Record Information
Version1.0
Creation Date2009-03-06 18:58:10 UTC
Update Date2026-04-06 11:53:32 UTC
Accession NumberCHEM000141
Identification
Common NameHexachlorodibenzo-p-dioxin
ClassSmall Molecule
DescriptionHexachlorodibenzo-p-dioxins are chlorinated dibenzo-p-dioxin (CDD) congeners. CDDs are a class of manufactured chemicals that consist of dioxin skeletel structures with chlorine substituents. They are also persistent organic pollutants (POPs), thus their production is regulated in most areas. Dioxins occur as by-products from the manufacture of organochlorides, the bleaching of paper, chlorination by waste and drinking water treatment plants, municipal solid waste and industrial incinerators, and natural sources such as volcanoes and forest fires. (3, 4)
Contaminant Sources
  • T3DB toxins
Contaminant Type
  • Aromatic Hydrocarbon
  • Chlorinated Dibenzo-p-dioxin
  • Ester
  • Ether
  • Industrial By-product/Pollutant
  • Industrial/Workplace Toxin
  • Organic Compound
  • Organochloride
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
Octanoic acid {3S-[3alpha,3abeta,4alpha,6beta,6abeta,7beta,8alpha(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterChEBI
TgChEBI
ThapsigargineChEBI
Octanoate {3S-[3a,3abeta,4a,6b,6abeta,7b,8a(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterGenerator
Octanoate {3S-[3alpha,3abeta,4alpha,6beta,6abeta,7beta,8alpha(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterGenerator
Octanoate {3S-[3α,3abeta,4α,6β,6abeta,7β,8α(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterGenerator
Octanoic acid {3S-[3a,3abeta,4a,6b,6abeta,7b,8a(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterGenerator
Octanoic acid {3S-[3α,3abeta,4α,6β,6abeta,7β,8α(Z),9balpha]}-6-(acetoxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-[(2-methyl-1-oxo-2-butenyl)oxy]-2-oxo-4-(1-oxobutoxy)-azuleno[4,5-b]furan-7-yl esterGenerator
Chemical FormulaC34H50O12
Average Molecular Mass650.754 g/mol
Monoisotopic Mass650.330 g/mol
CAS Registry Number34465-46-8
IUPAC NameNot Available
Traditional Namethapsigargin
SMILESCCCCCCCC(=O)O[C@@H]1[C@@H](OC(=O)C(\C)=C/C)C(C)=C2[C@@H]3OC(=O)[C@@](C)(O)[C@@]3(O)[C@H](C[C@](C)(OC(C)=O)[C@@H]12)OC(=O)CCC
InChI IdentifierInChI=1S/C34H50O12/c1-9-12-13-14-15-17-24(37)43-28-26-25(20(5)27(28)44-30(38)19(4)11-3)29-34(41,33(8,40)31(39)45-29)22(42-23(36)16-10-2)18-32(26,7)46-21(6)35/h11,22,26-29,40-41H,9-10,12-18H2,1-8H3/b19-11-/t22-,26+,27-,28-,29-,32-,33+,34+/m0/s1
InChI KeyIXFPJGBNCFXKPI-FSIHEZPISA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pentacarboxylic acids and derivatives. These are carboxylic acids containing exactly five carboxyl groups.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassPentacarboxylic acids and derivatives
Direct ParentPentacarboxylic acids and derivatives
Alternative Parents
Substituents
  • Pentacarboxylic acid or derivatives
  • Fatty acid ester
  • Gamma butyrolactone
  • Fatty acyl
  • Cyclic alcohol
  • Tertiary alcohol
  • Tetrahydrofuran
  • Enoate ester
  • Alpha,beta-unsaturated carboxylic ester
  • Lactone
  • 1,2-diol
  • Carboxylic acid ester
  • Organoheterocyclic compound
  • Oxacycle
  • Alcohol
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Aliphatic heteropolycyclic compound
Molecular FrameworkAliphatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological Roles
Chemical Roles
Physical Properties
StateSolid
AppearanceColorless solid.
