| imidazole (Hydroxymetronidazole) | 4812-40-2 | C6H9N3O4 |
| Imidocarb impurity 1 | Not available | C18H18N6 |
| Iminodibenzyl | 494-19-9 | C14H13N |
| Iminodibenzyl (10,11-Dihydro-5H-dibenzo[b,f]azepine) | 494-19-9 | C14H13N |
| Iminophenazine | 102262-55-5 | C24H16Cl2N4 |
| Iminostilbene | 256-96-2 | C14H11N |
| Iminostilbene | 256-96-2 | C14H11N |
| Imipenem Impurity 4 | 74288-40-7 | C16H16N2O7 |
| Imipenem Impurity 6 | 130792-44-8 | C24H34N6O8S2 |
| Imipenem Impurity 7 | 85604-01-9 | C23H30N4O8S2 |
| Imipenem Impurity 12 | 1193105-97-3 | C12H19N3O5S |
| Imipenem Impurity 18 | 93788-47-7 | C14H17N3O5Si |
| Imipenem Impurity 19 | 74288-39-4 | C16H16N4O7 |
| Imipenem Impurity 23 | Not available | C12H19N3O5S |
| Imipenem Impurity 31 | 2801-13-0 | C6H8N2S4 |
| Imipenem Impurity A | 59995-64-1 | C11H16N2O4S |
| Imipenem Impurity B | 1197869-90-1 | C12H19N3O5S |
| Imipenem-Cilastatin | 92309-29-0 | C28H43N5O9S2 |
| Imipramine for system suitability | 113-52-0 | C19H25ClN2 |
| Imipramine Hydrochloride Imp. A (EP) as Hydrochloride: 3-(10,11-Dihydro- 5H-dibenzo[b,f]azepin-5-yl)-N-methylpropan-1- amine Hydrochloride (Desipramine Hydrochloride) | 58-28-6 | C18H23ClN2 |
| Imipramine Hydrochloride Imp. B (EP): 3-(5H-Dibenzo[b,f]azepin-5-yl)- N,N-dimethylpropan-1-amine (Depramine; 10,11-Dehydroimipramine) | 303-54-8 | C19H22N2 |
| Imipramine Hydrochloride Imp. C (EP) as Hydrochloride: 10-[3-(Dimethyl- amino)propyl]acridin-9(10H)-one Hydrochloride | 2307-88-2 | C18H21ClN2O |
| Imipramine N-Oxide | 6829-98-7 | C19H24N2O |
| Imiquimod N-Oxide | 1807607-22-2 | C14H16N4O |
| Imiquimod Related Compound A | 99010-24-9 | C14H15N3 |
| Imiquimod Related Compound B | 99010-63-6 | C14H15N3O |
| Imiquimod Related Compound C | 99010-64-7 | C14H14ClN3 |
| Imiquimod Related Compound D | 853792-81-1 | C13H14N4 |
| Imp A (EP): (2RS)-2-(2-Oxopyrrolidin-1-yl)butanoic Acid | 67118-31-4 | C8H13NO3 |
| Imp B (EP) as Hydrochloride: 1-(4-Amino-3,5-dichlorophenyl)- 2-[(1,1-dimethylethyl)amino]ethanone Hydrochloride | 37148-49-5 | C12H17Cl3N2O |
| Imp C (EP): 5-Chloro-1-methyl-4-nitro-1H-imidazole | 4897-25-0 | C4H4ClN3O2 |
| Imp C (EP): (2RS)-2-(Acetylamino)-4-(methylsulfanyl)butanoic Acid (N-Acetyl-DL-methionine) | 1115-47-5 | C7H13NO3S |
| Imp, A (EP): Ethyl 2-Ethoxy-1-[[2'-(1H- tetrazol-5-yl)biphenyl-4-yl]methyl]-1H- benzimidazole-7-carboxylate | 139481-58-6 | C26H24N6O3 |
| Impureza A de metamizol | 1672-58-8 | C12H13N3O2 |
| Impureza C da cafeína | 519-32-4 | C8H10N4O2 |
| Impureza C de acetilcisteína | 5545-17-5 | C10H16N2O6S2 |
| Impureza D de acetilcisteína | 18725-37-6 | C7H11NO4S |
