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2D Structure
Also known as: 2353-45-9, Food green 3, Fd&c green no. 3, Solid green fcf, Food green no. 3, Fd & c green no. 3
Molecular Formula
C37H34N2Na2O10S3
Molecular Weight
808.9  g/mol
InChI Key
RZSYLLSAWYUBPE-UHFFFAOYSA-L
FDA UNII
9J3VQ0Y6BV

1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzenesulfonate
2.1.2 InChI
InChI=1S/C37H36N2O10S3.2Na/c1-3-38(24-26-7-5-9-33(21-26)50(41,42)43)30-15-11-28(12-16-30)37(35-20-19-32(40)23-36(35)52(47,48)49)29-13-17-31(18-14-29)39(4-2)25-27-8-6-10-34(22-27)51(44,45)46;;/h5-23H,3-4,24-25H2,1-2H3,(H3,41,42,43,44,45,46,47,48,49);;/q;2*+1/p-2
2.1.3 InChI Key
RZSYLLSAWYUBPE-UHFFFAOYSA-L
2.1.4 Canonical SMILES
CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=C(C=C(C=C5)O)S(=O)(=O)[O-].[Na+].[Na+]
2.2 Other Identifiers
2.2.1 UNII
9J3VQ0Y6BV
2.3 Synonyms
2.3.1 MeSH Synonyms

1. C.i. 42053

2. F D And C Green #3

3. F D And C Green No. 3

4. Fd And C Green No. 3

5. Fdc Green No. 3

6. Food Green 3

7. Green No. 3

2.3.2 Depositor-Supplied Synonyms

1. 2353-45-9

2. Food Green 3

3. Fd&c Green No. 3

4. Solid Green Fcf

5. Food Green No. 3

6. Fd & C Green No. 3

7. C.i. 42053

8. 9j3vq0y6bv

9. Disodium;2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzenesulfonate

10. Chebi:82468

11. 5-[[4-[ethyl-[(3-sulfophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]-2-hydroxybenzenesulfonate

12. Fast Green Fcf 100 Microg/ml In Acetonitrile/water

13. 1724 Green

14. Zelen Stala Fcf [czech]

15. Ccris 1867

16. Zelen Potravinarska 3 [czech]

17. Nsc-379443

18. Einecs 219-091-5

19. Mfcd00013053

20. Unii-3p3onr6o1s

21. Unii-9j3vq0y6bv

22. Nsc 379443

23. Ci 42053

24. Fast-green

25. Fastgreenfcf

26. Hsdb 7973

27. Japan Green 3

28. Fd&c Green #3

29. Benzenemethanaminium,n-ethyl-n-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-hydroxy-2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, Inner Salt,disodium Salt

30. Dsstox_cid_673

31. Fast Green [fcc]

32. 3p3onr6o1s

33. Dsstox_rid_75724

34. Dsstox_gsid_20673

35. Schembl67371

36. Fast Green Fcf [mi]

37. Benzenemethanaminium, N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hydroxy-2-sulfophenyl)methylene)-2,5-c

38. Benzenemethanaminium, N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hydroxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, Hydroxide, Inner Salt, Disodium Salt

39. Schembl126069

40. Chembl3188843

41. Dtxsid3020673

42. Amy22359

43. C1 Food Green 3, Cl 42053

44. Fast Green Fcf, Analytical Standard

45. Tox21_302086

46. Fast Green Fcf, Dye Content >=85 %

47. Ncgc00255331-01

48. Ammonium, Ethyl(4-(alpha-(p-(ethyl(m-sulfobenzyl)amino)phenyl)-4-hydroxy-3-sulfobenzylidene)-2,5-cyclohexadien-1-ylidene)(m-sulfobenzyl)-, Hydroxide, Inner Salt, Disodium Salt

49. As-83516

50. Benzenemethanaminium, N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- Roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- O-, Hydroxide, Inner Salt, Disodium Salt

51. Benzenemethanaminium, N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hydroxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, Inner Salt, Disodium Salt