Experimental Properties
PropertyValue
Melting Point250°C
Boiling PointNot Available
Solubility4e-09 mg/mL at 20 °C [FISCHER,J et al. (1992)]
Predicted Properties
PropertyValueSource
Water Solubility0.0053 g/LALOGPS
logP4.07ALOGPS
logP4.38ChemAxon
logS-5.1ALOGPS
pKa (Strongest Acidic)11.14ChemAxon
pKa (Strongest Basic)-4.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area171.96 ŲChemAxon
Rotatable Bond Count17ChemAxon
Refractivity163.82 m³·mol⁻¹ChemAxon
Polarizability70.88 ųChemAxon
Number of Rings3ChemAxon
Bioavailability0ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0ff0-6300097000-c9d45cac83789d361b32Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00ai-9210251000-c0f40b63fc15299b3382Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0543-9000330000-4fd593564aa3c6d6a629Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-7300069000-52d1f3f258f5a1fe5038Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a6r-9200263000-6afef68240dc6daf6e01Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-05mp-9200220000-e44ed9918f70fe718e40Spectrum
Toxicity Profile
Route of ExposureOral (3) ; inhalation (3) ; dermal (3)
Mechanism of ToxicityCDDs cause their toxic effects by binding to the aryl hydrocarbon receptor and subsequently altering the transcription of certain genes. The affinity for the Ah receptor depends on the structure of the specific CDD. The change in gene expression may result from the direct interaction of the Ah receptor and its heterodimer-forming partner, the aryl hydrocarbon receptor nuclear translocator, with gene regulatory elements or the initiation of a phosphorylation/dephosphorylation cascade that subsequently activates other transcription factors. The affected genes include several oncogenes, growth factors, receptors, hormones, and drug-metabolizing enzymes. The change in transcription/translation of these genes is believed to be the cause of most of the toxic effects of CDDs. (3)
MetabolismCDDs are absorbed through oral, inhalation, and dermal routes of exposure. CDDs are carried in the plasma by serum lipids and lipoproteins, distributing mainly to the liver and adipose tissue. CDDs are very slowly metabolized by the microsomal monooxygenase system to polar metabolites that can undergo conjugation with glucuronic acid and glutathione. They may increase the rate of their own metabolism by inducing both phase I and phase II enzymes. The major routes of excretion of CDDs are the bile and the faeces, though smaller amounts are excreted in the urine and via lactation. (3)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)3, not classifiable as to its carcinogenicity to humans. (2)
Uses/SourcesDioxins occur as by-products from the manufacture of organochlorides, the bleaching of paper, chlorination by waste and drinking water treatment plants, municipal solid waste and industrial incinerators, and natural sources such as volcanoes and forest fires. (3, 4)
Minimum Risk LevelAcute Oral: 0.0002 ug/kg/day (1) Intermediate Oral: 0.00002 ug/kg/day (1) Chronic Oral: 0.000001 ug/kg/day (1)
Health EffectsExposure to large amounts of CDDs causes chloracne, a severe skin disease with acne-like lesions that occur mainly on the face and upper body. CDDs may also cause liver damage and induce long-term alterations in glucose metabolism and subtle changes in hormonal levels. In addition, studies have shown that CDDs may disrupt the endocrine system and weaken the immune system, as well as cause reproductive damage and birth defects, central and peripheral nervous system pathology, thyroid disorders, endometriosis, and diabetes. (3, 4)
SymptomsIn addition to chloracne, CDD exposure causes skin rashes, discoloration, and excessive body hair. (3)
TreatmentTreatment of CDD exposure may include washing the area of contact, GI decontamination, administering an IV, or forced alkaline diuresis. (5)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDC00003375
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkThapsigargin
Chemspider IDNot Available
ChEBI ID9516
PubChem Compound ID446378
Kegg Compound IDC09561
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=10477042
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=12410314
3. https://www.ncbi.nlm.nih.gov/pubmed/?term=16874404
4. https://www.ncbi.nlm.nih.gov/pubmed/?term=17825049
5. https://www.ncbi.nlm.nih.gov/pubmed/?term=20357004
6. https://www.ncbi.nlm.nih.gov/pubmed/?term=24598360
7. https://www.ncbi.nlm.nih.gov/pubmed/?term=9014219