| Indacaterol Acetate | 1000160-96-2 | C26H32N2O5 |
| Indapamide EP Impurity A | 85440-79-5 | C9H10N2O |
| Indapamide EP Impurity B | 63968-75-2 | C16H14ClN3O3S |
| Indapamide EP Impurity C (HCl) | 31529-47-2 | C9H13ClN2 |
| Indapamide EP Impurity C HCl | 102789-79-7 | C9H13ClN2 |
| Indapamide EP Impurity I | 2455-92-7 | C7H7ClN2O3S |
| Indapamide Imp. A (EP): (2RS)-2-Methyl-1-nitroso- 2,3-dihydro-1H-indole | 85440-79-5 | C9H10N2O |
| Indapamide Imp. B (EP): 4-Chloro-N-(2-methyl-1H- indol-1-yl)-3-sulphamoylbenzamide | 63968-75-2 | C16H14ClN3O3S |
| Indapamide Impurity 1 | 1205-30-7 | C7H6ClNO4S |
| Indapamide Impurity 8 | 126750-70-7 | C16H16ClN3O4S |
| Indapamide Impurity 9 | 1219174-77-2 | C16H16ClN3O6S2 |
| Indapamide Impurity 11 | 1856658-28-0 | C8H7ClO5S |
| Indapamide Impurity 13 | 70049-77-3 | C7H5Cl2NO3S |
| Indapamide Impurity 14 | 604787-44-2 | C9H9ClO5S |
| Indapamide Impurity 16 | 31529-46-1 | C9H12N2 |
| Indapamide Impurity 18 | 22160-09-4 | C9H11N |
| Indapamide Impurity 19 | 22160-13-0 | C9H11N |
| Indapamide Impurity 20 | 53406-41-0 | C9H10N2 |
| Indapamide Impurity 22 | 85392-00-3 | C10H16N2O3S |
| Indapamide Impurity 24 | Not available | C16H14ClN3O4S |
| Indapamide impurity B | 63968-75-2 | C16H14ClN3O3S |
| Indapamide impurity B | 63968-75-2 | C16H14ClN3O3S |
| Indapamide impurity B | Not available | C16H15ClN2O3S |
| Indapamide impurity B CRS | 63968-75-2 | C16H14ClN3O3S |
| Indapamide Impurity C | 85392-00-3 | C10H16N2O3S |
| Indapamide Impurity D | 2494-79-3 | C7H4Cl2O4S |
| Indapamide Impurity G | 55-18-5 | C4H10N2O |
| Indapamide Related Compound A | 63968-75-2 | C16H14ClN3O3S |
| Indapamide Related CoMpound C | 6872-06-6 | C9H11N |
| Indapamide-D3 | 1217052-38-4 | C16H16ClN3O3S |
| Indatrol Impurity 4 | 1403389-05-8 | C24H30N2O3 |
| Indatrol Impurity 5 | 312753-70-1 | C13H19N |
| Indatrol Impurity 7 | 1534342-47-6 | C31H34N2O3 |
| Indatrol Impurity 8 | 1384189-12-1 | C38H40N2O3 |
| Indigo carmine impurity 1 | 27414-69-3 | C16H9N2NaO5S |
| Indigo carmine impurity 2 | 27414-68-2 | C16H8N2Na2O8S2 |
| Indigo carmine impurity 3 (Indigo) | 482-89-3 | C16H10N2O2 |
| Indinavir for system suitability | 180683-37-8 | C36H49N5O5 |
| Indobufen | 63610-08-2 | C18H17NO3 |
| Indobufen Impurity 1 | 94814-82-1 | C10H10N2O2 |
| Indobufen Impurity 5 | 21762-22-1 | C10H11NO4 |
| Indobufen Impurity 5 | 1823992-40-0 | C10H12N2 |
| Indobufen Impurity 6 | 160723-33-1 | C10H11NO4 |
| Indobufen Impurity 6 | 1781917-78-9 | C10H12N2 |
| Indobufen Impurity 10 | 21762-24-3 | C10H13NO2 |
| Indobufen Impurity 12 | 15494-55-0 | C10H12N2 |
