| o-Torasemide (1-(1-Methylethyl)-3-[[4-[(2-methylphenyl)amino]pyridin-3-yl]sulfonyl]urea) | 106944-62-1 | C16H20N4O3S |
| O-Triphenylmethoxy Quetiapine | 844639-06-1 | C40H39N3O2S |
| Obeticholic Acid | 459789-99-2 | C26H44O4 |
| Obeticholic acid 3-O-β-D-glucuronide | 2270232-93-2 | C32H52O10 |
| Obeticholic Acid Impurity 3 | 1708092-13-0 | C26H44O4 |
| Obeticholic Acid Impurity 7 | 30634-99-2 | C24H40O4 |
| Obeticholic Acid Impurity 8 | 863239-60-5 | C28H47NO5 |
| Obeticholic Acid Impurity 9 | 863239-61-6 | C28H49NO6S |
| Obeticholic Acid Impurity 10 | 1537866-49-1 | C26H46O3 |
| Obeticholic Acid Impurity 11 | 1908444-28-9 | C52H86O7 |
| Obeticholic Acid Impurity 12 | 1885104-64-2 | C26H42O4 |
| Obeticholic Acid Impurity 16 | 10452-65-0 | C27H42O5 |
| Obeticholic Acid Impurity 18 | 2241648-47-3 | C29H44O5 |
| Obeticholic Acid Impurity 19 | 915038-24-3 | C26H40O4 |
| Obeticholic Acid Impurity 26 | 1516887-34-5 | C26H40O4 |
| Obeticholic Acid Impurity 29 | 1831863-02-5 | C26H44O4 |
| Obeticholic Acid Impurity 30 | 915038-25-4 | C26H42O4 |
| Obeticholic Acid Impurity 31 | 1834605-28-5 | C26H40O4 |
| Obeticholic Acid Impurity 44 | 459789-98-1 | C28H48O4 |
| Obeticholic Acid Impurity 48 | 951694-73-8 | C27H46O4 |
| Obeticholic Acid Impurity C | 915038-27-6 | C26H44O4 |
| Obeticholic Acid Intermediate 2 | 10538-59-7 | C25H40O4 |
| Obeticholic Acid Intermediate G | 915038-26-5 | C26H42O4 |
| Obeticholic Acid Methyl Ester | 951694-73-8 | C27H46O4 |
| Obeticholic Acid-D5 | 1992000-80-2 | C26H44O4 |
| Octahydrocyclopenta[c]pyrrole Hydrochloride | 112626-50-3 | C7H14ClN |
| Octreotide acetate impurity C | 1546983-16-7 | C50H68N10O11S2 |
| Octreotide acetate impurity D | 79486-60-5 | C45H58N10O8S2 |
| Octreotide acetate impurity E | 1546983-27-0 | C49H66N10O10S3 |
| Octreotide acetate impurity F | 133304-81-1 | C51H68N10O11S2 |
| Octreotide acetate impurity H | 1546983-33-8 | C51H68N10O11S2 |
| Octreotide EP Impurity I | 83795-61-3 | C51H68N10O11S2 |
| Octreotide impurity mixture | 83150-76-9 | C49H66N10O10S2 |
| Octreotide Non-Cyclic System Suitability Marker | 774239-80-4 | C52H73N11O11S2 |
| Ofloxacin EP Impurity A | 82419-35-0 | C13H9F2NO4 |
| Ofloxacin EP Impurity B | 123155-82-8 | C17H20FN3O2 |
| Ofloxacin EP Impurity C | 95848-94-5 | C18H21N3O4 |
| Ofloxacin EP Impurity D | 197291-75-1 | C18H20FN3O4 |
| Ofloxacin EP Impurity E | 82419-52-1 | C17H18FN3O4 |
| Ofloxacin EP Impurity F | 104721-52-0 | C18H21ClFN3O5 |
| Ofloxacin Ethyl Ester | 107884-32-2 | C20H24FN3O4 |
| Ofloxacin Imp. A (EP): (RS)-9,10-Difluoro-3-methyl-7-oxo- 2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine- 6-carboxylic Acid (FPA) | 82419-35-0 | C13H9F2NO4 |
| Ofloxacin Imp. B (EP): (RS)-9-Fluoro-3-methyl-10-(4- methylpiperazin-1-yl)-2,3-dihydro-7H-pyrido- [1,2,3-de]-1,4-benzoxazin-7-one | 123155-82-8 | C17H20FN3O2 |
| Ofloxacin Imp. E (EP): (RS)-9-Fluoro-3-methyl-7-oxo-10- (piperazin-1-yl)-2,3-dihydro-7H-pyrido[1,2,3- de]-1,4-benzoxazine-6-carboxylic Acid | 82419-52-1 | C17H18FN3O4 |
| Ofloxacin impurity A | 82419-35-0 | C13H9F2NO4 |
| Ofloxacin impurity D | 197291-75-1 | C18H20FN3O4 |
| Ofloxacin impurity D CRS | Not available | C18H20FN3O4 |
| Ofloxacin impurity E | 82419-52-1 | C17H18FN3O4 |
| Ofloxacin Isopropyl Ester | 126911-77-1 | C21H26FN3O4 |
| Ofloxacin Methyl Ester | 108224-82-4 | C19H22FN3O4 |
| Ofloxacin N-Oxide Hydrochloride | 2731368-77-5 | C18H21ClFN3O5 |
| Olanexidine | 146510-36-3 | C17H27Cl2N5 |
| Olanexidine Impurity1 | 109435-08-7 | C13H17Cl3N4 |
| Olanexidine Impurity3 | 73728-66-2 | C7H8Cl3N |
| Olanexidine Impurity5 | 5635-67-6 | C8H9Cl2N |
| Olanexidine Impurity6 | 49552-34-3 | C7H8Cl3N |
| Olanzapine EP impurity L | 138564-61-1 | C17H22N4OS |
| Olanzapine for system suitability | 132539-06-1 | C17H20N4S |
| Olanzapine Imp. A (EP): 5-Methyl-2-[(2-nitrophenyl)- amino]thiophene-3-carbonitrile | 138564-59-7 | C12H9N3O2S |
| Olanzapine Imp. B (EP): 2-Methyl-5,10-dihydro-4H- thieno[2,3-b][1,5]benzodiazepin-4-one (Olanzapine Lactame) | 221176-49-4 | C12H10N2OS |
| Olanzapine Imp. C (EP): 1-(Chloromethyl)-1-methyl-4-(2- methyl-10H-thieno[2,3-b][1,5]benzodiazepin- 4-yl)piperazin-1-ium Chloride (Olanzapine-N- Chloromethyl Chloride) | 719300-59-1 | C18H22Cl2N4S |
| Olanzapine Imp. D (EP): 1-Methyl-4-(2-methyl-10H-thieno- [2,3-b][1,5]benzodiazepin-4-yl)piperazin-1-oxide (Olanzapine N-Oxide) | 174794-02-6 | C17H20N4OS |
| Olanzapine impurity 3 (Olanzapine EP Impurity E) | 1017241-36-9 | C17H20N4OS |
| Olanzapine impurity 7 | 2518067-58-6 | C17H20N4OS |
| Olanzapine impurity 8 | 639460-79-0 | C17H18N4OS |
| Olanzapine impurity 9 | 935272-10-9 | C18H20N4OS |
| Olanzapine impurity A | 138564-59-7 | C12H9N3O2S |
| Olanzapine impurity B | 221176-49-4 | C12H10N2OS |
| Olanzapine impurity C | 719300-59-1 | C18H22Cl2N4S |
| Olanzapine impurity D | 174794-02-6 | C17H20N4OS |
| Olanzapine impurity E | 138564-60-0 | C12H12ClN3S |
| Olanzapine impurity F | 161696-76-0 | C16H18N4S |
| Olanzapine impurity Q | 1320360-87-9 | C17H20N4O2S |
| Olanzapine impurity R | 1320360-86-8 | C15H18N4OS |
