| Carisoprodol Imp. A (EP): (2RS)-2-(Hydroxymethyl)-2- methylpentyl (1-Methylethyl)carbamate | 25462-17-3 | C11H23NO3 |
| Carisoprodol Imp. B (EP): 5-Methyl-5-propyl-1,3-dioxan-2-one | 7148-50-7 | C8H14O3 |
| Carisoprodol Imp. C (EP): 2-Methyl-2-propylpropane-1,3-diol | 78-26-2 | C7H16O2 |
| Carisoprodol Impurity 1 | 7148-50-7 | C8H14O3 |
| Carisoprodol Impurity 2 | 78-26-2 | C7H16O2 |
| Carisoprodol impurity A | 25462-17-3 | C11H23NO3 |
| Carisoprodol impurity A | 25462-17-3 | C11H23NO3 |
| Carisoprodol impurity A | Not available | C12H24N2O4 |
| Carisoprodol Related Compound A | 1471-56-3 | C8H17NO3 |
| Carmoterol | 147568-66-9 | C21H24N2O4 |
| Carmoterol Intermediate | 93609-84-8 | C18H15NO3 |
| Carmustine EP Impurity B | 689-98-5 | C2H6ClN |
| Carmustine impurity A | 2214-72-4 | C5H10Cl2N2O |
| Carmustine impurity A | 2214-72-4 | C5H10Cl2N2O |
| Carmustine Related Compound A | 2214-72-4 | C5H10Cl2N2O |
| Carprofen 1,2,3-Propanetriol Esters (Mixture of Regio- and Stereoisomers) | Not available | C36H36Cl2N2O8 |
| Carprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers) | Not available | C36H36Cl2N2O6 |
| Carprofen 1,3-Butylene Glycol Esters (Mixture of Regio- and Stereoisomers) | Not available | C38H40Cl2N2O6 |
| Carprofen 2,3-Butylene Glycol Ester | Not available | C19H20ClNO3 |
| Carprofen EP Impurity A | 252288-17-8 | C16H12ClNO4 |
| Carprofen EP Impurity B | Not available | C15H13NO2 |
| Carprofen EP Impurity D | 92841-22-0 | C14H10ClNO |
| Carprofen EP Impurity E | Not available | C12H8ClN |
| Carprofen EP Impurity F | 71208-55-4 | C20H20ClNO4 |
| Carprofen EP Impurity G | 52262-89-2 | C17H16ClNO2 |
| Carprofen EP Impurity H | 92841-23-1 | C14H12ClN |
| Carprofen Ethyl Ester (Carprofen Impurity) | 52262-89-2 | C17H16ClNO2 |
| Carprofen for system suitability | 53716-49-7 | C15H12ClNO2 |
| Carprofen Imp. G (EP): Ethyl (2RS)-2-(6-Chloro-9H-carbazol-2-yl) propanoate (Carprofen Ethyl Ester) | 52262-89-2 | C17H16ClNO2 |
| Carprofen Impurity 9 | 114041-33-7 | C17H14ClNO2 |
| Carprofen Impurity 10 | 70359-62-5 | C15H12ClNO3 |
| Carprofen Isopropyl Ester | Not available | C18H18ClNO2 |
| Carprofen Methyl Ester | 52263-88-4 | C16H14ClNO2 |
| Carprofen Related Compound A | 86-74-8 | C12H9N |
| Carteolol EP Impurity F | Not available | C13H17NO4 |
| Carteolol EP Impurity G | 54945-72-1 | C12H15NO4 |
| Carteolol EP impurity H | 62330-84-1 | C16H22N2O3 |
| Carteolol EP Impurity I | Not available | C16H23BrN2O3 |
| Carteolol EP impurity I | 2748462-62-4 | C16H23BrN2O3 |
| Carteolol for system suitability | 51781-21-6 | C16H25ClN2O3 |
