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2D Structure
Also known as: Eosin yellowish, Eosine yellowish, Eosine, C.i. acid red 87, Eosine g, Eosin ys
Molecular Formula
C20H6Br4Na2O5
Molecular Weight
691.9  g/mol
InChI Key
SEACYXSIPDVVMV-UHFFFAOYSA-L
FDA UNII
TDQ283MPCW

A versatile red dye used in cosmetics, pharmaceuticals, textiles, etc., and as tissue stain, vital stain, and counterstain with HEMATOXYLIN. It is also used in special culture media.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate
2.1.2 InChI
InChI=1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
2.1.3 InChI Key
SEACYXSIPDVVMV-UHFFFAOYSA-L
2.2 Other Identifiers
2.2.1 UNII
TDQ283MPCW
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Acid Red 87

2. C.i. Acid Red 87

3. Eosin (yellowish) (free Acid)

4. Eosin Y

5. Eosine

6. Eosine Yellowish

7. Eosine Yellowish-(ys)

8. Eosine Yellowish-(ys), Dipotassium Salt

9. Eosine Yellowish-(ys), Potassium, Sodium Salt

10. Tetrabromofluorescein

2.3.2 Depositor-Supplied Synonyms

1. Eosin Yellowish

2. Eosine Yellowish

3. Eosine

4. C.i. Acid Red 87

5. Eosine G

6. Eosin Ys

7. Bromoeosine

8. Sodium Eosine

9. Bromo Acid

10. 548-26-5

11. Eosine Y

12. Sodium Eosinate

13. Eosin Y Disodium Salt

14. D And C Red No. 22

15. Bromofluoresceic Acid

16. Bronze Bromo

17. Certiqual Eosine

18. Aizen Eosine Gh

19. Bromo Fluorescein

20. Eosine A

21. Eosine J

22. Eosine Bs

23. Eosine Da

24. Eosine Fa

25. Eosine Gf

26. Eosine Oj

27. Eosine Salt Free

28. Eosine W/s

29. Eosine Yb

30. Eosine Ys

31. Phloxine Toner B

32. Toyo Eosine G

33. Bromo B

34. Eosine Bpc

35. Pure Eosine Yy

36. Bromo Fl

37. Bromo Ts

38. Bromo Xx

39. Fenazo Eosine Xg

40. Bromo Jps

41. Eosine 3g

42. Eosine 3y

43. Eosine Bs-sf

44. Bromo 4d

45. Bromo 4dc

46. Bromo 4dl

47. Eosine Lake Red Y

48. Hidacid White Bromo

49. Symuler Eosin Toner

50. Eosine K Salt Free

51. D&c Red No. 22

52. C.i. 45380

53. Eosine Dwc 73

54. Hidacid Boiling Bromo

55. Eosine S 13

56. 1903 Yellow Pink

57. Tetrabromofluorescein D

58. Tetrabromofluorescein S

59. 2,4,5,7-tetrabromo-3,6-fluorandiol

60. Ci 45380 (na Salt)

61. Irgalite Bronze Red Cl

62. Bromo X-100

63. 2',4',5',7'-tetrabromofluorescein Disodium Salt

64. Hidacid Eosine Soda Salt

65. Hidacid Bromo Acid Regular

66. Hidacid Dibromo Fluorescein

67. Tetrabromofluorescein Soluble

68. Phloxine Red 20-7600

69. Phlox Red Toner X-1354

70. Tdq283mpcw

71. Eosine Extra Conc. A. Export

72. 11445 Red

73. 11731 Red

74. Sodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3h-xanthen-9-yl)benzoate

75. Benzoic Acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3h-xanthen-9-yl)-, Disodium Salt

76. Chebi:52053

77. Eosin Y (c.i. 45380:2)

78. Ci 45380

79. Eosin Y, 96%

80. Spiro[isobenzofuran-1(3h),9'-[9h]xanthen]-3-one,2',4',5',7'-tetrabromo-3',6'-dihydroxy-, Disodium Salt

81. Fluorescein, 2',4',5',7'-tetrabromo-, Disodium Salt

82. Eosine Yellowish-(ys)

83. Disodium Eosin

84. Eosin Gelblich

85. Morning Red

86. Dawn Red

87. Eosin Y Powder

88. Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-3h-xanthen-9-yl)benzoate