| Olanzapine impurity SA | 138564-58-6 | C6H6N2S |
| Olanzapine Lactame | 221176-49-4 | C12H10N2OS |
| Olanzapine N-Oxide | 174794-02-6 | C17H20N4OS |
| Olanzapine Related Compound A | 138564-59-7 | C12H9N3O2S |
| Olanzapine Related Compound C | 174794-02-6 | C17H20N4OS |
| Olaparib Impurity 1 | 763113-06-0 | C24H24N4O3 |
| Olaparib Impurity 2 | 2409514-28-7 | C16H11FO5 |
| Olaparib Impurity 3 | 61260-15-9 | C10H11O5P |
| Olaparib Impurity 4 | 1021298-68-9 | C16H10FN3O |
| Olaparib Impurity 5 | 16859-59-9 | C8H6O3 |
| Olaparib Impurity 6 | 179897-89-3 | C7H3BrFN |
| Olaparib Impurity 7 (Avatroposide impurities35) | 57260-71-6 | C9H18N2O2 |
| Olaparib Impurity 8 | 1759-53-1 | C4H6O2 |
| Olaparib Impurity 9 | 414910-15-9 | C13H22N2O3 |
| Olaparib Impurity 10 | 2415448-60-9 | C18H16FN3O2 |
| Olaparib Impurity 11 | 2630919-53-6 | C16H10FNO3 |
| Olaparib Impurity 12 | 2250242-62-5 | C36H28F2N6O4 |
| Olaparib Impurity 13 | 2250243-17-3 | C24H25FN4O3 |
| Olaparib Impurity 14 | 420846-72-6 | C16H12N2O3 |
| Olaparib Impurity 15 | 763111-47-3 | C20H19FN4O2 |
| Olaparib Impurity 18 | 164149-28-4 | C8H4FNO2 |
| Olaparib Impurity 25 | 1423030-11-8 | C16H9FO4 |
| Olaparib Impurity 30 | 1460272-52-9 | C24H21FN4O4 |
| Olaparib Impurity 31 | 458535-34-7 | C12H18N2O2 |
| Olaparib Impurity 33 | 550363-85-4 | C8H5FO3 |
| Olaparib Impurity 38 | 632-22-4 | C5H12N2O |
| Olaparib Impurity 39 | 59878-57-8 | C8H14N2O |
| Olaparib Impurity 43 | 64579-56-2 | C10H18N2O |
| Olaparib Impurity 46 | Not available | C16H13N5O |
| Olaparib Impurity 47 | 39968-33-7 | C5H4N4O |
| Olaparib Impurity 56 | 1956324-57-4 | C17H14N2O4 |
| Olaparib Impurity 58 | 848136-41-4 | C22H21FN4O3 |
| Olaparib Impurity 62 | 76816-54-1 | C7H14N2O |
| Olaparib Impurity 63 | 71260-16-7 | C8H16N2O |
| Olaparib Impurity 64 | 155295-47-9 | C9H18N2O |
| Olaparib Impurity 69 | 1956340-97-8 | C16H12FN3O2 |
| Olaparib Impurity 70 | 763114-04-1 | C25H27FN4O4 |
| Olaparib Impurity 73 | 42086-68-0 | C16H9NO2 |
| Olaparib Impurity 74 | 42086-73-7 | C16H9NO2 |
| Olaparib Impurity 75 | 2377912-28-0 | C16H8FNO2 |
| Olaparib Impurity 82 | 477535-39-0 | C7H3Br2FO |
| Olaparib Impurity 83 | 1806327-68-3 | C7H3Br2FO |
| Olaparib Impurity 86 | 2385199-47-1 | C8H3BrFNO |
| Olaparib Impurity 87 | 2691818-05-8 | C9H3FN2O |
| Olaparib Intermediate 1 | 763114-26-7 | C16H11FN2O3 |
| Olaparib Metabolite M15 | 1460272-53-0 | C24H23FN4O4 |
| Olaparib-D5 | 2143107-56-4 | C24H23FN4O3 |
| oleanolic acid impurity 3 | 173991-81-6 | C30H46O4 |