| Carteolol HCl | 51781-21-6 | C16H25ClN2O3 |
| Carteolol HCl EP Impurity A | 5057-12-5 | C9H11NO2 |
| Carteolol HCl EP Impurity C | 51781-14-7 | C12H13NO3 |
| Carteolol HCl EP Impurity D | 51781-13-6 | C12H14ClNO3 |
| Carteolol HCl EP Impurity E | 56660-90-3 | C21H22N2O5 |
| Carteolol HCl EP Impurity H | 53371-79-2 | C16H23ClN2O3 |
| Carteolol Impurity 1 | 2096457-13-3 | C6H10N2 |
| Carteolol Impurity 2 | 400873-28-1 | C9H13NO3 |
| Carteolol Impurity 3 | 2748462-60-2 | C13H17NO4 |
| Carteolol Impurity 4 | 23674-56-8 | C8H11NO2 |
| Carteolol Impurity 10 | 34685-03-5 | C11H13NO2 |
| Carteolol Impurity 11 | 15450-69-8 | C9H9NO2 |
| Carteolol Impurity 11 | 31570-97-5 | C9H7NO2 |
| Carvedilol Biscarbazole | 918903-20-5 | C39H39N3O6 |
| Carvedilol for system suitability | 72956-09-3 | C24H26N2O4 |
| Carvedilol Glucosidic Acid | 114869-83-9 | C30H34N2O10 |
| Carvedilol Hydrochloride | 72956-36-6 | C25H29ClN2O4 |
| Carvedilol Imp. A (EP): 1-[[9-[2-Hydroxy-3-[[2-(2-methoxy- phenoxy)ethyl]amino]propyl]-9H-carbazol-4- yl]oxy]-3-[[2-(2-methoxyphenoxy)ethyl]amino]- propan-2-ol | 1198090-73-1 | C36H43N3O7 |
| Carvedilol Imp. B (EP): 1,1'-[[2-(2-Methoxyphenoxy)ethyl]- nitrilo]bis[3-(9H-carbazol-4-yloxy)propan-2-ol] | 918903-20-5 | C39H39N3O6 |
| Carvedilol Imp. C (EP): (2RS)-1-[Benzyl[2-(2-methoxy- phenoxy)ethyl]amino]-3-(9H-carbazol-4- yloxy)propan-2-ol | 72955-94-3 | C31H32N2O4 |
| Carvedilol Imp. D (EP): 1-(9H-Carbazol-4-yloxy)-3-[4-[2-hydroxy-3-[[2-(2- methoxyphenoxy)ethyl]amino]propoxy]-9H-carbazol-9-yl] propan-2-ol | 1391052-16-6 | C39H39N3O6 |
| Carvedilol Impurity 1 | 72955-92-1 | C30H30N2O4 |
| Carvedilol Impurity 3 | 887352-95-6 | C31H32N2O5 |
| Carvedilol Impurity 5 | 933442-50-3 | C24H24N2O4 |
| Carvedilol Impurity 6 | 72956-35-5 | C25H28N2O4 |
| Carvedilol Impurity 7 | 1346599-33-4 | C25H29ClN2O4 |
| Carvedilol Impurity 10 | 142227-49-4 | C24H26N2O5 |
| Carvedilol Impurity 11 | 120606-08-8 | C16H20ClNO2 |
| Carvedilol Impurity 12 | 1059573-45-3 | C33H36N2O6 |
| Carvedilol Impurity 19 | 72956-44-6 | C23H24N2O4 |
| Carvedilol Impurity 19 | 1059573-38-4 | C24H26N2O5 |
| Carvedilol Impurity 20 | 1346602-98-9 | C40H42N4O6 |
| Carvedilol Impurity 21 | 1187921-93-2 | C15H14ClNO2 |
| Carvedilol Impurity 21 | 123372-13-4 | C23H24N2O4 |
| Carvedilol Impurity 22 | 53815-60-4 | C9H11ClO2 |
| Carvedilol Impurity 23 | 206647-27-0 | C12H13NO |
| Carvedilol Impurity 25 | 1076199-79-5 | C36H43N3O7 |
| Carvedilol Impurity 47 | 95093-95-1 | C15H13NO2 |
| Carvedilol Impurity 49 | 64464-07-9 | C9H14ClNO2 |
