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| 5-Methyl Uridine-d4 CAS No. 82845-85-0 C10H10N2O6D4 M.W. 262.26 U-011
 | | | Uridine C9H12N2O6 M.W. 244.21 U-012
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| Ursodiol-d4 C24H36O4D4 M.W. 396.61 U-021
 | | | Glycoursodiol-d4 C26H39NO5D4 M.W. 453.66 U-022
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| Tauroursodiol-d4 C26H41NO6SD4 M.W. 503.74 U-023
 | | | Tauroursodiol CAS No. 128-13-2 C24H40O4 M.W. 392.58 U-025
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| Glycoursodeoxycholic Acid C26H43NO5 M.W. 449.64 U-026
 | | | Udenafil CAS No. 268203-93-6 C25H36N6O4S M.W. 516.67 U-031
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| Ulifloxacin CAS No. 112984-60-8 C16H18FN3O3S M.W. 351.40 U-041
 | | | Ulifloxacin-d8 CAS No. 112984-60-8 (non-d) C16H10FN3O3SD8 M.W. 359.46 U-042
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| Ulifloxacin Acyl Glucuronide C22H26FN3O9S M.W. 527.53 U-043
 | | | Uracil CAS No. 66-22-8 C4H4N2O2 M.W. 112.09 U-051
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| Uracil-13C-15N2 CAS No. 66-22-8 (non-labelled) C4H4N2O2 M.W. 115.06 U-052
 | | | Hydroxy Urea CAS No. 127-07-1 CH4N2O2 M.W. 76.06 U-061
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| Hydroxy Urea-15N2-13C CAS No. 127-07-1 (un-labelled) CH4N2O2 M.W. 79.03 U-062
 | | | Acetohydroxamic Acid CAS No. 546-88-3 C2H5NO2 M.W. 75.05 U-063
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| Urapidil CAS No. 34661-75-1 C20H29N5O3 M.W. 387.49 U-071
 | | | Urapidil-d6 C20H23N5O3D6 M.W. 393.52 U-072
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| Urapidil-d8 C20H21N5O3D8 M.W. 395.53 U-073
 | | | Urapidil Impurity 1 CAS No. 34654-81-4 C9H14ClN3O2 M.W. 231.68 U-074
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| Urapidil Impurity 2 CAS No. 34661-79-5 C20H29N5O3 M.W. 387.49 U-075
 | | | Urapidil Impurity 3 CAS No. 34661-73-9 C19H26ClN5O2 M.W. 391.90 U-076
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| O-Desmethyl Urapidil CAS No. 91453-03-1 C19H27N5O3 M.W. 373.46 U-077
 | | | Urapidil Impurity CAS No. N/A C14H23N3O M.W. 249.36 U-078
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| p-Hydroxy Urapidil CAS No. 88733-12-4 C20H29N5O4 M.W. 403.49 U-079
 | | | N-Desmethyl Ulipristal C27H33NO3 M.W. 419.57 U-081
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| N-Desmethyl Ulipristal Acetate CAS No. 159681-66-0 C29H35NO4 M.W. 461.61 U-082
 | | | N,N-Didesmethyl Ulipristal CAS No. 244206-52-8 C26H31NO3 M.W. 405.54 U-083
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| Ulipristal Acetate CAS No. 126784-99-4 C30H37NO4 M.W. 475.63 U-084
 | | | Urazol (1,2,4-triazolidine-3,5-dione) CAS No. 3232-84-6 C2H3N3O2 M.W. 101.07 U-091
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| Pyridyl Urazol [4-(3-Pyridyl)-1,2,4-triazolidine-3,5-dione] CAS No. 1076199-39-7 C7H6N4O2 M.W. 178.15 U-092
![Pyridyl Urazol [4-(3-Pyridyl)-1,2,4-triazolidine-3,5-dione]](product_images/U-092.jpg) | |