Black 7984: Difference between revisions

Black 7984^[1]
Names
	IUPAC name Tetrasodium 6-amino-4-hydroxy-3-[[7-sulfonato-4-[(4-sulfonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulfonate
	Other names Food Black 2; C.I. 27755;
Identifiers
CAS Number	2118-39-0 ; acid: 25738-38-9;
3D model (JSmol)	Interactive image; acid: Interactive image;
ChemSpider	acid: 14306907;
ECHA InfoCard	100.016.661
EC Number	218-326-9;
PubChem CID	14047491;
CompTox Dashboard (EPA)	DTXSID40879792 ;
	InChI InChI=1S/C26H19N5O13S4.4Na/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35;;;;/h1-12,30H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44);;;;/q;4*+1/p-4/b29-28?,31-25-;;;; Key: XAOPCPOUYMCJFA-PEEPPZCGSA-J; acid: InChI=1S/C26H19N5O13S4/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35/h1-12,32H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44)/b29-28+,31-30+ Key: DUUHLAZWLLCPSP-DUJDKOHPSA-N;
	SMILES [O-]S(C(C=C4)=CC=C4/N=N/C(C=C2)=C3C(C=C(S([O-])(=O)=O)C=C3)=C2/N=N/C1=C(S([O-])(=O)=O)C=C(C=C(S([O-])(=O)=O)C(N)=C5)C5=C1O)(=O)=O.[Na+].[Na+].[Na+].[Na+]; acid: Nc1cc2c(O)c(/N=N/c3ccc(/N=N/c4ccc(S(=O)(=O)O)cc4)c4ccc(S(=O)(=O)O)cc34)c(S(=O)(=O)O)cc2cc1S(=O)(=O)O;
Properties
Chemical formula	C26H15N5Na4O13S4
Molar mass	825.63 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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Latest revision as of 04:35, 22 November 2024

Black 7984, Food Black 2, or C.I. 27755, is a brown-to-black synthetic diazo dye. It is often used as the tetrasodium salt.

When used as a food dye, it has E number E152. Its use in food has not been permitted in the United States and in the European Union since 1984.^{[citation needed]} It is also not permitted in Australia and Japan.^{[citation needed]}

Black 7984 is also used in cosmetics.

References

^ European chemical Substances Information System^{[permanent dead link‍]}

[1] European chemical Substances Information System^{[permanent dead link‍]}

[1]

@@ Line 1: / Line 1: @@
 {{chembox
+| Watchedfields = changed
 | verifiedrevid = 420398825
-| Reference = <ref>[http://ecb.jrc.it/esis/index.php?GENRE=ECNO&ENTREE=218-326-9 European chemical Substances Information System]</ref>
+| Reference = <ref>[http://ecb.jrc.it/esis/index.php?GENRE=ECNO&ENTREE=218-326-9 European chemical Substances Information System]{{dead link|date=November 2016 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
 | ImageFile = Black 7984.png
 | ImageSize = 250px
 | IUPACName = Tetrasodium 6-amino-4-hydroxy-3-<nowiki>[[</nowiki>7-sulfonato-4-[(4-sulfonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulfonate
-| OtherNames = Food Black 2<br>C.I. 27755
+| OtherNames = {{Unbulleted list
+  | Food Black 2
-| Section1 = {{Chembox Identifiers
+  | C.I. 27755
+  }}
+|Section1={{Chembox Identifiers
 | CASNo_Ref = {{cascite|correct|??}}
 | CASNo = 2118-39-0
+| CASNo1 = 25738-38-9
+| index1_label = acid
+| ChemSpiderID1 = 14306907
 | EINECS = 218-326-9
-| PubChem =
+| PubChem = 14047491
+| StdInChI=1S/C26H19N5O13S4.4Na/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35;;;;/h1-12,30H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44);;;;/q;4*+1/p-4/b29-28?,31-25-;;;;
-| SMILES = [O-]S(C(C=C4)=CC=C4/N=N/C(C=C2)=C3C(C=C(S([O-])(=O)=O)C=C3)=C2/N=N/C1=C(S([O-])(=O)=O)C=C(C=C(S([O-])(=O)=O)C(N)=C5)C5=C1O)(=O)=O.[Na+].[Na+].[Na+].[Na+]}}
+| StdInChIKey = XAOPCPOUYMCJFA-PEEPPZCGSA-J
-| Section2 = {{Chembox Properties
+| SMILES = [O-]S(C(C=C4)=CC=C4/N=N/C(C=C2)=C3C(C=C(S([O-])(=O)=O)C=C3)=C2/N=N/C1=C(S([O-])(=O)=O)C=C(C=C(S([O-])(=O)=O)C(N)=C5)C5=C1O)(=O)=O.[Na+].[Na+].[Na+].[Na+]
-| Formula = C<sub>26</sub>H<sub>19</sub>N<sub>5</sub>Na<sub>4</sub>O<sub>13</sub>S<sub>4</sub>
+| SMILES1 = Nc1cc2c(O)c(/N=N/c3ccc(/N=N/c4ccc(S(=O)(=O)O)cc4)c4ccc(S(=O)(=O)O)cc34)c(S(=O)(=O)O)cc2cc1S(=O)(=O)O
-| MolarMass = 733.69 g/mol
+| InChI1=1S/C26H19N5O13S4/c27-20-12-18-13(9-23(20)47(39,40)41)10-24(48(42,43)44)25(26(18)32)31-30-22-8-7-21(17-6-5-16(11-19(17)22)46(36,37)38)29-28-14-1-3-15(4-2-14)45(33,34)35/h1-12,32H,27H2,(H,33,34,35)(H,36,37,38)(H,39,40,41)(H,42,43,44)/b29-28+,31-30+
+| InChIKey1=DUUHLAZWLLCPSP-DUJDKOHPSA-N
+ }}
+|Section2={{Chembox Properties
+| C=26 | H=15 | N=5 | Na=4 | O=13 | S=4
 | Appearance =
 | Density =
@@ Line 20: / Line 32: @@
 | BoilingPt =
 | Solubility = }}
-| Section3 = {{Chembox Hazards
+|Section3={{Chembox Hazards
 | MainHazards =
 | FlashPt =
-| Autoignition = }}
+| AutoignitionPt = }}
 }}
 '''Black 7984''', '''Food Black 2''', or '''C.I. 27755''', is a brown-to-black synthetic [[diazo dye]]. It is often used as the tetrasodium [[salt (chemistry)|salt]].
-When used as a [[food dye]], it has [[E number]] E152. Its use in food is discontinued in USA and EU since 1984.<!-- http://devlamindepan.nl/e-nummers/100-199/bw152.htm -->  It is also not permitted in [[Australia]] and [[Japan]].
+When used as a [[food dye]], it has [[E number]] E152. Its use in food has not been permitted in the United States and in the European Union since 1984.{{cn|date=September 2018}} It is also not permitted in [[Australia]] and [[Japan]].{{cn|date=September 2018}}
 Black 7984 is also used in [[cosmetics]].
-Black 7984 may cause [[allergic]] or intolerance reactions, particularly amongst those with an [[aspirin]] intolerance.{{Fact|date=September 2008}} It is a [[histamine]] liberator, and may worsen the symptoms of [[asthma]].{{Fact|date=September 2008}}
-It is one of the colorants that the [[Hyperactive Children's Support Group]] recommends be eliminated from the diet of children.{{Fact|date=September 2008}}
 ==See also==
@@ Line 43: / Line 52: @@
 [[Category:Azo dyes]]
 [[Category:Food colorings]]
+[[Category:Acid dyes]]