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2D Structure
Also known as: Urea hydrogen peroxide, 124-43-6, Percarbamide, Urea peroxide, Urea dioxide, Urea hydroperoxide
Molecular Formula
CH6N2O3
Molecular Weight
94.07  g/mol
InChI Key
AQLJVWUFPCUVLO-UHFFFAOYSA-N
FDA UNII
31PZ2VAU81

A urea peroxide compound that is commonly used in tooth whitening agents; topical anti-infective agents, and earwax remover.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
hydrogen peroxide;urea
2.1.2 InChI
InChI=1S/CH4N2O.H2O2/c2-1(3)4;1-2/h(H4,2,3,4);1-2H
2.1.3 InChI Key
AQLJVWUFPCUVLO-UHFFFAOYSA-N
2.1.4 Canonical SMILES
C(=O)(N)N.OO
2.2 Other Identifiers
2.2.1 UNII
31PZ2VAU81
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Hydrogen Peroxide, Urea

2. Perhydrol Urea

3. Urea Hydrogen Peroxide

4. Urea Peroxide

2.3.2 Depositor-Supplied Synonyms

1. Urea Hydrogen Peroxide

2. 124-43-6

3. Percarbamide

4. Urea Peroxide

5. Urea Dioxide

6. Urea Hydroperoxide

7. Hydroperit

8. Hydroperite

9. Percarbamid

10. Perhydrit

11. Thenardol

12. Hyperol

13. Ortizon

14. Perhydrol-urea

15. Hydrogen Peroxide Carbamide

16. Hydrogen Peroxide Urea

17. Murine Ear Drops

18. Urea Compound With Hydrogen Peroxide (1:1)

19. Carbamide Peroxide, Solution

20. Hydrogen Peroxide;urea

21. Hydrogen Peroxide-urea Adduct

22. Urea Hydrogen Peroxide Adduct

23. Urea, Compd. With Hydrogen Peroxide (1:1)

24. Carbamide Peroxide [usp]

25. Urea, Compd. With Hydrogen Peroxide (h2o2) (1:1)

26. 31pz2vau81

27. Chebi:75178

28. Nsc-24852

29. Carbamide Peroxide (usp)

30. 14479-85-7

31. Hydrogen Peroxide; Urea

32. Proxigel

33. Debrox

34. Gly-oxide

35. Thera-ear

36. Ear Wax Treatment

37. Ureahydrogenperoxide

38. Auro Ear Wax Remover

39. Einecs 204-701-4

40. Nsc 24852

41. Un1511

42. Unii-31pz2vau81

43. Per Carbamide

44. Hydrogen Peroxide, Compd. With Urea (1:1)

45. Carbamide Peroxide Otic Solution

46. Mfcd00013119

47. Urea-hydrogen Peroxide

48. Urea.h2o2

49. Hydrogen Peroxide.urea

50. H2o2 Urea

51. Murine Ear Drops (tn)

52. Dsstox_cid_4726

53. Wln: Zvz & Qq

54. Dsstox_rid_77512

55. Dsstox_gsid_24726

56. Hydrogen Peroxide Urea Adduct

57. Urea Peroxide [inci]

58. Urea Hydrogen Peroxide, 97%

59. Carbamide Peroxide [mi]

60. Chembl3184026

61. Dtxsid9024726

62. Carbamide Peroxide [vandf]

63. Hydrogen Peroxide - Urea (1:1)

64. Urea, Compd. With Peroxide (1:)

65. Nsc24852

66. Tox21_302451

67. Urea Compound With Hydrogen Peroxide

68. Hydrogen Peroxide-urea Adduct, Tablet

69. Akos015904087

70. Db11129

71. Hydrogen Peroxide Urea ;perhydrol-urea

72. Hydrogen Peroxide-urea Compound (1:1)

73. Urea Hydrogen Peroxide (1:1)

74. Urea Hydrogen Peroxide [mart.]

75. Urea Hydrogen Peroxide [who-dd]

76. Ncgc00256660-01

77. (h2 N)2 C O (h2 O2)