89. Eosine K

90. Eosin Ys Dye

91. Eosin A

92. Eosine Gh

93. Eosin Oj

94. Fenazo Eoxine Xg

95. Eosine Sodium Salt

96. Cerven Kysela 87

97. 2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro(isobenzofuran-1(3h),9- '-(9h)xanthen)-3-one, Disodium Salt

98. D & C Red No. 22

99. Water Red 2

100. Basacid Red 316

101. Nsc-2087

102. Orient Water Red 2

103. Mfcd00036189

104. Nsc667238

105. Japan Red 103

106. Eosine Extra Yellowish

107. Eosine S13 (bluish)

108. Bromo X 100

109. Japan Red 230-1

110. Eosin Gelblich [german]

111. Nsc 2087

112. Unii-tdq283mpcw

113. Red No. 103

114. Cerven Kysela 87 [czech]

115. Unii-1678rkx8rt

116. Eosina

117. Red No. 230-1

118. Eosin Natricum

119. Ccris 6032

120. 2,4,5,7-tetrabromofluorescein

121. Eosin Y Sodium

122. Eosin Y Ws

123. Water-soluble Eosin

124. Eosin Disodium Salt

125. Water Soluble Eosin

126. Einecs 241-409-6

127. Eosin Y Sodium Salt

128. Ci Acid Red 87

129. Disodium Eosin Frp X

130. Eosin Staining Solution

131. Eosin [iarc]

132. Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate

133. Eosin [mart.]

134. Eosin Y [mi]

135. Schembl1506

136. Eosin Y Disodium Trihydrate

137. C20h6br4o5.2na

138. Eosinum Natrum [hpus]

139. 1678rkx8rt

140. Chembl411675

141. Tetrabromofluorescein Sodium Salt

142. Eosine Disodium [who-dd]

143. Dtxsid901015574

144. Hb0758

145. Akos015903636

146. Akos016372406

147. Db13706

148. Fe01492

149. Fluorescein, 2',4',5',7'-tetrabromo-, Disodium Salt (benzoic Acid Tautomeric Form)

150. Spiro(isobenzofuran-1(3h),9'-(9h)xanthen)-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-, 2na

151. Spiro(isobenzofuran-1(3h),9'-(9h)xanthen)-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-, Disodium Salt

152. Sy066685

153. Ns00085665

154. T0037

155. D92288

156. Q1089206

157. 2′,4′,5′,7′-tetrabromofluorescein

158. Eosin Y Disodium Salt, Certified By Biological Stain Commission

159. Acid Red 87; C.i. 45380; Eosyn Y; 4?,5?-dibromofluorescein

160. Disodium;2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate

161. Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxo-4,9-dihydro-3h-xanthen-9-yl)benzoate

162. Disodium-2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate, Trihydrate

163. 125399-78-2

164. 2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro(isobenzofuran-1(3h),9-'-(9h)xanthen)-3-one, Disodium Salt

165. Benzoic Acid, 2-(2,4,5,7-tetrabromo-3,6-dihydroxy-9h-xanthen-9-yl)-, Sodium Salt (1:2)

166. Spiro(isobenzofuran-1(3h),9'-(9h)xanthen)-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-, Sodium Salt (1:2)

2.4 Create Date
2005-08-01
3 Chemical and Physical Properties
Molecular Weight 691.9 g/mol
Molecular Formula C20H6Br4Na2O5
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count1
Exact Mass Da
Monoisotopic Mass Da
Topological Polar Surface Area89.5
Heavy Atom Count31
Formal Charge0
Complexity796
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

Fluorescent Dyes

Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. (See all compounds classified as Fluorescent Dyes.)


4.2 ATC Code

D - Dermatologicals

D08 - Antiseptics and disinfectants

D08A - Antiseptics and disinfectants

D08AX - Other antiseptics and disinfectants

D08AX02 - Eosin