-03-5 C15H15NO5
exo-Granisetron (Granisetron Impurity F) exo-Granisetron (Granisetron Impurity F) 127472-42-8 C18H24N4O
dacisteine dacisteine 18725-37-6 C7H11NO4S
(±)-2-methyl-1-nitrosoindoline (±)-2-methyl-1-nitrosoindoline 85440-79-5 C9H10N2O
CLADRIBINE  RELATED  COMPOUND A  (20 MG)  (2-METHOXY-2'-DEOXYADENOSINE) CLADRIBINE RELATED COMPOUND A (20 MG) (2-METHOXY-2'-DEOXYADENOSINE) 24757-70-8 C11H15N5O4
VALPROIC ACID RELATED COMPOUND B (50 MG) ((2RS)-2-(1-METHYLETHYL)PENTANOIC ACID) (AS) VALPROIC ACID RELATED COMPOUND B (50 MG) ((2RS)-2-(1-METHYLETHYL)PENTANOIC ACID) (AS) 62391-99-5 C8H16O2
COAGULATION FACTOR VIIA, HUMAN COAGULATION FACTOR VIIA, HUMAN 102786-61-8
Citalopram hydrochloride Citalopram hydrochloride 85118-27-0 C20H22ClFN2O
INTERFERON ALFA-2B INTERFERON ALFA-2B 99210-65-8
ISO-MALATHION ISO-MALATHION 3344-12-5 C10H19O6PS2
alpha-[2-Fluoro-4-(1H-1,2,4-triazol-1-yl)phenyl]-alpha-(1H-1,2,4-triazol-1-ylmethyl)-1H-1,2,4-triazole-1-ethanol alpha-[2-Fluoro-4-(1H-1,2,4-triazol-1-yl)phenyl]-alpha-(1H-1,2,4-triazol-1-ylmethyl)-1H-1,2,4-triazole-1-ethanol 871550-15-1 C15H14FN9O
1-(3-Chlorophenyl)-5-isopropylbiguanide Hydrochloride 1-(3-Chlorophenyl)-5-isopropylbiguanide Hydrochloride 1071546-52-5 C11H17Cl2N5
TIZANIDINE RELATED COMPOUND C (50 MG) (1-ACETYLIMIDAZOLIDINE-2-THIONE) TIZANIDINE RELATED COMPOUND C (50 MG) (1-ACETYLIMIDAZOLIDINE-2-THIONE) 5391-52-6 C5H8N2OS
CROTONYLBETAINE(CARNITINE IMPURITY)(RG) CROTONYLBETAINE(CARNITINE IMPURITY)(RG) 927-89-9 C16H30N2O6
4-CHLOROBENZYLIDENE PHTHALIDE 4-CHLOROBENZYLIDENE PHTHALIDE 20526-97-0 C15H9ClO2
1,5-dihydro-4H-imidazo[4,5-d]-1,2,3-triazin-4-one 1,5-dihydro-4H-imidazo[4,5-d]-1,2,3-triazin-4-one 4656-86-4 C4H3N5O
3-amino-5-(aminosulphonyl)-4-phenoxybenzoic acid 3-amino-5-(aminosulphonyl)-4-phenoxybenzoic acid 28328-54-3 C13H12N2O5S
PN 203-831 PN 203-831 116169-18-7 C19H19N3O5
Pramipexole Impurity 16 Pramipexole Impurity 16 104632-27-1 C10H18ClN3S
cis-Glimepiride cis-Glimepiride 684286-46-2 C24H34N4O5S
ent-Voriconazole ent-Voriconazole 137234-63-0 C16H14F3N5O
ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate ethyl 5-(forMylaMino)-1H-pyrazole-4-carboxylate 31055-19-3 C7H9N3O3
2,2'-Bis-(1-adaMantyl)-4,4'-diMethoxybiphenyl 2,2'-Bis-(1-adaMantyl)-4,4'-diMethoxybiphenyl 932033-57-3 C34H42O2