| Carvedilol Impurity 50 | 72955-82-9 | C10H15NO2 |
| Carvedilol Impurity A | 1198090-73-1 | C36H43N3O7 |
| Carvedilol Impurity B | 918903-20-5 | C39H39N3O6 |
| Carvedilol impurity C | 72955-94-3 | C31H32N2O4 |
| Carvedilol Impurity COH | 51997-50-3 | C15H13NO2 |
| Carvedilol Impurity DA | 50800-92-5 | C9H13NO2 |
| Carvedilol Impurity DB | 553-45-7 | C16H18O4 |
| Carvedilol Impurity DBA | 3258-70-6 | C18H23NO4 |
| Carvedilol Impurity DH | 1198090-71-9 | C18H17NO3 |
| Carvedilol Impurity DP | 1276477-91-8 | C27H22N2O3 |
| Carvedilol Impurity E | 1836-62-0 | C9H13NO2 |
| Carvedilol Impurity ED | 1391052-16-6 | C39H39N3O6 |
| Carvedilol Impurity H | 18181-71-0 | C9H12O3 |
| Carvedilol Impurity IP | 1246819-01-1 | C27H32N2O4 |
| Carvedilol Impurity JA | 6487-86-1 | C9H13NO2 |
| Carvedilol Impurity TC | 123119-89-1 | C15H15NO3 |
| Carvedilol Impurity USP-F | 1246820-73-4 | C24H30N2O4 |
| Carvedilol Impurity XA | 26646-63-9 | C17H15NO4 |
| Carvedilol Intermediate 2 | 52602-39-8 | C12H9NO |
| Carvedilol Related Compound C | 72955-94-3 | C31H32N2O4 |
| Carvedilol Related Compound D | 51997-51-4 | C15H13NO2 |
| Carvedilol-001 | 1479052-24-8 | C26H30N2O4 |
| Carvedilol-002 | 933442-47-8 | C25H28N2O4 |
| Casein BRP | 9000-71-9 | C81H125N22O39P |
| Caspofungin | 162808-62-0 | C52H88N10O15 |
| Caspofungin Impurity 15 | 1404083-47-1 | C52H86N10O16 |
| Caspofungin Impurity 21 | Not available | C52H88N10O15 |
| Caspofungin Impurity B | Not available | C52H88N10O15 |
| Caspofungin Impurity E | 150283-04-8 | C50H82N8O16 |
| Caspofungin Pneumocandin B0 | 135575-42-7 | C50H80N8O17 |
| Cathepsin G inhibitor I | 429676-93-7 | C36H33N2O6P |
| Cediranib | 1198300-79-6 | C20H27N7O3S |
| Cediranib impurity 14 | 1450758-24-3 | C14H15N5O6S2 |
| Cediranib impurity 19 | 327612-01-1 | C7H8N4O3S |
| Cefaclor Dimer Impurity | 142975-51-7 | C30H26Cl2N6O7S2 |
| Cefaclor EP Impurity A | 875-74-1 | C8H9NO2 |
| Cefaclor EP Impurity B | 53994-69-7 | C7H7ClN2O3S |
| Cefaclor EP Impurity D | 152575-13-8 | C15H14ClN3O4S |
| Cefaclor EP Impurity F | 2882-18-0 | C10H8N2O |
| Cefaclor EP Impurity F | 73200-73-4 | C10H8N2O |
| Cefaclor EP Impurity G | 67308-21-8 | C16H17N3O4S |
| Cefaclor EP Impurity H | Not available | C23H21ClN4O5S |
| Cefaclor Imp. A (EP): (2R)-2-Amino-2-phenylacetic Acid (D-Phenylglycine) | 875-74-1 | C8H9NO2 |
| Cefaclor Imp. D (EP): (2R,6R,7R)- and (2S,6R,7R)-7-[[(2R)-2- Amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia- 1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic Acid (delta-3-Cefaclor) | 152575-13-8 | C15H14ClN3O4S |