| Indobufen Impurity 12 | 38896-06-9 | C11H15NO2 |
| Indobufen Impurity 13 | 91642-00-1 | C12H15NO4 |
| Indobufen Impurity 23 | 94232-67-4 | C18H15NO4 |
| Indobufen Impurity 24 | 76553-18-9 | C18H17NO4 |
| Indobufen Impurity 28 | 203313-55-7 | C18H19NO4 |
| Indocyanine Green Impurity1 | 13959-24-5 | C17H17ClN2 |
| Indocyanine green impurity 2 | 1351043-94-1 | C32H34N2O4S |
| Indocyanine green impurity 5 | 52568-84-0 | C15H15N |
| Indocyanine green impurity 6 | 5608-83-3 | C17H16N2 |
| Indocyanine green impurity 15 | Not available | C32H34N2O4S |
| Indocyanine green impurity 17 | 41532-84-7 | C15H15N |
| Indocyanine green impurity 18 | 63149-24-6 | C19H23NO3S |
| Indocyanine green impurity 22 | 53405-99-5 | C11H9N3O5 |
| Indocyanine green impurity 23 | 1182721-75-0 | C30H32N2O3S |
| Indocyanine green impurity 26 | 17432-66-5 | C11H11NO |
| Indole-4,5,6,7-d4 | 73509-22-5 | C8H7N |
| Indoline | 120-72-9 | C8H7N |
| Indoline impurity 3 | 752184-07-9 | C13H15NO |
| Indoline impurity 4 | 1365920-38-2 | C26H31NO2 |
| Indoline impurity 6 | 2788-23-0 | C12H8N2O |
| Indoline impurity 7 | 117782-96-4 | C8H6N2O |
| Indoline impurity 11 | 421578-44-1 | C16H14BrN3OS2 |
| Indoline impurity 12 | 219655-02-4 | C18H16N2OS2 |
| Indoline impurity 14 | 1093086-32-8 | C9H9NO2 |
| Indoline impurity 15 | 90196-41-1 | C8H6N2O3 |
| Indometacin 1,2,3-Propanetriol Esters (Mixture of Isomers) | Not available | C44H44Cl2N2O12 |
| Indometacin 1,2-Propylene Glycol Esters (Mixture of Isomers) | Not available | C44H44Cl2N2O10 |
| Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers) | Not available | C46H48Cl2N2O10 |
| Indometacin 2,3-Butylene Glycol Ester | 87293-45-6 | C23H24ClNO5 |
| Indometacin Imp. A (EP): 4-Chlorobenzoic Acid | Not available | C7H5ClO2 |
| Indometacin Imp. G (Pharmeuropa): [1-(3,4-Dichlorobenzoyl)-5-methoxy-2- methyl-1H-indol-3-yl]acetic Acid (3,4-Dichloroindometacin) | 402849-26-7 | C19H15Cl2NO4 |
| Indometacin Imp. H (EP): Methyl [1-(4-Chlorobenzoyl)-5-methoxy-2-methyl- 1H-indol-3-yl]acetate (Indomethacin Methyl Ester) | 1601-18-9 | C20H18ClNO4 |
| Indomethacin Diamide | 402849-25-6 | C33H27Cl2N3O5 |
| Indomethacin EP impurity C | 4018-82-0 | C14H12ClNO2 |
| Indomethacin EP impurity E | 807614-94-4 | C19H16ClNO4 |
| Indomethacin EP impurity F | 402849-27-8 | C21H16Cl2N2O3 |
| Indomethacin EP impurity G | 402849-26-7 | C19H15Cl2NO4 |
| Indomethacin EP impurity H | 1601-18-9 | C20H18ClNO4 |
| Indomethacin EP impurity I | 16401-99-3 | C21H20ClNO4 |
| Indomethacin EP impurity J | 402849-25-6 | C33H27Cl2N3O5 |
