Record Information
Version1.0
Creation Date2016-05-22 03:55:26 UTC
Update Date2016-11-09 01:15:31 UTC
Accession NumberCHEM017089
Identification
Common NameFluorescein sodium
ClassSmall Molecule
DescriptionFluorescein is a manufactured organic compound and dye. It is available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications. Fluorescein is a fluorophore commonly used in microscopy, in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains, and in dye tracing. Fluorescein has an absorption maximum at 494 nm and emission maximum of 512 nm (in water). The major derivatives are fluorescein isothiocyanate (FITC) and, in oligonucleotide synthesis, 6-FAM phosphoramidite. The color of its aqueous solution varies from green to orange as a function of the way it is observed: by reflection or by transmission, as can be noticed in bubble levels, for example, in which fluorescein is added as a colorant to the alcohol filling the tube in order to increase the visibility of the air bubble contained within (thus enhancing the precision of the instrument). More concentrated solutions of fluorescein can even appear red. It is on the World Health Organization's List of Essential Medicines, the most important medications needed in a basic health system.
Contaminant Sources
  • ToxCast & Tox21 Chemicals
Contaminant TypeNot Available
Chemical Structure
Thumb
Synonyms
ValueSource
FluoresceinMeSH
DiofluorMeSH
FundusceinMeSH
Ful gloMeSH
FluoresciteMeSH
Disodium fluoresceinMeSH
Fluoresceine, minimsMeSH
Sodium, fluoresceinMeSH
D And C yellow no. 7MeSH
Fluorescein disodium saltMeSH
Fluor I strip a.t.MeSH
Monosodium salt, fluoresceinMeSH
D And C yellow no. 8MeSH
Fluorescein, disodiumMeSH
Fluoresceina, colircusiMeSH
Sodium fluoresceinMeSH
Fluorescein sodiumMeSH
Minims fluoresceineMeSH
Fluorescéine sodique faureMeSH
Ful-gloMeSH
Minims fluorescein sodiumMeSH
Fluorescein sodium, minimsMeSH
Optifluor dibaMeSH
Fluorescein, sodiumMeSH
FluoretsMeSH
Fluorescein monosodium saltMeSH
Disodium salt, fluoresceinMeSH
Fluorescein dipotassium saltMeSH
Colircusi fluoresceinaMeSH
Fluor-I-strip a.t.MeSH
Minims stainsMeSH
Dipotassium salt, fluoresceinMeSH
UranineMeSH
Disodium 3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-bis(olic acid)Generator
Chemical FormulaC20H10Na2O5
Average Molecular Mass376.270 g/mol
Monoisotopic Mass376.032 g/mol
CAS Registry Number518-47-8
IUPAC Namedisodium 3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-bis(olate)
Traditional Namedisodium 3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-bis(olate)
SMILES[Na+].[Na+].[O-]C1=CC2=C(C=C1)C1(OC(=O)C3=CC=CC=C13)C1=C(O2)C=C([O-])C=C1
InChI IdentifierInChI=1S/C20H12O5.2Na/c21-11-5-7-15-17(9-11)24-18-10-12(22)6-8-16(18)20(15)14-4-2-1-3-13(14)19(23)25-20;;/h1-10,21-22H;;/q;2*+1/p-2
InChI KeyRGPLGPBQJOQFJS-UHFFFAOYSA-L
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
  • Diaryl ether
  • Benzofuranone
  • Isobenzofuranone
  • Phthalide
  • Isocoumaran
  • Isobenzofuran
  • Phenoxide
  • Benzenoid
  • Carboxylic acid ester
  • Lactone
  • Carboxylic acid derivative
  • Oxacycle
  • Organic alkali metal salt
  • Ether
  • Monocarboxylic acid or derivatives
  • Organic oxygen compound
  • Organooxygen compound
  • Organic zwitterion
  • Organic salt
  • Organic sodium salt
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic 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 Solubility0.015 g/LALOGPS
logP3.88ALOGPS
logP3.88ChemAxon
logS-4.4ALOGPS
pKa (Strongest Acidic)8.72ChemAxon
pKa (Strongest Basic)-6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area81.65 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity112.32 m³·mol⁻¹ChemAxon
Polarizability32.21 ųChemAxon
Number of Rings5ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0009000000-befb723e4011008a66adSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-0009000000-f863626554c639f367dbSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00b9-7009000000-00c25a8351dfd514ea9fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0009000000-5c251e5b37a39b4dc1a7Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-0009000000-5c251e5b37a39b4dc1a7Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-0009000000-5c251e5b37a39b4dc1a7Spectrum
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 IDDBSALT000660
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkFluorescein
Chemspider IDNot Available
ChEBI IDNot Available
PubChem Compound ID9885981
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available