| Cefaclor Imp. F (EP): 3-Phenylpyrazin-2-ol | 73200-73-4 | C10H8N2O |
| Cefaclor Impurity 9 | 6485-67-2 | C8H10N2O |
| Cefaclor Impurity K | 21746-02-1 | C10H10N2O2 |
| Cefaclor, Delta-3 isomer | 152575-13-8 | C15H14ClN3O4S |
| Cefadroxil Dimer | Not available | C32H32N6O9S2 |
| Cefadroxil EP Impurity A | 938-97-6 | C8H9NO3 |
| Cefadroxil EP Impurity C | 147103-96-6 | C16H19N3O6S |
| Cefadroxil EP Impurity D | 144790-28-3 | C16H17N3O5S |
| Cefadroxil EP Impurity E (Cefprozil EP Impurity C) | 147103-93-3 | C11H11N3O3 |
| Cefadroxil Hemihydrate | 119922-85-9 | C32H36N6O11S2 |
| Cefadroxil Impurity 3 | 79962-91-7 | C16H17N3O5S |
| Cefadroxil Impurity 5 | 182290-77-3 | C16H17N3O6S |
| Cefadroxil Impurity 6 | 2378158-45-1 | C32H32N6O9S2 |
| Cefadroxil Impurity 8 | 2243976-70-5 | C17H19N3O5S |
| Cefadroxil Impurity 9 | 26531-82-8 | C9H11NO3 |
| Cefadroxil Impurity 10 | 2378158-44-0 | C19H21N3O7S |
| Cefadroxil Impurity 14 | 36765-61-4 | C10H12N2O4S |
| Cefadroxil Impurity 17 | 700-63-0 | C8H10N2O |
| Cefadroxil Impurity 25 | 883835-57-2 | C9H12O3S |
| Cefadroxil Impurity G | Not available | C5H6O2S |
| Cefadroxil Monohydrate Imp. A (EP): (2R)-2-Amino-2-(4-hydroxyphenyl)- acetic Acid | 22818-40-2 | C8H9NO3 |
| Cefadroxil Monohydrate Imp. B (EP): (6R,7R)-7-Amino-3-methyl-8-oxo- 5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid (7-ADCA; 7-Aminodesacetoxycephalosporanic Acid) | 22252-43-3 | C8H10N2O3S |
| Cefadroxil Related Compound B | 22252-43-3 | C8H10N2O3S |
| Cefadroxil Related Compound D | 144790-28-3 | C16H17N3O5S |
| Cefadroxil Related Compound I | 147103-94-4 | C16H17N3O5S |
| Cefadroxil USP Impurity G | 147103-94-4 | C16H17N3O5S |
| Cefadroxil-D4 Hydrate | 1426174-38-0 | C16H19N3O6S |
| Cefalexin | 23325-78-2 | C16H19N3O5S |
| Cefalexin EP Impurity D | 34876-35-2 | C5H6O2S |
| Cefalexin EP Impurity F | 79750-46-2 | C16H17N3O4S |
| Cefalexin EP Impurity G | 72820-16-7 | C11H14N2O5S |
| Cefalexin Impurity 7 | 59865-11-1 | C16H17N3O4S |
| Cefalexin Impurity 7 (hydrochloride) | 19883-41-1 | C9H12ClNO2 |
| Cefalexin impurity C | 72528-40-6 | C24H24N4O5S |
| Cefalexin impurity L | 34632-04-7 | C16H17N3O4S |
| Cefalexin Monohydrate Imp. A (EP): (2R)-2-Amino-2-phenylacetic Acid (D-Phenylglycine) | 875-74-1 | C8H9NO2 |
| Cefalexin Monohydrate Imp. B (EP): (6R,7R)-7-Amino-3-methyl-8-oxo- 5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid (7-Aminodesacetoxycephalosporanic Acid; 7-ADCA) | 22252-43-3 | C8H10N2O3S |
| Cefaloglycin | 3577-01-3 | C18H19N3O6S |
| Cefalotin | 153-61-7 | C16H16N2O6S2 |
| Cefalotin for impurity B identification | 58-71-9 | C16H15N2NaO6S2 |
