
Purines and Pyrimidine Derivatives
Purines have a bicyclic structure, consisting of a six-membered ring fused to a five-membered ring, both containing nitrogen atoms in key positions. Purine derivatives, such as adenine and guanine, are essential for the formation of DNA and RNA. These compounds have therapeutic applications in cancer and viral disease treatments by inhibiting cell replication. Pyrimidines, on the other hand, have a monocyclic six-membered structure with two nitrogen atoms. Their derivatives, such as cytosine, thymine, and uracil, are also essential components of DNA and RNA and are used in chemotherapy and antiviral treatments.
At CymitQuimica, we offer purine and pyrimidine derivatives for research in molecular biology, genomics, and the development of innovative therapies.
Found 8901 products of "Purines and Pyrimidine Derivatives"
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Uracil-13C-15N2 (Lamivudine EP Impurity F-13C-15N2, Fluorouracil EP Impurity C-13C-15N2)
CAS:Formula:C313CH415N2O2Color and Shape:White To Off-White SolidMolecular weight:115.07Prucalopride Impurity 1
CAS:Formula:C18H24ClN3O3Color and Shape:Off-White SolidMolecular weight:365.86Pyridoxine Impurity 1
Formula:C16H20N2O5Color and Shape:White To Off-White SolidMolecular weight:320.35Tenofovir Disoproxil USP Related Compound A ((S)-Tenofovir Disoproxil Fumarate)
CAS:Formula:C19H30N5O10P·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:519.45 116.07Theophylline Impurity 19 (Mixture of Z and E Isomers)
CAS:Formula:C8H12O4Color and Shape:Colorless LiquidMolecular weight:172.18Thiamine EP Impurity A Sulfate
CAS:Formula:C12H16N4O4S2·H2SO4Color and Shape:Off-White SolidMolecular weight:344.40 98.07Febuxostat USP Related Compound C
CAS:Formula:C14H12N2O3SColor and Shape:Off-White To Pale Yellow SolidMolecular weight:288.32Ondansetron-13C-d3
CAS:Formula:C1713CH16D3N3OColor and Shape:White To Off-White SolidMolecular weight:297.38Memantine-d3 HCl
CAS:Formula:C12H18D3N·HClColor and Shape:White To Off-White SolidMolecular weight:182.33 36.46Ondansetron EP Impurity F
CAS:Formula:C4H6N2Color and Shape:White To Off-White SolidMolecular weight:82.11Clopidogrel EP Impurity E (R-Isomer)
CAS:Formula:C15H15ClN2OSColor and Shape:White To Off-White SolidMolecular weight:306.81Theophylline-d6 (Dimenhydrinate EP Impurity A-d6, Diprophylline EP Impurity B-d6)
CAS:Formula:C7H2D6N4O2Color and Shape:White To Off-White SolidMolecular weight:186.20Naratriptan Impurity 12 Iodide
CAS:Formula:C20H27N4O4S2·IColor and Shape:Pale Yellow SolidMolecular weight:451.58 126.91Caffeine-13C3 (Pentoxifylline EP Impurity F-13C3, Theophylline EP Impurity A-13C3, Theophylline-Ethylenediamine EP Impurity A-13C3)
CAS:Formula:C513C3H10N4O2Color and Shape:White To Off-White SolidMolecular weight:197.16Prucalopride Impurity 29
Formula:C17H24ClN3O2Color and Shape:White To Off-White SolidMolecular weight:337.85Prucalopride Impurity 25
CAS:Formula:C14H18ClN3O2Color and Shape:White To Off-White SolidMolecular weight:295.77Memantine EP Impurity B HCl (Memantine USP Related Compound H)
CAS:Formula:C13H23N·HClColor and Shape:White To Off-White SolidMolecular weight:193.33 36.46Clopidogrel EP Impurity B HCl (Clopidogrel USP Related Compound B (S-Isomer))
CAS:Formula:C16H16ClNO2S·HClColor and Shape:White To Off-White SolidMolecular weight:321.82 36.46Pyridoxine EP Impurity B HCl
CAS:Formula:C8H11NO2·HClColor and Shape:White To Off-White SolidMolecular weight:153.18 36.468-Hydroxy Ondansetron
CAS:Formula:C18H19N3O2Color and Shape:White To Off-White SolidMolecular weight:309.37Theophylline-Ethylenediamine EP Impurity G-d6 (Caffeine EP Impurity D-d6, Theobromine-d6)
CAS:Formula:C7H2D6N4O2Molecular weight:186.20Methotrexate EP Impurity I Sodium Salt (Methotrexate-1-Monomethyl Ester Sodium Salt)
CAS:Formula:C21H23N8O5·NaMolecular weight:467.47 22.996-Mercaptopurine-13C-15N2 (Azathioprine EP Impurity B-13C-15N2)
CAS:Formula:C413CH4N215N2SMolecular weight:155.15Methotrexate EP Impurity K (Folinic Acid EP Impurity A)
CAS:Formula:C12H14N2O5Color and Shape:Light Brown SolidMolecular weight:266.25Mono-POC Methyl Tenofovir Fumarate (Mixture of Diastereomers)
CAS:Formula:C15H24N5O7P·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:417.36 116.07Sapropterin Impurity 1 Trifluoroacetate (Mixture of Isomers)
Formula:C9H14N4O4·C2HF3O2Molecular weight:242.24 114.02Febuxostat Impurity 34
CAS:Formula:C15H17NO3SColor and Shape:White To Off-White SolidMolecular weight:291.37Memantine Lactose Adduct
CAS:Formula:C24H41NO10Color and Shape:Pale Brown SolidMolecular weight:503.59Pyridoxine Impurity 7
Formula:C16H20N2O5Color and Shape:White To Off-White SolidMolecular weight:320.35rac-Tenofovir-d7
CAS:Formula:C9H7D7N5O4PColor and Shape:White To Off-White SolidMolecular weight:294.26trans-Dihydro Tetrabenazine
CAS:Formula:C19H29NO3Color and Shape:White To Off-White SolidMolecular weight:319.458-Benzyl Theophylline
CAS:Formula:C14H14N4O2Color and Shape:White To Off-White SolidMolecular weight:270.29Tenofovir Impurity 30
CAS:Formula:C15H18N5O4PColor and Shape:White To Off-White SolidMolecular weight:363.313-Desmethyl Istradefylline
CAS:Formula:C19H22N4O4Color and Shape:Pale Yellow SolidMolecular weight:370.41Allopurinol EP Impurity D (Allopurinol USP Related Compound D)
CAS:Formula:C6H9N3O2Color and Shape:Pale Brown SolidMolecular weight:155.161-Methylnicotinamide Iodide
CAS:Formula:C7H9N2O·IColor and Shape:Pale Yellow SolidMolecular weight:137.16 126.91Methotrexate EP Impurity L
CAS:Formula:C13H16N2O5Color and Shape:White To Off-White SolidMolecular weight:280.28Tenofovir Related Compound 10
CAS:Formula:C8H11N5OColor and Shape:Off-White SolidMolecular weight:193.21Tenofovir Impurity 37
CAS:Formula:C10H15O6PSColor and Shape:Pale Yellow LiquidMolecular weight:294.26(S)-Clopidogrel N-Oxide
CAS:Formula:C16H16ClNO3SColor and Shape:Pale Yellow Semi-SolidMolecular weight:337.82Istradefylline Dimer Impurity 1 (Mixture of Diastereomers)
Formula:C40H50N8O8Color and Shape:White To Off-White SolidMolecular weight:770.89Sumatriptan EP Impurity C
CAS:Formula:C15H23N3O3SColor and Shape:White To Off-White SolidMolecular weight:325.43Tetrabenazine Impurity 42 (2S, 3S, 11bR)
CAS:Formula:C19H29NO3Color and Shape:Off-White SolidMolecular weight:319.45Almotriptan EP Impurity A Malate (Almotriptan USP Related Compound C Malate)
CAS:Formula:C16H23N3O2S·C4H6O5Color and Shape:Off-White SolidMolecular weight:321.44 134.09Nicotinic Acid EP Impurity F (5-Nitronicotinic Acid)
CAS:Formula:C6H4N2O4Color and Shape:Yellow SolidMolecular weight:168.114-Amino-3-Hydroxy-Pyridine
CAS:Formula:C5H6N2OColor and Shape:White To Off-White SolidMolecular weight:110.12Oseltamivir-Fructose Adduct 1 (Amadori Rearrangement Product)
Formula:C22H38N2O9Color and Shape:White To Off-White SolidMolecular weight:474.55rac-Liothyronine-15N-13C9
CAS:Formula:C613C9H12I315NO4Color and Shape:White To Off-White SolidMolecular weight:660.90Thiamine Triphosphate Trioctylamine
CAS:Formula:C12H19N4O10P3S·3C8H19NMolecular weight:504.28 3*129.25Pemetrexed EP Impurity D Monosodium Salt
CAS:Formula:C25H27N6O9·NaColor and Shape:Blue SolidMolecular weight:555.52 22.99Fampridine-d4 (Dalfampridine-d4, 4-Aminopyridine-d4)
CAS:Formula:C5H2D4N2Color and Shape:Off-White SolidMolecular weight:98.14Istradefylline Dimer Impurity 2
CAS:Formula:C40H48N8O8Color and Shape:White To Off-White SolidMolecular weight:768.87Zolmitriptan Impurity 8 (Mixture of Diastereomers)
Formula:C16H21N3O4Color and Shape:Pale Brown SolidMolecular weight:319.36Tetrabenazine Impurity 37
CAS:Formula:C19H27NO3Color and Shape:White To Off-White SolidMolecular weight:317.43Febuxostat Impurity 32 HCl
CAS:Formula:C12H11NO3S·HClColor and Shape:Yellow SolidMolecular weight:249.29 36.46Caffeine EP Impurity C (Caffeine USP Related Compound C, Isocaffeine)
CAS:Formula:C8H10N4O2Color and Shape:White To Off-White SolidMolecular weight:194.19Topiroxostat Impurity 2
Formula:C7H8N4O2Color and Shape:White To Off-White SolidMolecular weight:180.17Almotriptan Impurity 6 DiHCl (Almotriptan N-Dimer Impurity DiHCl)
Formula:C30H41N5O2S·2HClColor and Shape:White To Off-White SolidMolecular weight:535.76 2 36.46Oseltamivir EP Impurity E HCl
CAS:Formula:C15H26N2O4·HClColor and Shape:Off-White SolidMolecular weight:298.39 36.46Choline Orotate
CAS:Formula:C5H3N2O4·C5H14NOColor and Shape:Off-White SolidMolecular weight:104.17 155.09Desmethyl Prucalopride
CAS:Formula:C17H24ClN3O3Color and Shape:White To Off-White SolidMolecular weight:353.85Almotriptan EP Impurity F Malate
CAS:Formula:C19H29N3O2S·C4H6O5Color and Shape:Off-White SolidMolecular weight:363.53 134.09Methotrexate EP Impurity I (Methotrexate-1-Monomethyl Ester)
CAS:Formula:C21H24N8O5Color and Shape:Orange SolidMolecular weight:468.47Thiamine Chloride HCl
CAS:Formula:C12H17N4OS·Cl·HClColor and Shape:White To Off-White SolidMolecular weight:265.35 35.45 36.46Thiamine Phosphate Chloride
CAS:Formula:C12H18N4O4PS·ClColor and Shape:White To Off-White SolidMolecular weight:345.34 35.45Iopamidol EP Impurity D
CAS:Formula:C14H15I3N2O7Color and Shape:White To Off-White SolidMolecular weight:703.991,2-Dimethyl Adamantane (Mixture of Diastereomers)
CAS:Formula:C12H20Color and Shape:White To Off-White SolidMolecular weight:164.29Clopidogrel Impurity 33 HCl
CAS:Formula:C15H16ClNO2S·HClColor and Shape:White To Off-White SolidMolecular weight:309.81 36.46Febuxostat Impurity 7
Formula:C16H18N2O4SColor and Shape:White To Off-White SolidMolecular weight:334.39Palonosetron Impurity 3
CAS:Formula:C18H24N2OColor and Shape:White To Off-White SolidMolecular weight:284.40Prucalopride Impurity 7
Formula:C20H29N3O4Color and Shape:White To Off-White SolidMolecular weight:375.47Prucalopride Impurity 35
CAS:Formula:C8H8ClNO3Color and Shape:White To Off-White SolidMolecular weight:201.61Memantine-Glycine Adduct HCl
CAS:Formula:C14H23NO2·HClColor and Shape:White To Off-White SolidMolecular weight:237.34 36.46Tenofovir Impurity 8
CAS:Formula:C21H36N7O6PColor and Shape:White To Off-White SolidMolecular weight:513.54Ondansetron EP Impurity H
CAS:Formula:C17H17N3OColor and Shape:White To Off-White SolidMolecular weight:279.34Clopidogrel Ethyl Ester Sulfate
CAS:Formula:C17H18ClNO2S·H2SO4Color and Shape:White To Off-White SolidMolecular weight:335.85 98.07Tenofovir Impurity 100
CAS:Formula:C9H14N5O4PColor and Shape:White To Off-White SolidMolecular weight:287.22Pralatrexate-13C5-15N
CAS:Formula:C1813C5H23N615NO5Color and Shape:Pale Yellow SolidMolecular weight:483.44rac-Clopidogrel EP Impurity A (Clopidogrel Carboxylic Acid)
CAS:Formula:C15H14ClNO2SColor and Shape:Off-White SolidMolecular weight:307.79Sumatriptan Succinate
CAS:Formula:C14H21N3O2S·C4H6O4Color and Shape:White To Off-White SolidMolecular weight:295.40 118.09Febuxostat Impurity 25
CAS:Formula:C18H21NO5SColor and Shape:White To Off-White SolidMolecular weight:363.43Fampridine Impurity 1 (Dalfampridine Impurity 1)
CAS:Formula:C6H5ClN2OColor and Shape:White To Off-White SolidMolecular weight:156.57Pralatrexate Impurity 15 (Pralatrexate Penta-L-Glutamate)
Formula:C48H58N12O20Molecular weight:1123.06Febuxostat Impurity 33
CAS:Formula:C17H21NO3SColor and Shape:White To Off-White SolidMolecular weight:319.42Istradefylline-13C-d3
CAS:Formula:C1913CH21D3N4O4Color and Shape:Pale Yellow SolidMolecular weight:388.45tri-Benzyl Miglustat Isomer 1 HCl
Formula:C31H39NO4·HClColor and Shape:Off-White SolidMolecular weight:489.66 36.46Clopidogrel EP Impurity F HCl
CAS:Formula:C15H16ClNO2S·HClColor and Shape:White To Off-White SolidMolecular weight:309.81 36.46Febuxostat Acyl Glucuronide
CAS:Formula:C22H24N2O9SColor and Shape:Pale Yellow SolidMolecular weight:492.50Miglustat-d9 HCl
CAS:Formula:C10H12D9NO4·HClColor and Shape:Off-White SolidMolecular weight:228.34 36.46(S)-Frovatriptan Succinate
Formula:C14H17N3O·C4H6O4Color and Shape:White To Off-White SolidMolecular weight:243.31 118.09cis-Dihydro Tetrabenazine-d7
CAS:Formula:C19H22D7NO3Color and Shape:White To Off-White SolidMolecular weight:326.49Thiamine-d4 Chloride HCl
CAS:Formula:C12H13D4N4OS·Cl·HClColor and Shape:White To Off-White SolidMolecular weight:269.38 35.45 36.46Prucalopride Hydroxy Impurity
CAS:Formula:C18H26ClN3O4Color and Shape:White To Off-White SolidMolecular weight:383.88Tenofovir Related Compound 9
CAS:Formula:C8H11N5OColor and Shape:White To Off-White SolidMolecular weight:193.21Febuxostat Impurity 77
CAS:Formula:C15H16BrNO3SColor and Shape:Off-White SolidMolecular weight:370.26Almotriptan Impurity 8
CAS:Formula:C15H13Cl2N3OColor and Shape:White To Off-White SolidMolecular weight:322.19Oseltamivir Impurity 54
CAS:Formula:C14H24N2O4Color and Shape:White To Off-White SolidMolecular weight:284.36Prucalopride Impurity 39
CAS:Formula:C12H12Br2ClNO4Color and Shape:White To Off-White SolidMolecular weight:429.49Tenofovir Impurity 137
CAS:Formula:C11H18N5O4PColor and Shape:White To Off-White SolidMolecular weight:315.27Palonosetron USP Related Compound C ((S,R)-Palonosetron HCl)
CAS:Formula:C19H24N2O·HClColor and Shape:Off-White SolidMolecular weight:296.41 36.46Zolmitriptan EP Impurity F (Zolmitriptan USP Related Compound B)
CAS:Formula:C15H23N3OColor and Shape:Off-White SolidMolecular weight:261.37Prucalopride Impurity 6
CAS:Formula:C18H27N3O3Color and Shape:White To Off-White SolidMolecular weight:333.43Tenofovir Disoproxil USP Related Compound B (9-Propenyladenine)
CAS:Formula:C8H9N5Color and Shape:Off-White SolidMolecular weight:175.20rac-3-Des[2-(dimethylamino)ethyl]-Zolmitriptan 3-Acetic Acid-d3
CAS:Formula:C14H11D3N2O4Color and Shape:White To Off-White SolidMolecular weight:277.29D-Phenylalaninyl-D-Phenylalanine
CAS:Formula:C18H20N2O3Color and Shape:White To Off-White SolidMolecular weight:312.37Pemetrexed-13C5 Disodium Salt
CAS:Formula:C1513C5H19N5O6·2NaColor and Shape:White To Off-White SolidMolecular weight:430.35 2*22.99Pemetrexed EP Impurity D Trisodium Salt
CAS:Formula:C25H25N6O9·3NaColor and Shape:Pale Green SolidMolecular weight:553.51 3*22.99Palonosetron USP Related Compound D ((R,S)-Palonosetron HCl)
CAS:Formula:C19H24N2O·HClColor and Shape:White To Off-White SolidMolecular weight:296.41 36.46Thiamine EP Impurity C Chloride HCl
CAS:Formula:C12H16ClN4S·Cl·HClColor and Shape:White To Off-White SolidMolecular weight:283.80 35.45 36.46Rizatriptan Impurity 5 DiHCl
CAS:Formula:C9H11N5·2HClColor and Shape:Pale Yellow SolidMolecular weight:189.22 2*36.46Diethyl Tenofovir
CAS:Formula:C13H22N5O4PColor and Shape:White To Off-White SolidMolecular weight:343.32Pyridoxal HCl
CAS:Formula:C8H9NO3·HClColor and Shape:White To Off-White SolidMolecular weight:167.16 36.46Tenofovir Alafenamide Fumarate
CAS:Formula:C21H29N6O5P·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:476.48 116.07Phenylpyruvate Calcium Salt (2-Keto-Phenylalanine Calcium Salt)
Formula:C9H7O3·CaColor and Shape:White To Off-White SolidMolecular weight:2*163.15 40.08Trifluridine Impurity 6
CAS:Formula:C10H11F3N2O5Color and Shape:White To Off-White SolidMolecular weight:296.20Memantine HCl
CAS:Formula:C12H21N·HClColor and Shape:White To Off-White SolidMolecular weight:179.31 36.464-Desmethyl Istradefylline
CAS:Formula:C19H22N4O4Color and Shape:Pale Yellow SolidMolecular weight:370.41Telbivudine-d4
CAS:Formula:C10H10D4N2O5Color and Shape:White To Off-White SolidMolecular weight:246.26Oseltamivir EP Impurity G
CAS:Formula:C16H28N2O4Color and Shape:White To Off-White SolidMolecular weight:312.41Eletriptan Impurity 1
Formula:C44H50N4O4S2Color and Shape:White To Off-White SolidMolecular weight:763.03Iopamidol EP Impurity C
CAS:Formula:C16H20I3N3O7Color and Shape:White To Off-White SolidMolecular weight:747.06Almotriptan Hydrazine Precursor HCl
CAS:Formula:C11H17N3O2S·HClColor and Shape:Off-White SolidMolecular weight:255.34 36.46