| oleanolic acid impurity 4 | 79157-62-3 | C31H48O3 |
| Oliveolin-4 '-O-glucoside | 76880-93-8 | C26H34O12 |
| Olmesartan Acid | 144689-24-7 | C24H26N6O3 |
| Olmesartan Acid Ethyl Ester | 144689-23-6 | C26H30N6O3 |
| Olmesartan Lactone Impurity | 849206-43-5 | C24H24N6O2 |
| Olmesartan Medoxomil Dimer Impurity1 | 1040250-19-8 | C48H50N12O5 |
| Olmesartan Medoxomil Imp. A (EP): 4-(1-Hydroxy-1-methylethyl)-2-propyl-1-[[2'-(1H- tetrazol-5-yl)biphenyl-4-yl]methyl]-1H-imidazole-5-carboxylic Acid (Olmesartan) | 144689-24-7 | C24H26N6O3 |
| Olmesartan Medoxomil Impurity 24 (Losartan Impurity 9) | 124750-53-4 | C33H26N4 |
| Olmesartan Medoxomil Impurity 25 (Losartan Impurity 7) | 358685-13-9 | C33H24Br2N4 |
| Olmesartan Medoxomil Impurity 26 | 2101308-73-8 | C44H40N6O3 |
| Olmesartan Medoxomil Impurity 27 | 2101308-74-9 | C44H40N6O3 |
| Olmesartan Medoxomil Impurity 28 | 144690-04-0 | C10H16N2O3 |
| Olmesartan Medoxomil Impurity 29 | 1127249-17-5 | C14H10Br2N4 |
| Olmesartan Medoxomil Impurity 30 | 144690-33-5 | C45H44N6O3 |
| Olmesartan Medoxomil Impurity 32 | 1040405-56-8 | C49H46N6O6 |
| Olmesartan Medoxomil Impurity 32 | 124750-51-2 | C33H25BrN4 |
| Olmesartan Medoxomil Impurity 33 | 1227626-50-7 | C44H42N6O2 |
| Olmesartan Medoxomil Impurity 35 | 129482-56-0 | C5H6Cl2O3 |
| Olmesartan Medoxomil Impurity 36 | 95579-71-8 | C5H5ClO3 |
| Olmesartan Medoxomil Impurity 37 | 116857-04-6 | C5H6Cl2O3 |
| Olmesartan Medoxomil Impurity 38 | 1418133-31-9 | C53H54N12O8 |
| Olmesartan Medoxomil Impurity 39 | 144689-63-4 | C29H30N6O6 |
| Olmesartan Medoxomil Impurity 39 | 144690-07-3 | C11H16N2O3 |
| Olmesartan Medoxomil Impurity 41 | 1092980-84-1 | C13H22N2O3 |
| Olmesartan Medoxomil Impurity 42 | 157356-73-5 | C12H18N2O2 |
| Olmesartan Medoxomil Impurity 43 | 116857-05-7 | C5H6Cl2O3 |
| Olmesartan Medoxomil Impurity 44 | 1443544-27-1 | C5H4Cl2O3 |
| Olmesartan Medoxomil Impurity 45 | 1391052-99-5 | C48H42N6O5 |
| Olmesartan Medoxomil Impurity 48 | 1378863-74-1 | C30H32N6O6 |
| Olmesartan Medoxomil Impurity 56 | 80841-78-7 | C5H5ClO3 |
| Olmesartan Medoxomil Impurity A | 144689-24-7 | C24H26N6O3 |
| Olmesartan Medoxomil Impurity B | 849206-43-5 | C24H24N6O2 |
| Olmesartan Medoxomil Impurity C | 879562-26-2 | C29H28N6O5 |
| Olmesartan Medoxomil Impurity E | 144689-78-1 | C30H32N6O6 |
| Olmesartan Medoxomil Impurity F | 1227626-51-8 | C48H42N6O5 |
| Olmesartan Medoxomil Impurity G | 1048948-15-7 | C43H38N6O2 |
| Olmesartan Medoxomil Impurity H | 172875-53-5 | C13H22N2O3 |
