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| Dapsone-d8 C12H4N2O2SD8 M.W. 256.35 D-011
 | | | Dapsone hydroxylamine CAS No. 32695-27-5 C12H12N2O3S M.W. 264.30 D-012
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| 2-Hydroxy desipramine HCI CAS No. 59259-75-5 C18H22N2O.HCl M.W. 318.85 D-021
 | | | 2-Hydroxy desipramine-d6 HCl CAS No. 59259-75-5(non-d) C18H16D6N2O.HCl M.W. 324.89 D-022
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| 2-Hydroxy desipramine glucuronide CAS No. 25521-31-7 C24H30N2O7 M.W. 456.54 D-023
 | | | 2-Hydroxy desipramine-d6 glucuronide CAS No. 25521-31-7(non-d) C24H24D6N2O7 M.W. 462.58 D-024
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| Desipramine-d4 HCl CAS No. 61361-34-0 C18H18N2D4.HCl M.W. 270.41 36.46 D-025
 | | | Dextromethorphan-d3 HBr CAS No. 127-71-3 C18H22D3NO.HBr M.W. 355.33 D-031
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| Dextrophan-d3 tartrate C17H20NOD3.C4H6O6 M.W. 260.40 150.09 D-041
 | | | Dextrophan tartrate C17H23NO.C4H6O6 M.W. 257.38 150.09 D-042
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| Diazepam-d5 CAS No. 65854-76-4 C16H8D5ClN2O M.W. 289.71 D-051
 | | | Diclofenac-d4 CAS No. 15307-86-5(non-d) C14H7D4Cl2NO2 M.W. 300.18 D-061
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| 4' -Hydroxy diclofenac CAS No. 64118-84-9 C14H11Cl2NO3 M.W. 312.15 D-062
 | | | 4' -Hydroxy diclofenac-d4 CAS No. 64118-84-9(non-d) C14H7D4Cl2NO3 M.W. 316.18 D-063
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| Diclofenac-acyl-β-D-glucuronide C20H19Cl2NO8 M.W. 472.28 D-064
 | | | Diltiazem HCl CAS No. 33286-22-5 C22H26N2O4S.HCl M.W. 450.99 D-071
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| Diltiazem-d3 HCl C22H23N2O4SD3.HCl M.W. 417.55 36.46 D-072
 | | | N-Desmethyl diltiazem HCl CAS No. 86408-45-9 C21H24N2O4S.HCl M.W. 436.96 D-073
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| Desacetyl diltiazem HCl CAS No. 75472-91-2 C20H24N2O3S.HCl M.W. 408.95 D-074
 | | | Diltiazem-d4 HCl C22H22N2O4SD4.HCl M.W. 418.55 36.46 D-075
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| Desacetyl Diltiazem-d3 HCl C20H21N2O3SD3.HCl M.W. 375.51 36.46 D-076
 | | | Desacetyl Diltiazem-d4 HCl C20H20N2O3SD4.HCl M.W. 376.51 36.46 D-077
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| Desmethyl Diltiazem-d4 HCl C21H20N2O4SD4.HCl M.W. 404.52 36.46 D-078
 | | | N-Desmethyl Desacetyl Diltiazem HCl C19H22N2O3S.HCl M.W. 358.46 36.46 D-079
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| Diphenyldramine-d3 C17H18D3NO M.W. 258.34 D-081
 | | | Dipenyldramine-d4 HCl C17H17NOD4 . HCl M.W. 259.39 36.46 D-082
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| Diquat-d4 dibromide CAS No. 85-00-7(non-d) C12H8D4N2.2Br M.W. 348.07 D-091
 | | | Duloxetine-d3 HCl CAS No. 116539-59-4(non-d) C18H16NOSD3.HCl M.W. 300.44 36.46 D-111
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| 4-Hydroxy duloxetine glucuronide C24H27NO8S M.W. 489.55 D-112
 | | | 5-Hydroxy-6-methoxy duloxetine sulfate C19H21NO6S2 M.W. 423.51 D-113
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| Duloxetine HCl C18H19NOS.HCl M.W. 297.42 36.46 D-114