78. Carbamide Peroxide [usp Monograph]

79. Cas-124-43-6

80. Hydrogen Peroxide, Compd. With Urea(1:1)

81. Urea, Compd. With Hydrogen Peroxide(1:1)

82. D03383

83. Urea Hydrogen Peroxide [un1511] [oxidizer]

84. A805233

85. J-005078

86. J-525152

87. Q-200793

88. Q2633879

89. Hydrogen Peroxide-urea Adduct, Usp, 96.0-102.0%

90. Hydrogen Peroxide-urea Adduct, Powder, 15-17% Active Oxygen Basis

91. Hydrogen Peroxide-urea Adduct, Purum P.a., "rapid-soluble", Tablet (1 G Each)

92. Uhp

2.4 Create Date
2005-03-26
3 Chemical and Physical Properties
Molecular Weight 94.07 g/mol
Molecular Formula CH6N2O3
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass94.03784206 g/mol
Monoisotopic Mass94.03784206 g/mol
Topological Polar Surface Area110 Ų
Heavy Atom Count6
Formal Charge0
Complexity29
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Drug and Medication Information
4.1 Drug Indication

Indicated as a dental bleaching agent. Indicated as an oral wound healing agent in oral mucosal injuries. Indicated as an aid in the removal of hardened ear wax.


5 Pharmacology and Biochemistry
5.1 Pharmacology

Carbamide peroxide releases hydrogen peroxide and free radicals upon contact with water or outer surfaces of ear and tooth. Hydrogen peroxide exerts cerumenolytic, enamel-bleaching and antiseptic actions. _In vitro_, the chemical stability of ceramics against bleaching agents was observed after treatment with 15% carbamide peroxide for 56 h, 16% carbamide peroxide for 126 h, 10% or 15% carbamide peroxide and 38% hydrogen peroxide for 30 minutes or 45 minutes, respectively. According to _in vitro_ studies, high (37%) or low (10 or 16%) concentrated carbamide peroxide agents were similarly effective as oral bleaching agents. Treatment with carbamide peroxide may lead to demineralization which involves decreased mineral content of enamel calcium, phosphate, and fluoride, and alteration of the chemical, structural, and mechanical properties. Carbamide peroxide may affect the organic components of the enamel and lead to increased susceptibility to erosion, fracture stability or decreased abrasion resistance of the treated area.


5.2 MeSH Pharmacological Classification

Anti-Infective Agents, Local

Substances used on humans and other animals that destroy harmful microorganisms or inhibit their activity. They are distinguished from DISINFECTANTS, which are used on inanimate objects. (See all compounds classified as Anti-Infective Agents, Local.)


Tooth Bleaching Agents

Chemicals that are used to oxidize pigments in TEETH and thus effect whitening. (See all compounds classified as Tooth Bleaching Agents.)


5.3 Absorption, Distribution and Excretion

Absorption

Upon treatment into the external auditory canal or the dental cavity, exposure to carbamide peroxide is limited to the intimate contact with the treated area without any systemic absorption.


Route of Elimination

No established pharmacokinetic data.


Volume of Distribution

No established pharmacokinetic data.


Clearance

No established pharmacokinetic data.


5.4 Metabolism/Metabolites

No established pharmacokinetic data.


5.5 Biological Half-Life

No established pharmacokinetic data.


5.6 Mechanism of Action

Carbamide peroxide release hydrogen peroxide upon contact with teeth, which is a strong oxidizing and bleaching agent. It also release free radicals such as H+ or H3O+. Hydrogen peroxide also acts as an antiseptic, especially in sites with relative anaerobiosis. Following otic administration, carbamide peroxide complex releases hydrogen peroxide that breaks up the hardened wax. The hydrogen peroxide component, which further breaks down into water, is also a cerumenolytic that hydrates the desquamated sheets of corneocytes, which are the major constituent of cerumen plugs. The glycerol and urea facilitates softening of the cerumen, either with or without syringing. Both hydrogen peroxide and urea mildly induce keratolysis with disintegration of the ear wax to help reduce the keratin-load in the ear debris and allow other active components to reach the skin under the debris.