| Olmesartan Medoxomil Impurity J | 1039762-40-7 | C25H28N6O3 |
| Olmesartan Medoxomil Impurity K | 896419-17-3 | C30H32N6O6 |
| Olmesartan Medoxomil Impurity L | 1347262-29-6 | C25H28N6O3 |
| Olmesartan Medoxomil Impurity M | 1378863-72-9 | C49H46N6O6 |
| Olmesartan Medoxomil Impurity N | 1020157-01-0 | C48H44N6O6 |
| Olmesartan Medoxomil Impurity O | 172875-59-1 | C45H44N6O3 |
| Olmesartan Medoxomil Impurity R | 144690-53-9 | C45H42N6O4 |
| Olmesartan Medoxomil Impurity RNH-6363 | 172875-98-8 | C24H24N6O2 |
| Olmesartan Medoxomil Impurity S | 154709-18-9 | C33H26N4O |
| Olmesartan Medoxomil Impurity T | 761404-85-7 | C43H40N6O3 |
| Olmesartan Medoxomil Impurity U | 144689-23-6 | C26H30N6O3 |
| Olmesartan Medoxomil Impurity V | 157356-74-6 | C45H42N6O2 |
| Olmesartan Medoxomil Methyl Ether | 896419-17-3 | C30H32N6O6 |
| Olmesartan medoxomil Related Compound A | 849206-43-5 | C24H24N6O2 |
| Olodaterol Impurity 4 | 30992-63-3 | C15H14O3 |
| Olodaterol Impurity 5 | 861841-94-3 | C15H13NO5 |
| Olodaterol Impurity 6 | 861841-90-9 | C15H15NO3 |
| Olodaterol Impurity 7 | 869478-09-1 | C17H15NO4 |
| Olodaterol Impurity 8 | 869478-10-4 | C17H14ClNO4 |
| Olodaterol Impurity 9 | 869478-11-5 | C17H16ClNO4 |
| Olodaterol Impurity 10 | 869478-12-6 | C17H15NO4 |
| Olodaterol Impurity 11 | 56490-94-9 | C11H17NO |
| Olodaterol Impurity 12 | 869478-13-7 | C28H32N2O5 |
| Olodaterol Impurity 13 | 35144-39-9 | C11H16O2 |
| Olodaterol Impurity 14 | 926319-54-2 | C13H19NO2 |
| Olodaterol Impurity 17 | 868049-50-7 | C21H26N2O5 |
| Olodaterol Impurity 18 | 2727170-18-3 | C22H26N2O5 |
| Olodaterol Impurity 20 | 926319-53-1 | C17H14BrNO4 |
| Olopatadine | 113806-05-6 | C21H23NO3 |
| Olopatadine (Z)-Ethyl Ester | 113806-03-4 | C23H27NO3 |
| Olopatadine Acetaldehyde Impurity | 1376615-97-2 | C21H23NO2 |
| Olopatadine Ethyl Ester | 113806-03-4 | C23H27NO3 |
| Olopatadine Impurity 1 | 66801-40-9 | C15H10O4 |
| Olopatadine Impurity 2 | 56427-76-0 | C19H18O4 |
| Olopatadine Impurity 3 | 2519517-77-0 | C20H21NO2 |
| Olopatadine Impurity 4 | 55690-15-8 | C18H18O5 |
| Olopatadine Impurity 5 | 55690-18-1 | C17H16O5 |
| Olopatadine Impurity 6 | 55453-89-9 | C16H14O5 |
| Olopatadine Impurity 7 | 1253179-74-6 | C25H31NO3 |
| Olopatadine Impurity 8 (HBr) | 27710-82-3 | C23H28Br2NP |
| Olopatadine Impurity 9 | 680579-52-6 | C39H36Br2P2 |
| Olopatadine Impurity 10 (HBr) | 4174-83-8 | C22H26Br2NP |
| Olopatadine Impurity 11 | 113805-71-3 | C21H23NO3 |
| Olopatadine Impurity 11 (HBr) | 4174-84-9 | C21H24Br2NP |
| Olopatadine Impurity 12 | 113835-76-0 | C21H25NO2 |
| Olopatadine Impurity 13 | 55453-90-2 | C18H16O4 |
| Olopatadine Impurity 14 | 51860-45-8 | C21H22BrOP |
| Olopatadine Impurity 15 | 70240-41-4 | C24H28BrP |
| Olopatadine Impurity 16 | 728-97-2 | C15H14O3 |
| Olopatadine Impurity 18 | 113835-94-2 | C19H19NO3 |
| Olopatadine Impurity 19 | 18355-96-9 | C23H27BrNP |
| Olopatadine Impurity 21 | 3607-17-8 | C21H21Br2P |
| Olopatadine Impurity 22 | 962-95-8 | C17H22NOP |
| Olopatadine Impurity 23 | 55689-64-0 | C17H14O4 |
| Olopatadine Impurity 29 | 1253107-27-5 | C23H27NO3 |
| Olopatadine Impurity 30 | 949141-21-3 | C21H25NO4 |
| Olopatadine Impurity 31 | 113835-92-0 | C20H21NO3 |
| Olopatadine Impurity 32 | 1346606-15-2 | C23H24F3NO5 |
| Olopatadine Impurity 34 | 875050-50-3 | C17H15IO4 |
| Olopatadine Impurity 35 | 1331668-21-3 | C21H24ClNO4 |
| Olopatadine Impurity 36 | 949141-22-4 | C21H24ClNO3 |
| Olopatadine Impurity 37 | 113806-02-3 | C22H25NO3 |
| Olopatadine Impurity 39 | 1628639-06-4 | C21H23NO4 |
| Olopatadine Impurity 40 | 113806-01-2 | C22H25NO3 |
| Olopatadine Impurity 49 | 111088-69-8 | C22H24BrOP |
| Olopatadine Isopropyl Ester | 1206456-44-1 | C24H29NO3 |
| Olopatadine Methyl Ester | 113806-01-2 | C22H25NO3 |
| Olopatadine N-Oxide Hydrochloride | Not available | C21H24ClNO4 |
| Olopatadine related compound A | 1331822-32-2 | C21H23NO4 |
| Olopatadine related compound B | 173174-07-7 | C21H23NO4 |
| Olopatadine(E)-Isomer | 113806-06-7 | C21H23NO3 |
| Olopatadine(E)-Isopropyl ester | 1206456-44-1 | C24H29NO3 |
| Olprinone Impurity 1 | 141354-29-2 | C12H10N4O |
| Olprinone Impurity 3 | 1402751-73-8 | C14H11N3O3 |
| Olprinone Impurity 4 | 116355-08-9 | C10H10N2O |
| Olprinone Impurity 7 | 2236020-10-1 | C9H10N2 |
| Olprinone Impurity 10 | 1204742-76-6 | C13H17BN2O2 |
| Olprinone Impurity 13 | 885275-62-7 | C7H6N2O |
| Olprinone Impurity 24 | 116355-12-5 | C11H12N2O |
| Olprinone Impurity 25 | 6188-23-4 | C7H5BrN2 |
| Olprinone Impurity 26 | 116355-20-5 | C11H12N2 |
| Olprinone Impurity B | 106730-62-5 | C14H12N4O2 |
| Olsalazine sodium for performance test | 6054-98-4 | C14H8N2Na2O6 |
| Olsellidine impurity 1 | 35134-07-7 | C6H6O2S |
| Olsellidine impurity 3 | 2109414-99-3 | C12H17NO3S |
| Olsellidine impurity 5 | 855398-57-1 | C9H14O2 |
| Olsellidine impurity 6 | 1467617-14-6 | C13H17NO3 |
| Olsellidine impurity 7 | 21970-13-8 | C5H4BrMgN |
| Olsellidine impurity 8 | 1401031-36-4 | C18H22N2O3 |
| Olsellidine impurity 9 | 1401031-38-6 | C16H20N2O |
| Olsellidine impurity 10 | 1401026-79-6 | C16H24N2O |
