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Alzen Food Blue No. 1
Also known as: 3844-45-9, Acid blue 9, Brilliant blue, Erioglaucine disodium salt, Fd&c blue no. 1, Erioglaucine
Molecular Formula
C37H34N2Na2O9S3
Molecular Weight
792.9  g/mol
InChI Key
SGHZXLIDFTYFHQ-UHFFFAOYSA-L
FDA UNII
PPQ093M8HR

1 2D Structure

Alzen Food Blue No. 1

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]benzenesulfonate
2.1.2 InChI
InChI=1S/C37H36N2O9S3.2Na/c1-3-38(25-27-9-7-11-33(23-27)49(40,41)42)31-19-15-29(16-20-31)37(35-13-5-6-14-36(35)51(46,47)48)30-17-21-32(22-18-30)39(4-2)26-28-10-8-12-34(24-28)50(43,44)45;;/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48);;/q;2*+1/p-2
2.1.3 InChI Key
SGHZXLIDFTYFHQ-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=CC=CC=C5S(=O)(=O)[O-].[Na+].[Na+]
2.2 Other Identifiers
2.2.1 UNII
PPQ093M8HR
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Acid Blue 9

2. Blue 4

3. Blue No. 1

4. Brilliant Blue

5. Brilliant Blue Al (3:1) Salt

6. Brilliant Blue Diammonium Salt

7. Brilliant Blue Dipotassium Salt

8. Brilliant Blue Fcf, Diammonium Salt

9. Brilliant Blue Potassium, Sodium Salt

10. Brilliant Blue, Aluminium Salt

11. Brilliant Blue, Disodium Salt

12. C.i. 42090

13. Caries Check Blue

14. Ci 42090

15. D And C Blue No.4

16. Dc Blue No. 4

17. Erioglaucine

18. F D And C Blue #1

19. Fd And C Blue No.1

20. Food Blue 2

2.3.2 Depositor-Supplied Synonyms

1. 3844-45-9

2. Acid Blue 9

3. Brilliant Blue

4. Erioglaucine Disodium Salt

5. Fd&c Blue No. 1

6. Erioglaucine

7. Alphazurine Fg

8. Blue 1206

9. Food Blue No. 1

10. Fd & C Blue No. 1

11. Dolkwal Brilliant Blue

12. Acid Sky Blue A

13. Hexacol Brilliant Blue A

14. Brilliant Blue Fcf Supra

15. Fd And C Blue No. 1

16. C.i. Food Blue 2

17. Food Blue 1

18. C.i. Acid Blue 9, Disodium Salt

19. Usacert Blue No. 1

20. Chebi:82411

21. 1206 Blue

22. Canacert Brilliant Blue Fcf

23. Ppq093m8hr

24. Fd&c Blue 1

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

26. Chembl3184128

27. Acid Blue 9;fd&c Blue No. 1;e133

28. Fenazo Blue Xi

29. Merantine Blue Eg

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

31. Cosmetic Blue Lake

32. Blue No. 1

33. Japan Blue No. 1

34. Intracid Pure Blue L

35. Fdc Blue No. 1

36. Erioglaucin A

37. Food Blue Dye No. 1

38. Modr Kysela 9 [czech]

39. Aizen Food Blue No. 2

40. Ccris 97

41. Modr Kysela 9

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

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

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

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

46. Modr Brilantni Fcf [czech]

47. Food Blue No.1

48. Modr Brilantni Fcf

49. Modr Potravinarska 2 [czech]

50. Modr Potravinarska 2

51. Usacert Fd And C Blue No. 1

52. Brilliant Blue Fcf, Disodium Salt

53. Brilliant Blue E 133

54. D&c Blue No. 1

55. E133

56. Einecs 223-339-8

57. Mfcd00012141

58. Unii-h3r47k3tbd

59. Unii-ppq093m8hr

60. Hsdb 7972

61. 8-(phenylamino)-5-[(e)-{4-[(e)-(3-sulfophenyl)diazenyl]naphthalen-1-yl}diazenyl]naphthalene-1-sulfonic Acid

62. Fd&c Blue #1

63. Dsstox_cid_189

64. Dsstox_rid_75422

65. H3r47k3tbd

66. Dsstox_gsid_20189

67. Schembl124486

68. Dtxsid2020189

69. Amy22374

70. Tox21_300516

71. Bdbm50574568

72. Akos037643360

73. Ncgc00254363-01

74. Ammonium, Ethyl(4-(p-(ethyl(m-sulfobenzyl)amino)-alpha-(o-sulfophenyl)benzylidene)-2,5-cyclohexadien-1-ylidene)(m-sulfobenzyl)-, Hydroxide, Inner Salt, Disodium Salt

75. As-15303

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

77. Cas-3844-45-9

78. B0790

79. F0147

80. Ft-0625694

81. C19352

82. D88693

83. Q420093

84. Disodium N-ethyl-n-4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfobenzenemethanaminium

85. Disodium Salt Of Ethyl(4-(p-(ethyl(m-sulfobenzyl)amino)-(alpha)-(o-sulfophenyl) Benzylidene)-2,5-cyclohexadien-1-ylidene)(m-sulfobenzyl) Ammonium Hydroxide Inner Salt

