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2D Structure
Also known as: Potassium p-aminobenzoate, 138-84-1, Potassium 4-aminobenzoate, 4-aminobenzoic acid potassium salt, 4-aminobenzoate potassium salt, Benzoic acid, 4-amino-, monopotassium salt
Molecular Formula
C7H6KNO2
Molecular Weight
175.23  g/mol
InChI Key
MZKKJVZIFIQOPP-UHFFFAOYSA-M
FDA UNII
41KZS5432U

An aminobenzoic acid isomer that combines with pteridine and GLUTAMIC ACID to form FOLIC ACID. The fact that 4-aminobenzoic acid absorbs light throughout the UVB range has also resulted in its use as an ingredient in SUNSCREENS.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
potassium;4-aminobenzoate
2.1.2 InChI
InChI=1S/C7H7NO2.K/c8-6-3-1-5(2-4-6)7(9)10;/h1-4H,8H2,(H,9,10);/q;+1/p-1
2.1.3 InChI Key
MZKKJVZIFIQOPP-UHFFFAOYSA-M
2.1.4 Canonical SMILES
C1=CC(=CC=C1C(=O)[O-])N.[K+]
2.2 Other Identifiers
2.2.1 UNII
41KZS5432U
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 4 Aminobenzoic Acid

2. 4 Aminobenzoic Acid, Potassium Salt

3. 4-aminobenzoate, Potassium

4. 4-aminobenzoic Acid

5. 4-aminobenzoic Acid, Potassium Salt

6. Aminobenzoate, Potassium

7. Aminobenzoic Acid (usp)

8. Epit Vit

9. Epitelplast

10. Hachemina

11. Magnesium Para-aminobenzoate

12. P Aminobenzoic Acid

13. P-aminobenzoic Acid

14. Paba

15. Pabasan

16. Para Aminobenzoic Acid

17. Para-aminobenzoate, Magnesium

18. Para-aminobenzoic Acid

19. Paraminan

20. Paraminol

21. Potaba

22. Potassium 4 Aminobenzoate

23. Potassium 4-aminobenzoate

24. Potassium Aminobenzoate

2.3.2 Depositor-Supplied Synonyms

1. Potassium P-aminobenzoate

2. 138-84-1

3. Potassium 4-aminobenzoate

4. 4-aminobenzoic Acid Potassium Salt

5. 4-aminobenzoate Potassium Salt

6. Benzoic Acid, 4-amino-, Monopotassium Salt

7. Potassium;4-aminobenzoate

8. Aminobenzoate Potassium [usp]

9. 41kzs5432u

10. 4-aminobenzoic Acid (monopotassium Salt)

11. Aminobenzoate Potassium (usp)

12. Paba Monopotassium Salt;vitamin Bx Monopotassium Salt;vitamin H1 Monopotassium Salt

13. Nsc-755861

14. Potassium,4-aminobenzoate

15. Potassium Para-aminobenzoate

16. Benzoic Acid, 4-amino-, Potassium Salt (1:1)

17. Unii-41kzs5432u

18. Einecs 205-338-4

19. Mfcd00064911

20. Potaba (tn)

21. Potassium Paba

22. Mls001334047

23. Schembl269265

24. Spectrum1500113

25. Chembl1564391

26. Dtxsid8059683

27. 4-aminobenzoic Acid (potassium)

28. Hms502h05

29. Hms1920c05

30. Hms2091i05

31. Hms2231h13

32. Hms3369h15

33. Potassium Aminobenzoate [mi]

34. Ccg-38921

35. P-aminobenzoicacidpotassiumsalt

36. Akos003051478

37. Akos015966234

38. Nsc 755861

39. Potassium Aminobenzoate [mart.]

40. Aminobenzoate Potassium [usp-rs]

41. Potassium Aminobenzoate [who-dd]

42. Ncgc00094583-01

43. Ncgc00094583-02

44. As-15795

45. Smr000875315

46. Db-042449

47. Potassium Para-aminobenzoate [vandf]

48. Cs-0013318

49. Ft-0631806

50. Aminobenzoate Potassium [usp Monograph]

51. D02906

52. E77938

53. W-108226

54. Q27258445

55. F1905-6982

2.4 Create Date
2008-02-05
3 Chemical and Physical Properties
Molecular Weight 175.23 g/mol
Molecular Formula C7H6KNO2
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count3
Rotatable Bond Count1
Exact Mass175.00355992 g/mol
Monoisotopic Mass175.00355992 g/mol
Topological Polar Surface Area66.2 Ų
Heavy Atom Count11
Formal Charge0
Complexity132
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Pharmacology and Biochemistry
4.1 ATC Code

D - Dermatologicals

D11 - Other dermatological preparations

D11A - Other dermatological preparations

D11AX - Other dermatologicals

D11AX23 - Aminobenzoate potassium