Orlistat Related Compound D Orlistat Related Compound D 130793-27-0 C29H53NO5
GLYBURIDE   RELATED   COMPOUND   B   (25 MG) (METHYL-[[4-[2-[(5-CHLORO-2-METHOXYBENZOYL)-AMINO]ETHYL]PHENYL]SULFONYL]CARBAMATE) (AS) GLYBURIDE RELATED COMPOUND B (25 MG) (METHYL-[[4-[2-[(5-CHLORO-2-METHOXYBENZOYL)-AMINO]ETHYL]PHENYL]SULFONYL]CARBAMATE) (AS) 21165-77-5 C18H19ClN2O6S
Chitosan Hydrochloride Chitosan Hydrochloride 70694-72-3
CALCIPOTRIOL MONOHYDRATE CALCIPOTRIOL MONOHYDRATE 147657-22-5 C27H42O4
Endo-3-amine-9-methyl-9-azabicyclo[3,3,1]nonane Endo-3-amine-9-methyl-9-azabicyclo[3,3,1]nonane 107007-95-4 C17 H22 N4 O
SODIUM O-IODOHIPPURATE SODIUM O-IODOHIPPURATE 133-17-5 C9H7INNaO3
2-(4-chloro-3-sulphamoylbenzoyl)benzoic acid 2-(4-chloro-3-sulphamoylbenzoyl)benzoic acid 5270-74-6 C14H10ClNO5S
5H-dibenzo[a,d]cycloheptene 5H-dibenzo[a,d]cycloheptene 256-81-5 C15H12
6-aminocarbovir 6-aminocarbovir 124752-25-6 C11H14N6O
dihydromevinolin dihydromevinolin 77517-29-4 C24H38O5
PACLITAXEL C PACLITAXEL C 153415-45-3 C46H57NO14
2,4-Diamino-6-phenyl-7-pteridinol 2,4-Diamino-6-phenyl-7-pteridinol 19152-93-3 C12H10N6O
FaMotidine AMide IMpurity FaMotidine AMide IMpurity 76824-16-3 C8H13N5OS2
1-[3-(DIMETHYLAMINO)PROPYL]-1-(4-FLUOROPHENYL)-1,3-DIHYDRO-5-ISOBENZOFURANCARBOXAMIDE 1-[3-(DIMETHYLAMINO)PROPYL]-1-(4-FLUOROPHENYL)-1,3-DIHYDRO-5-ISOBENZOFURANCARBOXAMIDE 64372-56-1 C20H23FN2O2
Trimethoprim Related Compound A (25 mg) (4-amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol) (AS) Trimethoprim Related Compound A (25 mg) (4-amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol) (AS) 60729-91-1 C14H17N3O4
13-CIS-ACITRETIN 13-CIS-ACITRETIN 69427-46-9 C21H26O3
YTTERBIUM(III) IONOPHORE I YTTERBIUM(III) IONOPHORE I 125110-14-7 C16H17N5O8S2
CITALOPRAM  RELATED  COMPOUND  F  (200 MG) (DIMETHYL-(1-METHYL-3,3-DIPHENYL-ALLYL)-AMINE HYDROCHLORIDE) CITALOPRAM RELATED COMPOUND F (200 MG) (DIMETHYL-(1-METHYL-3,3-DIPHENYL-ALLYL)-AMINE HYDROCHLORIDE) 55011-89-7 C18H22ClN
PROPYLENE GLYCOL DILAURATE PROPYLENE GLYCOL DILAURATE 22788-19-8 C27H52O4
COAGULATION FACTOR VII, HUMAN COAGULATION FACTOR VII, HUMAN 9001-25-6
1,3-dihydro-6-methylfuro[3,4-c]pyridin-7-ol 1,3-dihydro-6-methylfuro[3,4-c]pyridin-7-ol 5196-20-3 C8H9NO2
metomidate metomidate 5377-20-8 C13H14N2O2
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