carmoisine
Also known as Azorubin S, C.I. 14720, Azorubin, Brillantcarmoisin O, Food Red 3, Azorubine, C.I. Acid Red 14, Acid Red 14
Azorubine, also known as carmoisine, is an azo dye consisting of two naphthalene subunits. It is a red solid. It is mainly used in foods that are heat-treated after fermentation. It has E number E122.
Chemical data
- Formula
- C20H12N2Na2O7S2
- Molecular weight
- 502.4 g/mol
- IUPAC name
- disodium;4-hydroxy-3-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate
- SMILES
- C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C4=CC=CC=C4C(=C3)S(=O)(=O)[O-])O.[Na+].[Na+]
- InChIKey
- YSVBPNGJESBVRM-UHFFFAOYSA-L
- Polar surface area
- 176 Ų
- H-bond donors
- 1
- H-bond acceptors
- 9
- Formal charge
- 0
via PubChem
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Article
3 sectionsContents
- Uses
- Safety
- References
Azorubine, also known as carmoisine, is an azo dye consisting of two naphthalene subunits. It is a red solid. It is mainly used in foods that are heat-treated after fermentation. It has E number E122.
==Uses== In the US, this color was listed in 1939 as Ext. D&C Red No. 10 for use in externally applied drugs and cosmetics. It was delisted in 1963 because no party was interested in supporting the studies needed to establish safety. It was not used in food in the US.