86. N-ethyl-n-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfobenzeneme- Thanaminium Hydroxide, Inner Salt, Disodium Salt

87. N-ethyl-n-4-4-ethyl(3-sulfophenyl)methylaminophenyl(2-sulfophenyl)methylene-2,5-cyclohexadien-1-ylidene-3-sulfo-benzenemethanaminium Inner Salt, Disodium Salt

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

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

2.4 Create Date
2005-07-19
3 Chemical and Physical Properties
Molecular Weight 792.9 g/mol
Molecular Formula C37H34N2Na2O9S3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count10
Rotatable Bond Count9
Exact Mass792.12218275 g/mol
Monoisotopic Mass792.12218275 g/mol
Topological Polar Surface Area203 Ų
Heavy Atom Count53
Formal Charge0
Complexity1510
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 MeSH Pharmacological Classification

Coloring Agents

Chemicals and substances that impart color including soluble dyes and insoluble pigments. They are used in INKS; PAINTS; and as INDICATORS AND REAGENTS. (See all compounds classified as Coloring Agents.)


4.2 Absorption, Distribution and Excretion

The absorption, metabolism and excretion of (14)C-labelled Green S and Brilliant Blue FCF have been studied in the rat, mouse and guinea-pig. Following administration of a single oral dose of Green S at either 100 ug/kg or 10 mg/kg of Brilliant Blue FCF at either 30 ug/kg or 3 mg/kg to male or female rats, substantially all of the dose was excreted unchanged in the feces within 72 hr. Pretreating male rats with unlabelled Green S or Brilliant Blue FCF in the diet (100 or 30 mg/kg day, respectively) for 21 days prior to dosing with (14)C-labelled coloring had no effect on the route of excretion or the time taken to eliminate all of the label. Similarly male mice and guinea-pigs excreted in the feces all of a single oral dose of Green S or Brilliant Blue FCF. The lack of absorption and metabolism of the labelled dye in the gastro-intestinal tract of all three species investigated was confirmed by studies using isolated loops of small intestine. It was shown that no radioactivity was taken up by the fetuses of pregnant rats given (14)C-labelled Green S or Brilliant Blue FCF.

Phillips JC et al; Food and Cosmetics Toxicology 18 (1): 7-13 (1980)


Female Sprague-Dawley rats were given a single dose (0.27 mg; 1.74 uCi) of the (14)C-labelled coloring by gavage. In bile-duct ligated rats, intestinal absorption of FD & C Blue No.1 (estimated from urinary (14)C excretion, expired (14)CO2 and residual radioactivity in internal organs and tissues 96 hr after oral administration) averaged 2.05% of the dose. Mean fecal excretion was 97.28% and the total recovery of administered radioactivity was 99.38%. Intestinal absorption (14)C-FD & C Blue No. 1 in intact rats averaged only 0.27% (91% recovery), while biliary excretion in bile-duct cannulated animals averaged 1.32% of the dose. Thin-layer chromatography of urine and bile samples revealed that about 95% of excreted radioactivity was unaltered FD & C Blue No. 1 and that about 5% was an unidentified metabolite or degradation product of FD & C Blue No. 1. The results show that FD & C Blue No.1 is poorly absorbed from the gastro-intestinal tract, and undergoes subsequent rapid and complete biliary excretion /of the absorbed compound/.

Brown JP et al; Food and Cosmetics Toxicology 18 (1): 1-5(1980)


... Less than 0.05% of a labeled dose of 3 mg/kg bw was excreted in the bile of rats over a 5-hour period. Very little radioactivity (0.004 - 0.006% of dose) was detected on day 11 in the fetuses of pregnant rats given (14)C-labelled Brilliant Blue FCF orally on day 8 of gestation. ... Brilliant Blue FCF was labeled with (14)C in the central methane ring and had a radioactive purity of greater than 95%. ...

European Food Safety Authority (EFSA); Scientific Opinion of the ANS Panel on the re-evaluation of Brilliant Blue FCF (E 133) Published: 22 November 2010 Available from, as of July 1, 2011: https://www.efsa.europa.eu/en/publications.htm


Following administration of either 30 ug/kg bw or 3 mg/kg bw of (14)C-Brilliant Blue FCF by gavage to male or female rats, substantially all of the dose was excreted unchanged in the feces within 72 hours (99.9% at low dose, 95.4% at high dose). No radioactivity was detected in the expired air and less than 0.5% was detected in the urine. ...

European Food Safety Authority (EFSA); Scientific Opinion of the ANS Panel on the re-evaluation of Brilliant Blue FCF (E 133) Published: 22 November 2010 Available from, as of July 1, 2011: https://www.efsa.europa.eu/en/publications.htm


For more Absorption, Distribution and Excretion (Complete) data for Brilliant Blue (6 total), please visit the HSDB record page.


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