| Cefalotin Impurity 2 | 88837-50-7 | C16H16N2O7S2 |
| Cefalotin Impurity 7 | 93808-81-2 | C16H15ClN2O6S2 |
| Cefalotin Impurity A | 34691-02-6 | C14H14N2O4S2 |
| Cefalotin Impurity B | 5935-65-9 | C14H14N2O5S2 |
| Cefathiamidine Impurity 1 | 958001-61-1 | C17H26N4O5S2 |
| Cefathiamidine Impurity 2 | 26973-80-8 | C12H13BrN2O6S |
| Cefathiamidine Impurity 4 | 1418224-75-5 | C10H11BrN2O5S |
| Cefathiamidine Impurity 5 | 26924-74-3 | C14H19N3O6S |
| Cefathiamidine Impurity 6 | 28240-16-6 | C12H13ClN2O6S |
| Cefathiamidine Impurity 7 | 28307-26-8 | C12H12Cl2N2O6S |
| Cefathiamidine Impurity 8 | 1417570-09-2 | C17H26N4O4S2 |
| Cefathiamidine Impurity 9 | 2986-17-6 | C7H16N2S |
| Cefathiamidine Impurity 11 | 744191-99-9 | C9H18N2O2S |
| Cefatiaxone | 73384-59-5 | C18H18N8O7S3 |
| Cefatrizine impurity A | 37539-03-0 | C10H11N5O3S2 |
| Cefatrizine impurity A | 37539-03-0 | C10H11N5O3S2 |
| Cefazolin EP Impurity B | 1798390-48-3 | C16H20N4O4S3 |
| Cefazolin EP Impurity B | Not available | C16H20N4O4S3 |
| Cefazolin EP Impurity B (Sodium salt) | 1798004-55-3 | C16H19N4NaO4S3 |
| Cefazolin EP Impurity D (Sodium salt) | 27164-45-0 | C13H13N6NaO6S |
| Cefazolin EP Impurity G | 1172998-53-6 | C11H10N6O4S |
| Cefazolin EP Impurity K | Not available | C14H15N9O3S3 |
| Cefazolin EP Impurity K | 2410652-70-7 | C14H15N9O3S3 |
| Cefazolin EP Impurity L | Not available | C14H14N8O4S3 |
| Cefazolin Impurity 4 (Dimeric 7-ACA) | 2416213-67-5 | C18H20N4O8S2 |
| Cefazolin Impurity 9 | 1322626-65-2 | C14H15N9O3S3 |
| Cefazolin Impurity 10 | 18884-65-6 | C10H12N2O5S |
| Cefazolin Impurity 11 | 15690-38-7 | C8H10N2O4S |
| Cefazolin Impurity 12 | 184696-69-3 | C8H8N2O3S |
| Cefazolin Impurity 12 | 2364623-02-7 | C14H16N8O5S3 |
| Cefazolin Impurity 13 | 1797135-60-4 | C5H7N5O2 |
| Cefazolin Impurity 14 | 1798390-47-2 | C16H20N4O4S3 |
| Cefazolin Impurity 15 | 1809086-26-7 | C7H13N5O3 |
| Cefazolin Impurity 19 | 26395-99-3 | C8H10N2O3S |
| Cefazolin Impurity 34 | 66338-95-2 | C6H8ClNO4 |
| Cefazolin Impurity 37 | 637-81-0 | C4H7N3O2 |
| Cefazolin Impurity 39 | 13616-37-0 | C5H8N4O2 |
| Cefazolin Impurity 42 | 21743-64-6 | C3H4N4O2 |
| Cefazolin Impurity 43 | 66666-63-5 | C6H6N4S4 |
| Cefazolin Impurity 44 | 20198-75-8 | C4H8N2OS2 |
| Cefazolin Impurity 50 | 26240-90-4 | C5H8N4O2 |
| Cefazolin Impurity 58 | 21743-75-9 | C3H4N4O2 |
| Cefazolin Impurity 59 | 55390-53-9 | C14H14N8O4S3 |
| Cefazolin Impurity B | 22252-43-3 | C8H10N2O3S |
| Cefazolin Impurity E | 29490-19-5 | C3H4N2S2 |
| Cefazolin Impurity EP-A | 30246-33-4 | C11H12N4O3S3 |
