Record Information
Version1.0
Creation Date2016-05-25 23:51:11 UTC
Update Date2016-11-09 01:18:29 UTC
Accession NumberCHEM027611
Identification
Common NameC.I. Food Black 2
ClassSmall Molecule
DescriptionBlack food dye; no longer permitted in the EU and not FDA approved.
Contaminant Sources
  • FooDB Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
Synonyms
ValueSource
6-amino-4-Hydroxy-3-[(7-sulfO-4-[(4-sulfophenyl)azo]-1-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid, 9ciHMDB
Black 7984HMDB
C.I. 27755HMDB
C.I. 27775HMDB
e 152HMDB
FOOD Black 2HMDB
6-Amino-4-hydroxy-3-[(e)-2-{7-sulfO-4-[(e)-2-(4-sulfophenyl)diazen-1-yl]naphthalen-1-yl}diazen-1-yl]naphthalene-2,7-disulfonateGenerator
6-Amino-4-hydroxy-3-[(e)-2-{7-sulphO-4-[(e)-2-(4-sulphophenyl)diazen-1-yl]naphthalen-1-yl}diazen-1-yl]naphthalene-2,7-disulphonateGenerator
6-Amino-4-hydroxy-3-[(e)-2-{7-sulphO-4-[(e)-2-(4-sulphophenyl)diazen-1-yl]naphthalen-1-yl}diazen-1-yl]naphthalene-2,7-disulphonic acidGenerator
Chemical FormulaC26H19N5O13S4
Average Molecular Mass737.715 g/mol
Monoisotopic Mass736.986 g/mol
CAS Registry Number25738-38-9
IUPAC Name6-amino-4-hydroxy-3-[(E)-2-{7-sulfo-4-[(E)-2-(4-sulfophenyl)diazen-1-yl]naphthalen-1-yl}diazen-1-yl]naphthalene-2,7-disulfonic acid
Traditional Name6-amino-4-hydroxy-3-[(E)-2-{7-sulfo-4-[(E)-2-(4-sulfophenyl)diazen-1-yl]naphthalen-1-yl}diazen-1-yl]naphthalene-2,7-disulfonic acid
SMILESNC1=C(C=C2C=C(C(\N=N\C3=CC=C(\N=N\C4=CC=C(C=C4)S(O)(=O)=O)C4=C3C=C(C=C4)S(O)(=O)=O)=C(O)C2=C1)S(O)(=O)=O)S(O)(=O)=O
InChI IdentifierInChI=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+
InChI KeyDUUHLAZWLLCPSP-DUJDKOHPSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as 2-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 2-position. Naphthalene is a bicyclic compound that is made up of two fused benzene ring.
KingdomOrganic compounds
Super ClassBenzenoids
ClassNaphthalenes
Sub ClassNaphthalene sulfonic acids and derivatives
Direct Parent2-naphthalene sulfonates
Alternative Parents
Substituents
  • 2-naphthalene sulfonate
  • 2-naphthalene sulfonic acid or derivatives
  • 1-naphthol
  • Benzenesulfonate
  • Arylsulfonic acid or derivatives
  • Benzenesulfonyl group
  • 1-sulfo,2-unsubstituted aromatic compound
  • 1-hydroxy-4-unsubstituted benzenoid
  • Monocyclic benzene moiety
  • 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
  • Primary amine
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Amine
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginNot Available
Cellular LocationsNot Available
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateNot Available
AppearanceNot Available
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.018 g/LALOGPS
logP-0.75ALOGPS
logP-2.2ChemAxon
logS-4.6ALOGPS
pKa (Strongest Acidic)-4.8ChemAxon
pKa (Strongest Basic)1.66ChemAxon
Physiological Charge-4ChemAxon
Hydrogen Acceptor Count18ChemAxon
Hydrogen Donor Count6ChemAxon
Polar Surface Area313.17 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity176.77 m³·mol⁻¹ChemAxon
Polarizability69.79 ųChemAxon
Number of Rings5ChemAxon
Bioavailability0ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0ab9-0420219200-7b6e32d0d6be477897d3Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_4) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_5) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_6) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_3) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_4) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_5) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_6) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0670-0000014900-70b96f67b4bf7063cad2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a6r-0000049100-2451cbe98521397e3230Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-004i-0010291000-e8c5029b97847e38901dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0100104900-d0b7379f16a983bf4c5bSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-05n0-1211539200-166cf6cd22dba4fbcebeSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-053i-4903311000-11de868790940e3eb292Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0000000900-45d188b3e17a7d56f97cSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0500202900-2b73f59f3828f1a7af25Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00di-3300091000-a01df2f82b224f649726Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0000000900-2f7461c2f7287ffd1525Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-0012749500-160c21a2ed73d1f40cf2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fi9-0163092000-5e38fe4d3d7d2204ede8Spectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Not Available
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0033393
FooDB IDFDB011426
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID14306907
ChEBI IDNot Available
PubChem Compound IDNot Available
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.