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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:33:04 UTC
Update Date2022-03-07 02:52:19 UTC
HMDB IDHMDB0029855
Secondary Accession Numbers
  • HMDB29855
Metabolite Identification
Common NameCochineal Red A
DescriptionCochineal Red A is a synthetic food colouring. Because it is an azo dye, it may elicit intolerance in people allergic to salicylates (aspirin). Additionally, it is a histamine liberator, and may intensify symptoms of asthma. Ponceau 4R (also known as Food Red 7[citation needed], C.I. 16255[citation needed], Cochineal Red A[citation needed], New Coccine, Acid Red 18, SX purple[citation needed]) is a synthetic colourant that may be added to foods to induce a colour change. It is denoted by E Number E124, and has the capacity for inducing an allergic reaction. Its chemical name is trisodium salt of 1-(4-sulpho-1-napthylazo)- 2-napthol- 6,8-disulphonic acid. Ponceau 4R is a red azo dye usually synthesized from coal tar which can be used in a variety of food products
Structure
Data?1582753475
Synonyms
Chemical FormulaC20H14N2O10S3
Average Molecular Weight538.528
Monoisotopic Molecular Weight537.981056748
IUPAC Name7-hydroxy-8-[(E)-2-(4-sulfonaphthalen-1-yl)diazen-1-yl]naphthalene-1,3-disulfonic acid
Traditional Name7-hydroxy-8-[(E)-2-(4-sulfonaphthalen-1-yl)diazen-1-yl]naphthalene-1,3-disulfonic acid
CAS Registry Number7244-14-6
SMILES
OC1=C(\N=N\C2=CC=C(C3=CC=CC=C23)S(O)(=O)=O)C2=C(C=C(C=C2C=C1)S(O)(=O)=O)S(O)(=O)=O
InChI Identifier
InChI=1S/C20H14N2O10S3/c23-16-7-5-11-9-12(33(24,25)26)10-18(35(30,31)32)19(11)20(16)22-21-15-6-8-17(34(27,28)29)14-4-2-1-3-13(14)15/h1-10,23H,(H,24,25,26)(H,27,28,29)(H,30,31,32)/b22-21+
InChI KeyJZGWEIPJUAIDHM-QURGRASLSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 1,1'-azonaphthalenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to the 1-position of a naphthalene ring system. Naphthalene is a compound made up of two fused benzene rings.
KingdomOrganic compounds
Super ClassBenzenoids
ClassNaphthalenes
Sub Class1,1'-azonaphthalenes
Direct Parent1,1'-azonaphthalenes
Alternative Parents
Substituents
  • 1,1'-azonaphthalene
  • 2-naphthalene sulfonate
  • 1-naphthalene sulfonate
  • Naphthalene sulfonic acid or derivatives
  • 2-naphthalene sulfonic acid or derivatives
  • 1-naphthalene sulfonic acid or derivatives
  • Naphthalene sulfonate
  • 2-naphthol
  • Arylsulfonic acid or derivatives
  • 1-sulfo,2-unsubstituted aromatic compound
  • 1-hydroxy-2-unsubstituted benzenoid
  • Organic sulfonic acid or derivatives
  • Organosulfonic acid or derivatives
  • Organosulfonic acid
  • Sulfonyl
  • Azo compound
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB001076
KNApSAcK IDNot Available
Chemspider ID10807381
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkPonceau 4R
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .