
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 8881 products of "Purines and Pyrimidine Derivatives"
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Caffeine EP Impurity E HCl (Caffeidine HCl)
CAS:Formula:C7H12N4O·HClColor and Shape:Off-White SolidMolecular weight:168.20 36.46Desmethyl Tenofovir Disoproxoil (Adefovir Disoproxil)
CAS:Formula:C18H28N5O10PColor and Shape:White To Off-White SolidMolecular weight:505.42Choline Orotate
CAS:Formula:C5H3N2O4·C5H14NOColor and Shape:Off-White SolidMolecular weight:104.17 155.09Doxofylline Impurity 5
CAS:Formula:C11H12N4O4Color and Shape:White To Off-White SolidMolecular weight:264.24Ondansetron EP Impurity B
CAS:Formula:C37H38N6O2Color and Shape:Pale Yellow SolidMolecular weight:598.75Almotriptan EP Impurity F Malate
CAS:Formula:C19H29N3O2S·C4H6O5Color and Shape:Off-White SolidMolecular weight:363.53 134.09Oseltamivir-Glucose Adduct 1
Formula:C22H38N2O9Color and Shape:White To Off-White SolidMolecular weight:474.55Thiamine 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 35.45L-Kynurenine-13C4-15N
CAS:Formula:C613C4H12N15NO3Color and Shape:Pale Yellow SolidMolecular weight:213.18Trifluridine Impurity 10
CAS:Formula:C5H5F3N2O2Color and Shape:White To Off-White SolidMolecular weight:182.10Febuxostat 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:201.61Fampridine Impurity 3
CAS:Formula:C9H12N2O2Color and Shape:White To Off-White SolidMolecular weight:180.21Memantine Lactose Adduct
CAS:Formula:C24H41NO10Color and Shape:Pale Brown SolidMolecular weight:503.59Tenofovir Impurity 8
CAS:Formula:C21H36N7O6PColor and Shape:White To Off-White SolidMolecular weight:513.54Clopidogrel Impurity 24 HCl
CAS:Formula:C7H9NS·HClColor and Shape:Off-White SolidMolecular weight:139.22 36.46Tenofovir 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:363.43Isopropyl Tenofovir Fumarate
CAS:Formula:C12H20N5O4P·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:329.30 116.07Istradefylline-13C-d3
CAS:Formula:C1913CH21D3N4O4Color and Shape:Pale Yellow SolidMolecular weight:388.45Almotriptan Hydrazine Precursor HCl
CAS:Formula:C11H17N3O2S·HClColor and Shape:Off-White SolidMolecular weight:255.34 36.46Naratriptan Impurity 10
CAS:Formula:C20H32N4O4S2Color and Shape:White To Off-White SolidMolecular weight:456.62Febuxostat Acyl Glucuronide
CAS:Formula:C22H24N2O9SColor and Shape:Pale Yellow SolidMolecular weight:492.50Nicotinic Acid EP Impurity D (Isocinchomeronic Acid)
CAS:Formula:C7H5NO4Color and Shape:Pale Yellow SolidMolecular weight:167.12Tegaserod-13C-d3 Maleate
CAS:Formula:C1513CH20D3N5O·C4H4O4Color and Shape:Pale Yellow SolidMolecular weight:305.40 116.07Tenofovir 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:370.26Memantine HCl EP Impurity A (Memantine USP Related Compound G)
CAS:Formula:C11H19N·HClColor and Shape:White To Off-White SolidMolecular weight:165.28 36.46Almotriptan 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:429.49Hydantoic Acid-13C2,15N Ethyl Ester
CAS:Formula:C313C2H10N15NO3Color and Shape:White To Off-White SolidMolecular weight:149.12Prucalopride 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*36.46Rizatriptan EP Impurity B Chloride
CAS:Formula:C28H32N9·ClColor and Shape:White To Off-White SolidMolecular weight:494.63 35.45Nicotinic Acid EP Impurity C (5-Ethyl-2-Methylpyridine)
CAS:Formula:C8H11NColor and Shape:Colorless LiquidMolecular weight:121.18Trifluridine 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:246.26Ondansetron EP Impurity A HCl (Ondansetron USP Related Compound A)
CAS:Formula:C16H20N2O·HClMolecular weight:256.35 36.46Oseltamivir EP Impurity G
CAS:Formula:C16H28N2O4Color and Shape:White To Off-White SolidMolecular weight:312.41Palonosetron USP Related Compound B
CAS:Formula:C19H22N2O2Color and Shape:Off-White SolidMolecular weight:310.40Eletriptan 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:747.06rac-Clopidogrel EP Impurity A-d4 (rac-Clopidogrel-d4 Carboxylic Acid)
CAS:Formula:C15H10D4ClNO2SColor and Shape:White To Off-White SolidMolecular weight:311.82Methotrexate Impurity 2 Trifluoroacetate
CAS:Formula:C21H27N9O3·C2HF3O2Color and Shape:Orange SolidMolecular weight:453.51 114.02Naratriptan Impurity 13
CAS:Formula:C20H32N4O4S2Color and Shape:White To Off-White SolidMolecular weight:456.62Pyridoxine Impurity 10 HCl
CAS:Formula:C8H11NO4·HClColor and Shape:Off-White SolidMolecular weight:185.18 36.46rac-Zolmitriptan Impurity 16 HCl
CAS:Formula:C10H12N2O2·HClColor and Shape:Yellow SolidMolecular weight:192.22 36.46Nicotinic Acid EP Impurity I
CAS:Formula:C5H3N3O4Color and Shape:Pale Green SolidMolecular weight:169.10Thiamine Impurity 8
CAS:Formula:C7H9N3O2Color and Shape:White To Off-White SolidMolecular weight:167.17Naratriptan Impurity 8
CAS:Formula:C16H22N2Color and Shape:White To Off-White SolidMolecular weight:242.37Clopidogrel Metabolite I-d3 Trifluoroacetate (Mixture of Diastereomers)
CAS:Formula:C16H15D3ClNO4S·C2HF3O2Molecular weight:358.86 114.02D-Phenylalaninyl-D-Phenylalanine-d5
CAS:Formula:C18H15D5N2O3Color and Shape:White To Off-White SolidMolecular weight:317.40Uracil (Lamivudine EP Impurity F, Fluorouracil EP Impurity C)
CAS:Formula:C4H4N2O2Color and Shape:White To Off-White SolidMolecular weight:112.09Tetrabenazine Impurity 39 (2S, 3S, 11bS)
CAS:Formula:C19H29NO3Color and Shape:White To Off-White SolidMolecular weight:319.45Oseltamivir Phosphate
CAS:Formula:C16H28N2O4·H3O4PColor and Shape:White To Off-White SolidMolecular weight:312.41 97.99Oseltamivir Impurity 65
CAS:Formula:C17H28N2O5Color and Shape:White To Off-White SolidMolecular weight:340.42Iopamidol EP Impurity B (Desmethyl Iopamidol)
CAS:Formula:C16H20I3N3O8Color and Shape:Off-White SolidMolecular weight:763.06Nicotinic Acid EP Impurity E (Isoniazid EP Impurity A)
CAS:Formula:C6H5NO2Color and Shape:White To Off-White SolidMolecular weight:123.11Doxofylline Impurity 14
Formula:C12H18N4O5Color and Shape:White To Off-White SolidMolecular weight:298.30Sulbutiamine-d14
CAS:Formula:C32H32N8O6S2D14Color and Shape:White To Off-White SolidMolecular weight:716.99Lifitegrast Impurity 9
CAS:Formula:C20H20Cl2N2O5SColor and Shape:White To Off-White SolidMolecular weight:471.357-Hydroxy Ondansetron HCl
CAS:Formula:C18H19N3O2·HClColor and Shape:White To Off-White SolidMolecular weight:309.37 36.462-Oxo-R-Clopidogrel (Mixture of Diastereomers)
CAS:Formula:C16H16ClNO3SColor and Shape:White To Off-White SolidMolecular weight:337.82Pemetrexed Impurity 18 Sodium Salt
CAS:Formula:C21H22N5O6·NaColor and Shape:Pale Yellow SolidMolecular weight:440.44 22.99Uracil Impurity 5
CAS:Formula:C6H8N2O2Color and Shape:White To Off-White SolidMolecular weight:140.146-Mercaptopurine (Azathioprine EP Impurity B)
CAS:Formula:C5H4N4SColor and Shape:Yellow SolidMolecular weight:152.18Pemetrexed Disodium Salt
CAS:Formula:C20H19N5O6·2NaColor and Shape:White To Off-White SolidMolecular weight:425.40 2*22.99Mono-POC Ethyl Tenofovir Fumarate (Mixture of Diastereomers)
CAS:Formula:C16H26N5O7P·C4H4O4Color and Shape:White To Off-White SolidMolecular weight:431.39 116.07Nicotinic Acid Related Compound (3-Ethylpyridine)
CAS:Formula:C7H9NColor and Shape:Pale Brown LiquidMolecular weight:107.16Thiamine EP Impurity B Chloride HCl (2-Nor Thiamine Chloride HCl)