| Indomethacin Ethyl Ester | 16401-99-3 | C21H20ClNO4 |
| Indomethacin Isopropyl Ester | 72616-25-2 | C22H22ClNO4 |
| Indomethacin Methyl Ester | 1601-18-9 | C20H18ClNO4 |
| Indomethacin Related Compound A | 2882-15-7 | C12H13NO3 |
| Indomethacin Related Compound B | 74-11-3 | C7H5ClO2 |
| Indomethacine impurity mixture | 53-86-1 | C19H16ClNO4 |
| Indoramin Hydrochloride Imp. A (BP): 3-(2-Bromoethyl)indole | 3389-21-7 | C10H10BrN |
| Indoramin Hydrochloride Imp. B (BP): N-(1-Benzyl-4-piperidyl)- benzamide | 971-34-6 | C19H22N2O |
| Indoramin Hydrochloride Imp. C (BP): N-(4-Piperidyl)benzamide | 33953-37-6 | C12H16N2O |
| Inosina | 58-63-9 | C10H12N4O5 |
| Insulin | 11061-68-0 | C257H383N65O77S6 |
| Iodixanol EP Impurity C | 171897-74-8 | C33H42I6N6O14 |
| Iodixanol EP Impurity E | 255376-57-9 | C32H38I6N6O13 |
| Iodixanol EP Impurity F | 171897-73-7 | C33H41I5N6O14 |
| Iodixanol EP Impurity G | 171897-72-6 | C35H43I5N6O15 |
| Iodixanol EP Impurity H | Not available | C54H68I9N9O23 |
| Iodixanol EP Impurity I | Not available | C38H50I6N6O17 |
| Iodixanol impurity C | 171897-74-8 | C33H42I6N6O14 |
| Iodixanol impurity E | 255376-57-9 | C32H38I6N6O13 |
| Iodixanol Related Compound D | 89797-00-2 | C20H28I3N3O9 |
| Iodixanol Related Compound E | 255376-57-9 | C32H38I6N6O13 |
| Iodixanol USP Related Compound D | 89797-00-2 | C20H28I3N3O9 |
| Iodometano | 74-88-4 | CH3I |
| Iodomethylsulbactam (Iodomethyl (2S,5R)-3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-Dioxide) | 76247-39-7 | C9H12INO5S |
| Iodoquinol (5,7-Diiodoquinolin-8-ol) | 83-73-8 | C9H5I2NO |
| Iohexol (Iodixanol EP Impurity A) | 66108-95-0 | C19H26I3N3O9 |
| Iohexol EP Impurity A (Iodixanol EP Impurity B) | 31127-80-7 | C16H20I3N3O7 |
| Iohexol EP Impurity B | Not available | C22H32I3N3O11 |
| Iohexol EP Impurity C | 2724765-15-3 | C22H32I3N3O11 |
| Iohexol EP Impurity D | 157739-09-8 | C22H32I3N3O11 |
| Iohexol EP Impurity E | 2727061-52-9 | C22H32I3N3O11 |
| Iohexol EP Impurity F | 1215856-35-1 | C14H19I2N3O6 |
| Iohexol EP Impurity G | Not available | C16H21I2N3O7 |
| Iohexol EP Impurity H | 1651211-79-8 | C19H27I2N3O9 |
| Iohexol EP Impurity I | 196309-19-0 | C17H23I2N3O8 |
| Iohexol EP Impurity J | 76801-93-9 | C14H18I3N3O6 |
| Iohexol EP Impurity K | 35453-19-1 | C8H4I3NO4 |
| Iohexol EP Impurity M | Not available | C17H25I2N3O8 |
| Iohexol EP Impurity N | Not available | C21H28I3N3O10 |
| Iohexol EP Impurity O | 2725999-26-6 | C21H28I3N3O10 |
| Iohexol EP Impurity P | Not available | C21H28I3N3O10 |
| Iohexol EP Impurity Q | Not available | C21H28I3N3O10 |
