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Record Information
Version2.0
Created at2024-09-11 14:54:38 UTC
Updated at2024-09-11 14:54:38 UTC
NP-MRD IDNP0338323
Secondary Accession NumbersNone
Natural Product Identification
Common NameRose bengal
DescriptionRose bengal, also known as ak-rose liq 1% or c.I. 45440, Belongs to the class of organic compounds known as xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring. Its sodium salt is commonly used in eye drops to stain damaged conjunctival and corneal cells and thereby identify damage to the eye. Rose bengal is a drug. Rose bengal is a moderately basic compound (based on its pKa). Rose bengal is a food colourant; no longer FDA permitted Rose Bengal (4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein) is a stain. Rose bengal was first documented in 1987 (PMID: 2821977). Rose Bengal (4,5,6,7-tetrachloro-2',4',5',7'-tetraiodofluorescein) is a stain.
Structure
Thumb
Synonyms
ValueSource
2',4',5',7'-Tetrabromo-2,3,4,5-tetraiodofluoresceinChEBI
3,4,5,6-Tetrachloro-2',4',5',7'-tetraiodofluorescein, 8ciHMDB
4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 9ciHMDB
Ak-rose liq 1%HMDB
C.I. 45440HMDB
C.I. solvent red 141HMDB
Bengal, roseMeSH
Rose bengalMeSH
Rose bengal sodium I 125MeSH
Rose bengal sodium I 131MeSH
Chemical FormulaC20H4Cl4I4O5
Average Mass973.6730 Da
Monoisotopic Mass971.49916 Da
IUPAC Name2,3,4,5-tetrachloro-6-(6-hydroxy-2,4,5,7-tetraiodo-3-oxo-3H-xanthen-9-yl)benzoic acid
Traditional Namerose bengal
CAS Registry NumberNot Available
SMILES
OC(=O)C1=C(C(Cl)=C(Cl)C(Cl)=C1Cl)C1=C2C=C(I)C(=O)C(I)=C2OC2=C(I)C(O)=C(I)C=C12
InChI Identifier
InChI=1S/C20H4Cl4I4O5/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28/h1-2,29H,(H,31,32)
InChI KeyVDNLFJGJEQUWRB-UHFFFAOYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as xanthenes. These are polycyclic aromatic compounds containing a xanthene moiety, which consists of two benzene rings joined to each other by a pyran ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzopyrans
Sub Class1-benzopyrans
Direct ParentXanthenes
Alternative Parents
Substituents
  • Xanthene
  • 2-halobenzoic acid or derivatives
  • 3-halobenzoic acid or derivatives
  • 4-halobenzoic acid or derivatives
  • Halobenzoic acid or derivatives
  • 2-halobenzoic acid
  • 3-halobenzoic acid
  • 4-halobenzoic acid
  • Halobenzoic acid
  • Benzoic acid
  • Benzoic acid or derivatives
  • Benzoyl
  • 2-iodophenol
  • 1-carboxy-2-haloaromatic compound
  • Chlorobenzene
  • Halobenzene
  • Monocyclic benzene moiety
  • Aryl iodide
  • Aryl halide
  • Benzenoid
  • Aryl chloride
  • Vinylogous halide
  • Heteroaromatic compound
  • Cyclic ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Oxacycle
  • Organohalogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organochloride
  • Organoiodide
  • Organooxygen compound
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP6.02ALOGPS
logP9.26ChemAxon
logS-6.2ALOGPS
pKa (Strongest Acidic)2.52ChemAxon
pKa (Strongest Basic)1.81ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area83.83 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity176.05 m³·mol⁻¹ChemAxon
Polarizability63.8 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0036613
DrugBank IDDB11182
Phenol Explorer Compound IDNot Available
FoodDB IDFDB015529
KNApSAcK IDNot Available
Chemspider ID23774
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkRose bengal
METLIN IDNot Available
PubChem Compound25474
PDB IDNot Available
ChEBI ID87202
Good Scents IDNot Available
References
General References
  1. Roat MI, Romanowski E, Araullo-Cruz T, Gordon YJ: The antiviral effects of rose bengal and fluorescein. Arch Ophthalmol. 1987 Oct;105(10):1415-7. doi: 10.1001/archopht.1987.01060100117039. [PubMed:2821977 ]