 | | | Duloxetine Impurity HBr CAS No. 949096-01-9 C18H19NOS.HBr M.W. 297.42 80.91 D-115
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| Drospirenone CAS No. 67392-87-4 C24H30O3 M.W. 366.49 D-121
 | | | Drospirenone acid sodium salt C24H31O4.Na M.W. 383.51 22.99 D-122
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| Drospirenone-d4 C24H26O3D4 M.W. 370.53 D-123
 | | | 4,5-Dihydrodrospirenone-3-sulfate C24H34O5S M.W. 434.60 D-124
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| 4,5-Dihydrodrospirenone C24H34O3 M.W. 370.54 D-125
 | | | Donepezil-d4 HCl CAS No. 120014-06-4 (non-d) C24H25NO3D4.HCl M.W. 383.53 36.46 D-131
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| Donepezil CAS No. 120014-06-4 C24H29NO3 M.W. 379.50 D-132
 | | | Donepezil-d5 C24H24NO3D5 M.W. 384.53 D-133
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| 5-O-Desmethyl Donepezil CAS No. 120013-57-2 C23H27NO3 M.W. 365.48 D-134
 | | | 5-O-Desmethyl Donepezil-d5 CAS No. 120013-57-2(non-d) C23H22NO3D5 M.W. 370.56 D-135
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| 6-O-Desmethyl Donepezil CAS No. 120013-56-1 C23H27NO3 M.W. 365.48 D-136
 | | | 6-O-Desmethyl Donepezil-d5 CAS No. 120013-56-1(non-d) C23H22NO3D5 M.W. 370.56 D-137
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| N-Desbenzyl Donepezil HCl C17H23NO3.HCl M.W. 289.38 36.46 D-138
 | | | 5,6-Dimethoxy-1-Indanone (Donepezil Impurity) C11H12O3 M.W. 192.22 D-139
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| Doxazosin-d8 HCl CAS No. 74191-85-8 (non-d) C23H17N5O5D8.HCl M.W. 459.53 36.46 D-141
 | | | R-Doxazosin CAS No. 70918-17-1 C23H25N5O5 M.W. 451.49 D-142
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| S-Doxazosin CAS No. 104874-86-4 C23H25N5O5 M.W. 451.49 D-143
 | | | Doxazosin-d8 C23H17N5O5D8 M.W. 459.53 D-144
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| Doxepin-d3 HCl CAS No. 347840-07-7 (non-d) C19H18NOD3.HCl M.W. 282.40 36.46 D-151
 | | | 3-Ketodesogestrel (Etonogestrel) C22H28O2 M.W. 324.47 D-161
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| 3-Keto-desogestrel-D2-13C2 C22H26D2O2 M.W. 328.46 D-162
 | | | 3-Hydroxy-desestrel C22H30O2 M.W. 326.48 D-163
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| 3-Keto-desogestrel-d6 (Etonogestrel-d6) C22H22O2D6 M.W. 330.50 D-164
 | | | 3-Ketodesogestrel Sulfate (Etonogestrel sulfate) C22H28O5S M.W. 404.53 D-165
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| 3-Ketodesogestrel-17-O-Glucuronide C28H36O8 M.W. 500.59 D-166
 | | | Desogestrel C22H30O M.W. 310.48 D-167
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| Darifenacin CAS No. 133099-04-4 C28H30N2O2 M.W. 426.55 D-171
 | | | Darifenacin-d4 CAS No. 133099-04-4 (non-d) C28H26N2O2D4 M.W. 430.59 D-172
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| Darifenacin-d4 HBr CAS No. C28H26N2O2D4.HBr 430.59 80.91 M.W. D-173
 | | | Doxycycline-13C-d3 CAS No. 17086-28-1 (non-d) C22H21N2O8D3 M.W. 448.45 D-181
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| Doxycycline Monohydrate C22H24N2O8.H2O M.W. 444.45 18.02 D-182
 | | | Docetaxel CAS No. 114977-28-5 C43H53NO14 M.W. 807.90 D-191
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| Docetaxel-d9 CAS No. 114977-28-5 (non-d) C43H44NO14D9 M.W. 816.95 D-192
 | | | Docetaxel Impurity C (7-Epi-Docetaxel) C43H53NO14 M.W. 807.90 D-193
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| Docetaxel Impurity D (7-Epi-10-Oxo-Docetaxel) C43H51NO14 M.W. 805.88 D-194
 | | | Dapoxetine HCl CAS No. 119356-77-3 C21H23NO.HCl M.W. 305.42 36.46 D-201
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| N-Desmethyl Dapoxetine C20H21NO M.W. 291.40 D-202
 | | | N-Didesmethyl Dapoxetine C19H19NO M.W. 277.37 D-203
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| Dapoxetine-d7 CAS No. 119356-77-3 (non-d) C21H16NOD7 M.W. 312.47 D-204
 | | | DAIDZEIN DAIDZEIN M.W. 258.27 D-211
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| Didanosine-d2 C10H12N4O3D2 M.W. 240.26 D-221
 | | | Diflufenican-d3 C19H8F5N2O2D3 M.W. 397.32 D-231
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| Dipyridamole CAS No. 58-32-2 C24H40N8O4 M.W. 504.64 D-241
 | | | Dipyridamole-d20 CAS No. 58-32-2 (non-d) C24H20N8O4D20 M.W. 524.76 D-242
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| Dipyridamole-d16 C24H24N8O4D16 M.W. 520.73 D-243
 | | | Deferasirox CAS No. 201530-41-8 C21H15N3O4 M.W. 373.37 D-251
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| Deferasirox-d4 CAS No. 201530-41-8 (non-d) C21H11N3O4D4 M.W. 377.40 D-252
 | | | Deferasirox iron complex C42H26FeN6O8 M.W. 798.56 D-253
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| Docosahexaenoic acid (DHA) CAS No. 6217-54-5 C22H32O2 M.W. 328.50 D-261
 | | | Docosahexaenoic acid (DHA)-d5 CAS No. 6217-54-5 (non-d) C22H27O2D5 M.W. 333.53 D-262
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| Docosahexaenoic acid ethyl ester-d5 C24H31O2D5 M.W. 361.58 D-263
 | | | Dantrolene-d4 C14H6N4O5D4 M.W. 318.28 D-271
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| 5-Hydroxy Dantrolene-d4 C14H6N4O6D4 M.W. 334.28 D-272
 | | | Diazald CAS No. 80-11-5 C8H10N2O3S M.W. 214.24 D-281
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| Dexanabinol CAS No. 112924-45-5 C25H38O3 M.W. 386.58 D-291
 | | | Dasatinib CAS No. 302962-49-8 C22H26ClN7O2S M.W. 488.02 D-301
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| Dasatinib-d8 CAS No. 302962-49-8 (non-d) C22H18ClN7O2SD8 M.W. 496.06 D-302
 | | | Dasatinib N-Oxide C22H26ClN7O3S M.W. 504.01 D-303
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| Dasatinib Glucuronide C28H34ClN7O8S M.W. 664.14 D-304
 | | | Deflazacort C25H31NO6 M.W. 441.53 D-311
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| 21-Hydroxy Deflazacort (21-Desacetyl Deflazacort) C23H29NO5 M.W. 399.49 D-312
 | | | Levodopa Impurity D (3,4-Dihydroxy-D-Phenylalanine) C9H11NO4 M.W. 197.19 D-321
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| 3-O-methyl dopa sulfate C9H13NO5S M.W. 247.27 D-3210
 | | | Dopamine HCl CAS No. 62-31-7 C8H11NO2.HCl M.W. 153.18 36.46 D-3211
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| 4-O-Methyldopa C10H13NO4 M.W. 211.22 D-3212
 | | | 4-O-Methyldopa-d3 C10H10NO4D3 M.W. 214.24 D-3213
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| 3-O-Methyldopa CAS No. 7636-26-2 C10H13NO4 M.W. 211.22 D-322