| Iohexol for peak identification | 66108-95-0 | C19H26I3N3O9 |
| Iohexol impurity A | 31127-80-7 | C16H20I3N3O7 |
| Iohexol impurity J | 76801-93-9 | C14H18I3N3O6 |
| Iohexol impurity J | 76801-93-9 | C14H18I3N3O6 |
| Iohexol Related Compound A | 31127-80-7 | C16H20I3N3O7 |
| Iohexol Related Compound B | 76801-93-9 | C14H18I3N3O6 |
| Iohexol Related Compound C | 76820-34-3 | C14H19N3O8 |
| Iohexol USP related compound C | 76820-34-3 | C14H19N3O8 |
| ionomycin | 56092-81-0 | C41H72O9 |
| Iopamidol EP Impurity A | 60166-98-5 | C14H18I3N3O6 |
| Iopamidol EP Impurity B | 77868-41-8 | C16H20I3N3O8 |
| Iopamidol EP Impurity C | 87932-07-8 | C16H20I3N3O7 |
| Iopamidol EP Impurity D | 87932-11-4 | C14H15I3N2O7 |
| Iopamidol EP Impurity E | 60166-92-9 | C19H24I3N3O9 |
| Iopamidol EP Impurity F | 1869069-71-5 | C16H20I3N3O6 |
| Iopamidol EP Impurity G | 1869069-72-6 | C17H22I3N3O8 |
| Iopamidol EP Impurity H | Not available | C17H22ClI2N3O8 |
| Iopamidol EP Impurity I | Not available | C17H22ClI2N3O8 |
| Iopamidol EP Impurity J | 77868-44-1 | C16H20I3N3O7 |
| Iopamidol EP Impurity K | 1788899-70-6 | C17H23I2N3O8 |
| Iopamidol Impurity 1 | 76349-97-8 | C16H20I3N3O7 |
| Iopamidol impurity A | 60166-98-5 | C14H18I3N3O6 |
| Iopamidol impurity A | 60166-98-5 | C14H18I3N3O6 |
| Iopamidol impurity B | Not available | C16H20I3N3O8 |
| Iopamidol impurity H | Not available | C17H22ClI2N3O8 |
| Iopamidol impurity H | Not available | C17H22ClI2N3O8 |
| Iopamidol Related Compound A (N,N’- Bis-(1,3-dihydroxy-2-propyl)-5-amino-2,4,6-triio- doiso-phthalamide) | Not available | C14H18I3N3O6 |
| Iopamidol Related Compound B | 77868-41-8 | C16H20I3N3O8 |
| Iopamidol Related Compound B (5- Glycolamido-N,N’-bis[2-hydroxy-1-(hydroxy- methyl)ethyl]-2,4,6-triiodoisophthalamide) | Not available | C16H20I3N3O8 |
| Iopromide EP Impurity A | 154361-51-0 | C15H20I3N3O6 |
| Iopromide EP Impurity B | 76350-28-2 | C17H22I3N3O7 |
| Iopromide EP Impurity C | 154361-52-1 | C17H22I3N3O8 |
| Iopromide EP Impurity D | 154361-55-4 | C36H46I6N6O15 |
| Iopromide EP Impurity E | 154397-78-1 | C32H37I6N5O14 |
| Iopromide EP Impurity F | 154361-54-3 | C21H28I3N3O9 |
| Iopromide EP Impurity G | 154361-53-2 | C18H23ClI3N3O7 |
| Iopromide EP Impurity H | 185459-57-8 | C14H15I3N2O7 |
| Iopromide for system suitability 1 | 73334-07-3 | C18H24I3N3O8 |
| Iopromide for system suitability 2 | 73334-07-3 | C18H24I3N3O8 |
| Iopromide Impurity 1 | 219851-74-8 | C16H3Cl3I6N2O4 |
| Iopromide Impurity 2 | 111453-32-8 | C11H11I3N2O5 |
| Iopromide Impurity 6 | 103254-70-2 | C17H22I3N3O8 |
