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Indigo carmine

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Indigo carmine

Molecular formula: C16H8N2Na2O8S2 CAS# 860-22-0
11.413 pH
Names
English:
1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, sodium salt, (2E)- (1:2)(CAS)
1H-indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt, (2E)-
4 G
5,5′-indigodisulfonic acid sodium salt
Brilliant Indigo
C Blue 2
C.I. 73015
C.I. Acid Blue 74
Disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1,3-dihydro-2H-indol-2-ylidene)-5-indolinesulfonate(IUPAC)
Disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1,3-dihydro-2H-indol-2-ylidene)indoline-5-sulfonate
Disodium 5,5'-indigotin disulfonate
E 132
E132
EINECS:212-728-8
FD & C blue no. 2
Food Blue 1
Food Blue 2
Food Blue No. 2
Indigo carmine [Wiki]
Indigo-5,5'-disulfonic acid disodium salt
Indigo-5,5′-disulfonic acid disodium salt
Indigotindisulfonate Sodium
Sicovit Indigotin 85
disodium (2E)-3-oxo-2-(3-oxo-5-sulfonato-1,3-dihydro-2H-indol-2-ylidene)-2,3-dihydro-1H-indole-5-sulfonate
indigotine
Русский:
Индигокармин [Wiki]
динатриевая соль индиго-5,5'-дисульфокислоты
индиготин
French:
(2E)-3-Oxo-2-(3-oxo-5-sulfonato-1,3-dihydro-2H-indol-2-ylidène)-5-indolinesulfonate de disodium(IUPAC)
5,5'-indigosulfonate de disodium
Carmin d'indigo [Wiki]
German:
Acid Blue 74
C.I. 73015
Dinatrium-(2E)-3-oxo-2-(3-oxo-5-sulfonato-1,3-dihydro-2H-indol-2-yliden)-5-indolinsulfonat(IUPAC)
E 132
Indigocarmin
Indigokarmin [Wiki]
Indigotin I
Indigotin-5,5′-disulfonsäure Dinatriumsalz
Español:
3,3-dioxo-2,2-bi-indolilideno-5,5-disulfonato disódico
Azul ácido 74
Carmín de índigo [Wiki]
Indigotinsulfonato
indigotina
日本語:
インジゴカルミン [Wiki]
Português:
5,5'-indigodisulfonic acid sodium salt
Carmim de índigo
Índigo-carmim [Wiki]
中文:
5,5′-靛蓝二黄色钠
C.I.酸性蓝74
亮靛蓝4G
靛蓝胭脂红 [Wiki]

Variants of the formula:

Na^+_(x1,y1,N0)O`^-/S<_(A110,N2)O>`|O|\||\//`|<`\\`/>_p<_(a-54,N2)O:a>_p<_pN<_(a-54)H:b>_p>=_(a54)<_(a54,N2)O-h#b>_q_qq<_qN<_q>_(a54)H-h#a>/\\|<`//`\>\S<_(A-70,N2)O>|O`|/O^-_(x1,y1,N0)Na^+
Na^+_(x1.5,N0)O`^-\S<_qq4O><_pp4O>\||\//`|<`\\`/>_p<_(a-54,N2)O>_p<_pN<_(y.5)H>_p>=_(a54)<_(a54,N2)O>_q_q<_qN<_(y-.5)H>_q>//\||<`/`\\>\S<_qq4O><_pp4O>\O^-_(x1.2,N0)Na^+
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent