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2D Structure
Also known as: Heme, Heme b, 14875-96-8, Ferroprotoporphyrin, Ferroheme, Reduced hematin
Molecular Formula
C34H32FeN4O4
Molecular Weight
616.5  g/mol
InChI Key
KABFMIBPWCXCRK-UHFFFAOYSA-L
FDA UNII
42VZT0U6YR

The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
3-[18-(2-carboxyethyl)-8,13-bis(ethenyl)-3,7,12,17-tetramethylporphyrin-21,24-diid-2-yl]propanoic acid;iron(2+)
2.1.2 InChI
InChI=1S/C34H34N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2
2.1.3 InChI Key
KABFMIBPWCXCRK-UHFFFAOYSA-L
2.1.4 Canonical SMILES
CC1=C(C2=CC3=C(C(=C([N-]3)C=C4C(=C(C(=N4)C=C5C(=C(C(=N5)C=C1[N-]2)C)C=C)C)C=C)C)CCC(=O)O)CCC(=O)O.[Fe+2]
2.2 Other Identifiers
2.2.1 UNII
42VZT0U6YR
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Ferroprotoporphyrin

2. Haem

3. Heme

4. Heme B

5. Protoheme Ix

2.3.2 Depositor-Supplied Synonyms

1. Heme

2. Heme B

3. 14875-96-8

4. Ferroprotoporphyrin

5. Ferroheme

6. Reduced Hematin

7. Haem

8. Protoheme Ix

9. Iron Protoporphyrin Ix

10. Hematin

11. Protohaem

12. Ferrous Protoheme

13. Iron Protoporphyrin

14. Ferrous Protoheme Ix

15. Ferroprotoporphyrin Ix

16. 42vzt0u6yr

17. Iron(ii) Protoporphyrin Ix

18. Normosang

19. 3-[18-(2-carboxyethyl)-8,13-bis(ethenyl)-3,7,12,17-tetramethylporphyrin-21,24-diid-2-yl]propanoic Acid;iron(2+)

20. Protoheme Ix (van)

21. Ferroheme (van)

22. Heme (van)

23. Hem

24. Unii-42vzt0u6yr

25. Nsc 16669

26. Globifer

27. Nsc 267100

28. Human Hemin

29. Heme Iron

30. Heme [mi]

31. Gtpl4349

32. Mfcd00870215

33. Ferrate(2-), (7,12-diethenyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(4-)-n21,n22,n23,n24)-, Dihydrogen, (sp-4-2)-

34. 85758-ep2270016a1

35. 85758-ep2270505a1

36. 85758-ep2305243a1

37. 85758-ep2305825a1

38. Q620084

39. Iron, (dihydrogen 3,7,12,17-tetramethyl-8,13-divinyl-2,18-porphinedipropionato(2-))-

40. [7,12-diethenyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(4-)-n^21,n^22,n^23,n^24]-ferrate(2-)dihydrogen

41. 3-[18-(2-carboxyethyl)-3,8,13,17-tetramethyl-7,12-divinyl-porphyrin-21,23-diid-2-yl]propanoic Acid

42. Ferrate(2-), (7,12-diethenyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(4-)-kappan21,kappan22,kappan23,kappan24)-, Dihydrogen, (sp-4-2)-

43. Ferrate(2-), (7,12-diethenyl-3,8,13,17-tetramethyl-21h,23h-porphine-2,18-dipropanoato(4-)-kappan21,kappan22,kappan23,kappan24)-, Hydrogen (1:2), (sp-4-2)-

44. Ferrous 3-[(1z,4z,9z,15z)-18-(2-carboxyethyl)-3,7,12,17-tetramethyl-8,13-divinyl-21,23-dihydroporphyrin-2-yl]propanoic Acid

2.4 Create Date
2005-08-01
3 Chemical and Physical Properties
Molecular Weight 616.5 g/mol
Molecular Formula C34H32FeN4O4
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count8
Rotatable Bond Count8
Exact Mass616.177291 g/mol
Monoisotopic Mass616.177291 g/mol
Topological Polar Surface Area102 Ų
Heavy Atom Count43
Formal Charge0
Complexity1010
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2