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2D Structure
Also known as: Melanotan ii, 121062-08-6, Upf5cj93x7, Dtxsid90153135, L-lysinamide, n-acetyl-l-norleucyl-l-alpha-aspartyl-l-histidyl-d-phenylalanyl-l-arginyl-l-tryptophyl-, cyclic (2-7)-peptide, Refchem:925444
Molecular Formula
C50H69N15O9
Molecular Weight
1024.2  g/mol
InChI Key
JDKLPDJLXHXHNV-MFVUMRCOSA-N
FDA UNII
UPF5CJ93X7

synthetic cyclic heptapeptide, an analog of alpha-melanotropin (4,10); capable of stimulating melanin synthesis & promoting rapid tanning of skin; currently in trials for use in the prevention of sunlight-induced skin cancer
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
(3S,6S,9R,12S,15S,23S)-15-[[(2S)-2-acetamidohexanoyl]amino]-9-benzyl-6-[3-(diaminomethylideneamino)propyl]-12-(1H-imidazol-5-ylmethyl)-3-(1H-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexazacyclotricosane-23-carboxamide
2.1.2 InChI
InChI=1S/C50H69N15O9/c1-3-4-16-36(59-29(2)66)44(69)65-41-25-42(67)55-20-11-10-18-35(43(51)68)60-47(72)39(23-31-26-57-34-17-9-8-15-33(31)34)63-45(70)37(19-12-21-56-50(52)53)61-46(71)38(22-30-13-6-5-7-14-30)62-48(73)40(64-49(41)74)24-32-27-54-28-58-32/h5-9,13-15,17,26-28,35-41,57H,3-4,10-12,16,18-25H2,1-2H3,(H2,51,68)(H,54,58)(H,55,67)(H,59,66)(H,60,72)(H,61,71)(H,62,73)(H,63,70)(H,64,74)(H,65,69)(H4,52,53,56)/t35-,36-,37-,38+,39-,40-,41-/m0/s1
2.1.3 InChI Key
JDKLPDJLXHXHNV-MFVUMRCOSA-N
2.2 Other Identifiers
2.2.1 UNII
UPF5CJ93X7
2.3 Synonyms
2.3.1 Depositor-Supplied Synonyms

1. Melanotan Ii

2. 121062-08-6

3. Upf5cj93x7

4. Dtxsid90153135

5. L-lysinamide, N-acetyl-l-norleucyl-l-alpha-aspartyl-l-histidyl-d-phenylalanyl-l-arginyl-l-tryptophyl-, Cyclic (2-7)-peptide

6. Refchem:925444

7. Dtxcid3075626

8. Mt-ii

9. Melanotan (mt)-ii

10. Melatonan

11. Melanotan Ii Acetate Salt

12. Chembl430239

13. (3s,6s,9r,12s,15s,23s)-15-[[(2s)-2-acetamidohexanoyl]amino]-9-benzyl-6-[3-(diaminomethylideneamino)propyl]-12-(1h-imidazol-5-ylmethyl)-3-(1h-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexazacyclotricosane-23-carboxamide

14. C50h69n15o9

15. (3s,6s,9r,12s,15s,23s)-12-((1h-imidazol-5-yl)methyl)-3-((1h-indol-3-yl)methyl)-15-((s)-2-acetamidohexanamido)-9-benzyl-6-(3-guanidinopropyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosane-23-carboxamide

16. Mtii

17. Melanotanii

18. Melanotan Ii?

19. Ac-nle-cyclo[asp-his-d-phe-arg-trp-lys]-nh2

20. Unii-upf5cj93x7

21. Melanotan Ii [who-dd]

22. Ebi_340792

23. Gtpl1323

24. Orb1296657

25. Schembl1047531

26. Schembl29473785

27. Chebi:195326

28. Ex-a7394

29. Hy-p0267

30. 121062-08-6 (non-salt)

31. Bdbm50027084

32. Bdbm50184359

33. Mfcd06795842

34. Akos015994654

35. Hs-2017

36. Ncgc00167281-01

37. Da-55328

38. Fa109114

39. F93947

40. 062m086

41. Q423855

42. Acetyl-(nle4,asp5,d-phe7,lys10)-cyclo-alpha-msh (4-10) Amide

43. (3s,6s,9r,12s,15s,23s)-12-((1h-imidazol-5-yl)methyl)-3-((1h-indol-3-yl)methyl)-15-((s)-2-acetamidohexanamido)-9-benzyl-6-(3-((diaminomethylene)amino)propyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosane-23-carboxamide

44. (3s,6s,9r,12s,15s,23s)-15-((s)-2-acetylamino-hexanoylamino)-9-benzyl-6-(3-guanidino-propyl)-12-(3h-imidazol-4-ylmethyl)-3-(1h-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18hexaaza-cyclotricosane-23-carboxylic Acid Amide

45. (3s,6s,9r,12s,15s,23s)-15-[(n-acetyl-l-norleucyl)amino]-9-benzyl-6-{3-[(diaminomethylidene)amino]propyl}-12-[(1h-imidazol-5-yl)methyl]-3-[(1h-indol-3-yl)methyl]-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosane-23-carboxamide

46. (3s,6s,9r,12s,15s,23s)-15-[[(2s)-2-acetamidohexanoyl]amino]-9-benzyl-6-(3-guanidinopropyl)-12-(1h-imidazol-5-ylmethyl)-3-(1h-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexazacyclotricosane-23-carboxamide

47. (3s,6s,9r,12s,15s,23s)-9-benzyl-6-{3-[(diaminomethylidene)amino]propyl}-15-[(2s)-2-acetamidohexanamido]-12-(1h-imidazol-5-ylmethyl)-3-(1h-indol-3-ylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosane-23-carboxamide

48. L-lysinamide, N-acetyl-l-norleucyl-l-.alpha.-aspartyl-l-histidyl-d-phenylalanyl-l-arginyl-l-tryptophyl-, Cyclic (2->7)-peptide

2.4 Create Date
2005-08-08
3 Chemical and Physical Properties
Molecular Weight 1024.2 g/mol
Molecular Formula C50H69N15O9
XLogP30
Hydrogen Bond Donor Count13
Hydrogen Bond Acceptor Count11
Rotatable Bond Count17
Exact Mass Da
Monoisotopic Mass Da
Topological Polar Surface Area385
Heavy Atom Count74
Formal Charge0
Complexity1950
Isotope Atom Count0
Defined Atom Stereocenter Count7
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1