Azorubine

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Structural formula
Structure of azorubine
General
Surname Azorubine
other names
  • Disodium 4-hydroxy-3 - [( E ) - (4-sulfonato-1-naphthyl) diazenyl] naphthalene-1-sulfonate ( IUPAC )
  • CI Acid Red 14
  • CI 14720
  • Chromotrope FB
  • crimson
  • E  122
Molecular formula C 20 H 12 N 2 Na 2 O 7 S 2
External identifiers / databases
CAS number 3567-69-9
EC number 222-657-4
ECHA InfoCard 100.020.598
PubChem 19118
ChemSpider 11588225
Wikidata Q409676
properties
Molar mass 502.43 g mol −1
safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315-319-335
P: 261-305 + 351 + 338
Toxicological data

> 10,000 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Azorubine (also Karmesin, E 122) is a red azo dye approved as food coloring and the disodium salt of a disulfonic acid .

Azorubin is used for beverages, confectionery and sugar confectionery , marzipan , pudding powder , jelly , canned fruit, ready-made soups, finished products, brown sauce, breadcrumbs, coloring agents for tablets and others.

Azorubine has a great chemical similarity to amaranth (E 123) and, like this substance, is suspected of acting as a trigger for pseudo-allergies .

Legal situation

Since July 21, 2010, foods containing the azo dye must be labeled in the European Union with a separate warning, the text of which reads: "May impair activity and attention in children."

Individual evidence

  1. ↑ Entry on E 122: Azorubine, Carmoisine in the European database for food additives, accessed on June 16, 2020.
  2. ↑ a b c Azorubine data sheet from Sigma-Aldrich , accessed on March 9, 2011 ( PDF ).Template: Sigma-Aldrich / name not given
  3. ↑ Reinhard Wolff: Knallbunt is unhealthy , Die Tageszeitung from July 19, 2010, p. 9.
  4. ↑ European Food Safety Authority (EFSA): Assessment of the results of the study by McCann et al. (2007) on the effect of some colors and sodium benzoate on children's behavior - Scientific Opinion of the Panel on Food Additives, Flavors, Processing Aids and Food Contact Materials (AFC). ( Memento of June 6, 2010 in the Internet Archive ) In: EFSA Journal. 6, 2008, p. 660, doi : 10.2903 / j.efsa.2008.660 .