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2D Structure
Also known as: 696-07-1, 5-iodopyrimidine-2,4(1h,3h)-dione, 2,4(1h,3h)-pyrimidinedione, 5-iodo-, 5-iodo-1h-pyrimidine-2,4-dione, Uracil, 5-iodo-, 2,4-dihydroxy-5-iodopyrimidine
Molecular Formula
C4H3IN2O2
Molecular Weight
237.98  g/mol
InChI Key
KSNXJLQDQOIRIP-UHFFFAOYSA-N
FDA UNII
H59BRK500M

5-Iodouracil is a halogenated pyrimidine analog containing an iodine atom linked to a pyrimidine ring. 5-Iodouracil (IU) gets incorporated into DNA. IU is a metabolite of idoxuridine (IUdR; 5-iododeoxyuridine) and the IUdR prodrug ropidoxuridine (IPdR).
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
5-iodo-1H-pyrimidine-2,4-dione
2.1.2 InChI
InChI=1S/C4H3IN2O2/c5-2-1-6-4(9)7-3(2)8/h1H,(H2,6,7,8,9)
2.1.3 InChI Key
KSNXJLQDQOIRIP-UHFFFAOYSA-N
2.1.4 Canonical SMILES
C1=C(C(=O)NC(=O)N1)I
2.2 Other Identifiers
2.2.1 UNII
H59BRK500M
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 5-iodouracil, 123i-labeled

2. 5-iodouracil, 125i-labeled

3. 5-iodouracil, 128i-labeled

4. 5-iodouracil, 131i-labeled

5. 5-iodouracil, 2-(14)c, 125i-labeled

2.3.2 Depositor-Supplied Synonyms

1. 696-07-1

2. 5-iodopyrimidine-2,4(1h,3h)-dione

3. 2,4(1h,3h)-pyrimidinedione, 5-iodo-

4. 5-iodo-1h-pyrimidine-2,4-dione

5. Uracil, 5-iodo-

6. 2,4-dihydroxy-5-iodopyrimidine

7. 5-iodopyrimidine-2,4-diol

8. 5-iodo Uracil

9. 5-iodo-uracil

10. Nsc 57848

11. Chebi:43636

12. Mfcd00006020

13. Chembl1173

14. H59brk500m

15. Nsc57848

16. Nsc-57848

17. 5-iodo-1,2,3,4-tetrahydropyrimidine-2,4-dione

18. Iur

19. Einecs 211-788-2

20. Uracil, 5-iodo- (van)

21. Unii-h59brk500m

22. Ai3-50390

23. 5- Iodouracil

24. 5-iodo-1,3-dihydropyrimidine-2,4-dione

25. 5-iodouracil, 98%

26. Wln: T6mvmvj Fi

27. Epitope Id:138110

28. Schembl7884

29. Mls006011387

30. Dtxsid3061009

31. 2,3h)-pyrimidinedione, 5-iodo-

32. Act06642

33. Str02045

34. Zinc1092752

35. Bbl035414

36. Bdbm50124203

37. Stk577648

38. Stk697694

39. Stl415952

40. 5-iodo-2,4(1h,3h)-pyrimidinedione

41. Akos005203195

42. Akos005503329

43. Akos015963410

44. Akos026732157

45. 4-hydroxy-5-iodopyrimidin-2(1h)-one

46. Cs-w001983

47. Db03554

48. Gs-6885

49. Ps-4031

50. 5-iodo-2,4-dihydroxypyrimidine

51. 5-iodopyrimidine-2,4(1h, 3h)-dione

52. 5-iodo-2,4(1h,3h)-pyrimidinedione #

53. Ac-19702

54. Smr002529992

55. Sy015873

56. Db-055306

57. A9206

58. Am20100652

59. Ft-0620521

60. I0219

61. Sr-01000945135

62. J-802152

63. Sr-01000945135-1

64. W-104615

65. Q27094489

66. Z1741968233

67. N-(4-methoxybenzyl-n,n-dimethyl-n-2-pyridylethylenediaminemonohydrochloride

68. 5909-21-7

2.4 Create Date
2005-03-26
3 Chemical and Physical Properties
Molecular Weight 237.98 g/mol
Molecular Formula C4H3IN2O2
XLogP30
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass237.92392 g/mol
Monoisotopic Mass237.92392 g/mol
Topological Polar Surface Area58.2 Ų
Heavy Atom Count9
Formal Charge0
Complexity199
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1