 | | | Levodopa-d3 CAS No. 53587-29-4 C9H8NO4D3 M.W. 200.21 D-323
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| Levodopa-d3 CAS No. 59-92-7 (non-d) C9H8NO4D3 M.W. 200.21 D-324
 | | | Carbidopa-d3 CAS No. 28860-95-9 (non-d) C10H11N2O4D3 M.W. 229.25 D-325
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| Levodopa sulfate C9H11NO7S M.W. 277.25 D-326
 | | | 3-O-methyl dopa glucuronide C16H25NO M.W. 359.38 D-327
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| 3-O-methyldopa C10H13NO4 M.W. 211.22 D-328
 | | | 3-O-methyldopa-d3 C10H10NO4D3 M.W. 214.24 D-329
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| Disulfiram CAS No. 97-77-8 C10H20N2S4 M.W. 296.54 D-331
 | | | Disulfiram-d20 CAS No. 97-77-8 (non-d) C10N2S4D20 M.W. 316.65 D-332
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| S-Methyl N, N-Diethyldithiocarbamate CAS No. 686-07-7 C6H13NS2 M.W. 163.31 D-333
 | | | S-Methyl N, N-Diethyldithiocarbamate-d10 CAS No. 686-07-7 (non-d) C6H3NS2D10 M.W. 173.42 D-334
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| Doxorubicin CAS No. 23214-92-8 C27H29NO11 M.W. 543.53 D-341
 | | | Doxorubicin-13C-d3 CAS No. 23214-92-8 (non-d) C27H26NO11D3 M.W. 547.56 D-342
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| Doxorubicinol (mixture of diasteromers) CAS No. 63950-05-0 C27H31NO11 M.W. 545.55 D-343
 | | | Doxorubicinol-13C-d3 (mixture of diasteromers) CAS No. 63950-05-0 (non-d) C27H28NO11D3 M.W. 549.58 D-344
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| Epi-doxorubicin CAS No. 56420-45-2 C27H31NO11 M.W. 545.55 D-345
 | | | Dutasteride C27H30F6N2O2 M.W. 528.54 D-351
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| Dexamethasone-d4 CAS No. 358731-91-6 (non-d) C22H25FO5D4 M.W. 396.50 D-361
 | | | 6-Hydroxy Dexamethasone C22H29FO6 M.W. 408.47 D-362
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| Darunavir CAS No. 206361-99-1 C27H37N3O7S M.W. 547.68 D-371
 | | | Darunavir-d9 CAS No. 206361-99-1 (non-d) C27H28N3O7SD9 M.W. 556.73 D-372
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| Doxylamine-d5 Maleate C18H19N2OD5.C4H6O4 M.W. 289.43 118.09 D-381
 | | | Doxylamine Pyridine N-oxide C18H24N2O2 M.W. 300.40 D-382
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| Doxylamine Aliphatic N-Oxide HCl C17H22N2O2.HCl M.W. 286.38 36.46 D-383
 | | | Doxylamine Pyridine N-Oxide HCl C17H22N2O2.HCl M.W. 286.38 36.46 D-384
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| Doramectin C50H74O14 M.W. 899.14 D-391
 | | | Dexpanthenol (Pantothenyl Alcohol) C9H19NO4 M.W. 205.26 D-401
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| Desonide C24H32O6 M.W. 416.52 D-411
 | | | Dienogest C20H25NO2 M.W. 311.43 D-421
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| Dienogest-d5 C20H20NO2D5 M.W. 316.46 D-422
 | | | Diazoxide C8H7ClN2O2S M.W. 230.67 D-431
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| Diazoxide-d3 C8H4ClN2O2SD3 M.W. 233.69 D-432
 | | | Dropropizine C13H20N2O2 M.W. 236.32 D-441
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| 6-Iodo Diosmin C28H31IO15 M.W. 734.45 D-451
 | |