52. Dihydrogen (ethyl)(4-(4-(ethyl(3-sulphonatobenzyl)amino)(4-hydroxy-2-sulphonatobenzhydrylidene)cyclohexa-2,5-dien-1-ylidene)(3-sulphonatobenzyl)ammonium, Disodium Salt

53. Disodium 2-{(z)-(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)[(4z)-4-{ethyl[(3-sulfonatophenyl)methyl]iminio}cyclohexa-2,5-dien-1-ylidene]methyl}-5-hydroxybenzenesulfonate

54. Ethyl (4-(alpha-(p-(ethyl(m-sulfobenzyl)amino)phenyl)-4-hydroxy-3-sulfobenzylidene)-2,5-cyclohexadien-1-ylidene)(m-sulfobenzyl)ammonium Hydroxide Inner Salt Disodium Salt

55. N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hyd- Roxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulf- Obenzenemethanaminium Hydroxide, Inner Salt, Disodium Salt

56. Cas-2353-45-9

57. F0099

58. F0146

59. F0718

60. Ft-0626390

61. D90631

62. Q898299

63. Fast Green Fcf, Certified By The Biological Stain Commission

64. Benzenemethanaminium, N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(4-hydroxy-2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, Inner Salt, Sodium Salt (1:2)

65. Disodium 2-[(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)[(1e,4e)-4-{ethyl[(3-sulfonatophenyl)methyl]iminiumyl}cyclohexa-2,5-dien-1-ylidene]methyl]-5-hydroxybenzene-1-sulfonate

66. Disodium 2-{(4-{ethyl[(3-sulfonatophenyl)methyl]amino}phenyl)[4-{ethyl[(3-sulfonatophenyl)methyl]iminio}cyclohexa-2,5-dien-1-ylidene]methyl}-5-hydroxybenzene-1-sulfonate

67. Sodium 2-((4-(ethyl(3-sulfonatobenzyl)amino)phenyl)(4-(ethyl(3-sulfonatobenzyl)iminio)cyclohexa-2,5-dien-1-ylidene)methyl)-5-hydroxybenzenesulfonate

68. Sodium 2-((e)-(4-(ethyl(3-sulfonatobenzyl)amino)phenyl)((e)-4-(ethyl(3-sulfonatobenzyl)iminio)cyclohexa-2,5-dienylidene)methyl)-5-hydroxybenzenesulfonate

2.4 Create Date
2005-07-19
3 Chemical and Physical Properties
Molecular Weight 808.9 g/mol
Molecular Formula C37H34N2Na2O10S3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count11
Rotatable Bond Count9
Exact Mass808.11709737 g/mol
Monoisotopic Mass808.11709737 g/mol
Topological Polar Surface Area223 Ų
Heavy Atom Count54
Formal Charge0
Complexity1540
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count3
4 Pharmacology and Biochemistry
4.1 Absorption, Distribution and Excretion

Following i.v. injection in rats, over 90% of the /Fast Green FCF/ was excreted in the bile within 4 hours.

FAO/WHO; Expert Committee on Food Additives (JECFA): Food Additives Series 20 for Fast Green FCF (2353-45-9). (1985) Available from, as of June 22, 2011: https://www.inchem.org/pages/jecfa.html


Dogs were given orally 200 mg of the /Fast Green FCF/... a bile fistula was made for bile analysis. ... The amount of /Fast Green FCF found in the bile/ never exceeded 5% of the given dose. ...

FAO/WHO; Expert Committee on Food Additives (JECFA): Food Additives Series 20 for Fast Green FCF (2353-45-9). (1985) Available from, as of June 22, 2011: https://www.inchem.org/pages/jecfa.html


Rats ... were given orally 200 mg of the /Fast Green FCF/... the urine and feces were collected for 36 hours. ... Almost all the administered /Fast Green FCF/ was excreted unchanged in the feces of rats. No /Fast Green FCF/ was found in the urine. ...

FAO/WHO; Expert Committee on Food Additives (JECFA): Food Additives Series 20 for Fast Green FCF (2353-45-9). (1985) Available from, as of June 22, 2011: https://www.inchem.org/pages/jecfa.html