| Cefazolin Impurity EP-E | 29490-19-5 | C3H4N2S2 |
| Cefazolin Impurity EP-H | 957-68-6 | C10H12N2O5S |
| Cefazolin Impurity H | 957-68-6 | C10H12N2O5S |
| Cefazolin Sodium Imp. E (EP): 5-Methyl-1,3,4-thiadiazol-2-thiol (MMTD) | 29490-19-5 | C3H4N2S2 |
| Cefazolin Sodium Imp. H (EP): (6R,7R)-3-[(Acetyloxy)methyl]-7- amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2- ene-2-carboxylic Acid (7-ACA) | 957-68-6 | C10H12N2O5S |
| Cefazolin sodium impurity C | 56842-77-4 | C11H12N6O4S |
| Cefazolin sodium impurity D | 32510-61-5 | C13H14N6O6S |
| Cefazolin sodium pentahydrate | 115850-11-8 | C14H23N8NaO9S3 |
| Cefazolin Sodium Salt | 27164-46-1 | C14H13N8NaO4S3 |
| Cefazolin Sulfoxide Impurity | 55633-21-1 | C14H14N8O5S3 |
| Cefazolin USP Impurity B | 1675245-47-2 | C5H9N5O3 |
| Cefazolin USP Impurity E | 478494-71-2 | C11H12N6O5S |
| Cefazolin △2-Methyl Ester | 79239-19-3 | C16H18N8O3S3 |
| Cefazolin △3-Methyl Ester | 117929-10-9 | C15H16N8O4S3 |
| CefazolinImpurityEP-J | 1675245-00-7 | C11H12N6O5S |
| Cefcapene | 135889-00-8 | C17H19N5O6S2 |
| Cefcapene Impurity 6 | 86978-24-7 | C13H18N2O4S |
| Cefcapene Pivoxil | 105889-45-0 | C23H29N5O8S2 |
| Cefcapene Pivoxil (Hydrochloride) | 147816-23-7 | C23H30ClN5O8S2 |
| Cefcapene pivoxil hydrochloride | 147816-24-8 | C23H32ClN5O9S2 |
| Cefcapene pivoxil Impurity 1 | Not available | C16H16N4O4S2 |
| Cefcapene pivoxil Impurity 2 | Not available | C23H29N5O8S2 |
| Cefcapene pivoxil Impurity 3 | Not available | C23H29N5O8S2 |
| Cefcapene pivoxil Impurity 5 | Not available | C39H45N9O12S4 |
| Cefcapene pivoxil Impurity 6 | Not available | C23H29N5O9S2 |
| Cefcapene pivoxil Impurity 7 | Not available | C23H31N5O9S2 |
| Cefcapene pivoxil Impurity 8 | Not available | C22H28N4O7S2 |
| Cefcapene pivoxil Impurity 9 | Not available | C24H30N4O8S2 |
| Cefcapene pivoxil Impurity 11 | 105889-80-3 | C28H37N5O10S2 |
| Cefcapene pivoxil Impurity 17 | 107185-27-3 | C23H28N4O8S2 |
| Cefcapene pivoxil Impurity 24 | Not available | C39H45N9O12S4 |
| Cefcapene pivoxil Impurity 31 | 1360188-88-0 | C21H24N4O6S2 |
| Cefdinir glyoxalic analog | 79350-14-4 | C14H12N4O5S2 |
| Cefdinir Impurity A | 1450758-21-0 | C5H6N4O2S |
| Cefdinir Impurity B | 79350-10-0 | C14H14N4O4S2 |
| Cefdinir Impurity D | 934986-48-8 | C14H13N5O6S2 |
| Cefdinir Impurity F | 934986-49-9 | C14H13N5O5S2 |
| Cefdinir Impurity S | 127770-93-8 | C16H15N5O6S2 |
| Cefdinir Isoxazole Analog | 1330164-22-1 | C13H11N3O6S |
| Cefdinir Related Compound B | 79350-10-0 | C14H14N4O4S2 |
| Cefdinir Thiazine Analog | 178422-39-4 | C14H15N5O6S2 |