CAS:Formula:C11H15N4OS·Cl·HClColor and Shape:Pale Yellow SolidMolecular weight:251.33 35.45 36.46Prucalopride N-Oxide
CAS:Formula:C18H26ClN3O4Color and Shape:White To Off-White SolidMolecular weight:383.87Lifitegrast Impurity 10
Formula:C22H22Cl2N2O6SColor and Shape:White To Off-White SolidMolecular weight:513.39Caffeine Impurity 3
CAS:Formula:C7H10N4O3Color and Shape:White To Off-White SolidMolecular weight:198.18Trifluridine Impurity 10-13C, 15N2
CAS:Formula:C413CH5F315N2O2Color and Shape:White To Off-White SolidMolecular weight:185.08Tetrabenazine Impurity 43 (2S,3R,11bS)
CAS:Formula:C19H29NO3Color and Shape:White To Off-White SolidMolecular weight:319.45Sumatriptan EP Impurity E
CAS:Formula:C12H17N3O2SColor and Shape:Pale Yellow SolidMolecular weight:267.35Iopamidol EP Impurity I
Formula:C17H22ClI2N3O8Color and Shape:White To Off-White SolidMolecular weight:685.63Hydantoic Acid (N-Carboxymethylurea)
CAS:Formula:C3H6N2O3Color and Shape:White To Off-White SolidMolecular weight:118.09Trifluorothymine-13C-15N2
CAS:Formula:C413CH3F315N2O2Color and Shape:White To Off-White SolidMolecular weight:183.06Naratriptan
CAS:Formula:C17H25N3O2SColor and Shape:Off-White To Pale Yellow SolidMolecular weight:335.47Memantine HCl EP Impurity C (Memantine USP Related Compound C)
CAS:Formula:C12H19ClColor and Shape:Colorless LiquidMolecular weight:198.73Theophylline Impurity 19 (Mixture of Z and E Isomers)
CAS:Formula:C8H12O4Color and Shape:Colorless LiquidMolecular weight:172.181-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 Impurity 37
CAS:Formula:C10H15O6PSColor and Shape:Pale Yellow LiquidMolecular weight:294.26Tenofovir Impurity 43
CAS:Formula:C9H12O3SColor and Shape:White Solid To Semi-SolidMolecular weight:200.25Trifluridine Related Compound A
CAS:Formula:C10H12N2O7Color and Shape:Pale Yellow SolidMolecular weight:272.21Ondansetron EP Impurity C (Ondansetron USP Related Compound C)
CAS:Formula:C13H13NOColor and Shape:White To Off-White SolidMolecular weight:199.259-Desmethyl-α-Dihydro-Tetrabenazine
CAS:Formula:C18H27NO3Color and Shape:Off-White SolidMolecular weight:305.42Methotrexate EP Impurity J
CAS:Formula:C22H26N8O5Color and Shape:Bright Yellow SolidMolecular weight:482.50Idelalisib Impurity 8
CAS:Formula:C17H16FN3OColor and Shape:White To Off-White SolidMolecular weight:297.33n-POC-POC Tenofovir
CAS:Formula:C19H30N5O10PColor and Shape:Colorless Semi-SolidMolecular weight:519.45Sumatriptan EP Impurity C
CAS:Formula:C15H23N3O3SColor and Shape:White To Off-White SolidMolecular weight:325.43Nucleotide Compound Library
<p>A unique collection of xnum nucleoside and nucleotide analogues, can be used for research and development of anti-viral, anti-tumor, anti-fungal, and anti-</p>Color and Shape:Odour SolidTetrabenazine Impurity 37
CAS:Formula:C19H27NO3Color and Shape:White To Off-White SolidMolecular weight:317.43β-Nicotinamide Adenine Dinucleotide Sodium Salt
CAS:Formula:C21H26N7O14P2·NaMolecular weight:662.43 22.99Tetrabenazine Impurity 2
CAS:Formula:C19H27NO3Color and Shape:White To Off-White SolidMolecular weight:317.43Eletriptan Impurity 2
CAS:Formula:C30H34N2O4S2Color and Shape:Pale Yellow SolidMolecular weight:550.732-Oxo-Clopidogrel (Mixture of Diastereomers)
CAS:Formula:C16H16ClNO3SColor and Shape:Pale Brown SolidMolecular weight:337.82Ondansetron Impurity 1
CAS:Formula:C12H11NOColor and Shape:White To Off-White SolidMolecular weight:185.23Doxofylline Impurity 12
CAS:Formula:C11H16N4O4Color and Shape:White To Off-White SolidMolecular weight:268.27Rizatriptan-d6 Benzoate
CAS:Formula:C15H13D6N5·C7H6O2Color and Shape:White To Off-White SolidMolecular weight:275.39 122.12