| Iopromide Impurity 12 | 76801-94-0 | C22H26I3N3O10 |
| Iopromide Impurity 14 | 77697-86-0 | C4H11NO2 |
| Iopromide Impurity 17 | 103254-63-3 | C19H26I3N3O8 |
| Iopromide Impurity 18 | 76350-03-3 | C11H6Cl2I3NO4 |
| Iopromide Impurity 20 | 57469-50-8 | C2H3ClO2 |
| Iopromide Impurity 21 | 102356-49-0 | C4H10ClNO |
| Iopromide Impurity 22 | 83804-96-0 | C5H14N2O |
| Iopromide Impurity 23 | 2756222-41-8 | C8H2Cl3I2NO2 |
| Iopromide Impurity 25 | 874302-08-6 | C4H11Cl2NO |
| Iopromide Impurity 38 | 1821027-16-0 | C15H17I3N2O7 |
| Iopromide Impurity 45 | 132327-79-8 | C3H8ClNO |
| Iopromide Impurity 50 | 1613297-04-3 | C8H12O6 |
| Iopromide Impurity 53 | 127324-02-1 | C8H5I2NO4 |
| Iopromide Impurity 54 | 2756222-40-7 | C8H2Cl3I2NO2 |
| Iopromide Impurity 58 | 130930-29-9 | C3H7NO4 |
| Iopromide impurity A | 154361-51-0 | C15H20I3N3O6 |
| Iopromide Related Compound A | 154361-51-0 | C15H20I3N3O6 |
| Iopromide Related Compound B | 76350-28-2 | C17H22I3N3O7 |
| Iotrolan for system suitability | 79770-24-4 | C37H48I6N6O18 |
| Ioversol Impurity 1 | 2061892-21-3 | C20H28I3N3O10 |
| Ioversol impurity 2 | Not available | C20H28I3N3O10 |
| Ioversol impurity 3 | 77868-40-7 | C16H20I3N3O8 |
| Ioversol impurity 5 | 78314-12-2 | C12H6Cl2I3NO5 |
| Ioversol impurity 8 | 155887-14-2 | C24H23Cl5I3N3O11 |
| Ioversol impurity 12 | 134768-85-7 | C15H18I3N3O7 |
| Ioversol impurity 13 | 196309-13-4 | C18H22IN3O9 |
| Ioversol impurity 15 | 872117-56-1 | C11H12I3N3O4 |
| Ioversol impurity 17 | 2253945-67-2 | C16H22I3N3O7 |
| Ioversol Related Compound B | 104517-96-6 | C18H24I3N3O9 |
| Ioversol Related Compound B (N,N’- bis(2,3-dihydroxypropyl)-5-[(N-(2-hydroxyethyl)- carbamoyl)methoxy]-2,4,6-triiodoisophthala- mide) | Not available | C18H24I3N3O9 |
| Ioxaglic acid impurity A | 22871-58-5 | C10H9I3N2O4 |
| Ioxaglic acid impurity A | 22871-58-5 | C10H9I3N2O4 |
| Ipatasertib impurity 1 | 1001382-14-4 | C21H26ClN5O2 |
| Ipilimumab impurity 1 | 691007-05-3 | C12H14F2N2O |
| Ipilimumab impurity 2 | 1016743-93-3 | C12H13F2NO |
| Ipratropium Bromide EP Impurity B | 58073-59-9 | C20H30BrNO3 |
| Ipratropium Bromide EP Impurity F | 17812-46-3 | C20H28BrNO2 |
| Ipratropium Bromide Imp. C (EP): (2RS)-3-Hydroxy-2-phenylpropanoic Acid (dl-Tropic Acid) | 552-63-6 | C9H10O3 |
| Ipratropium Bromide Imp. D (EP): 2-Phenylpropenoic Acid (Atropic Acid) | 492-38-6 | C9H8O2 |
| Ipratropium Bromide Impurity 8 | 5894-79-1 | C10H10O3 |
| Ipratropium Bromide Impurity 9 | 259092-15-4 | C10H19NO |
| Ipratropium Bromide Impurity 10 | 3423-28-7 | C10H17NO |
| Ipratropium Bromide Impurity 11 | 17838-69-6 | C11H12O3 |
