A dioxin-like polychlorinated dibenzofuran
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1,2,3,4,7,8,9-Heptachlorodibenzofuran

Item No. 38618

Technical Information
CAS Number
55673-89-7
Synonyms
  • 1,2,3,4,7,8,9-HpCDF
  • PCDF 134
Molecular Formula
C12HCl7O
Formula Weight
Purity
≥95%
Formulation
A solid
Chloroform: Slightly soluble
SMILES
ClC1=C(Cl)C(Cl)=C2C3=C(C=C(C(Cl)=C3Cl)Cl)OC2=C1Cl
InChi Code
InChI=1S/C12HCl7O/c13-2-1-3-4(7(15)6(2)14)5-8(16)9(17)10(18)11(19)12(5)20-3/h1H
InChi Key
VEZCTZWLJYWARH-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    1,2,3,4,7,8,9-Heptachlorodibenzofuran is a dioxin-like polychlorinated dibenzofuran (PCDF).1 It induces the expression of the genes encoding the cytochrome P450 (CYP) isoforms CYP1A1 and CYP1B1, as well as the aryl hydrocarbon receptor repressor (AhRR) in primary human peripheral blood lymphocytes and increases ethoxyresorufin-O-deethylase (EROD) activity, a marker of CYP1A1 activity, in isolated human peripheral blood lymphocytes in a concentration-dependent manner. 1,2,3,4,7,8,9-Heptachlorodibenzofuran decreases the number of splenic plaque-forming cells, indicating immunosuppression, and increases hepatic microsomal aryl hydrocarbon hydroxylase (AHH) activity in mice induced with sheep red blood cells (ED50s = 12 and 700 nmol/kg, respectively).2 It has been found in human breastmilk and in the air near municipal waste incinerators.3,4

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. van Ede, K.I., Gaisch, K.P.J., van den Berg, M., et alDifferential relative effect potencies of some dioxin-like compounds in human peripheral blood lymphocytes and murine splenic cells. Toxicol. Lett. 226(1), 43-52 (2014).

    2. Dickerson, R., Howie, L., Davis, D., et alThe structure-dependent effects of heptachlorodibenzofuran isomers in male C57BL/6 mice: Immunotoxicity and monooxygenase enzyme induction. Fundam. Appl. Toxicol. 15(2), 298-307 (1990).

    3. Tawara, K., Nishijo, M., Honda, R., et alEffects of maternal dioxin exposure on newborn size at birth among Japanese mother-infant pairs. Environ. Health Prev. Med. 14(2), 88-95 (2009).

    4. Hu, S.-W., ChangChien, G.-P., and Chan, C.-C. PCDD/Fs levels in indoor environments and blood of workers of three municipal waste incinerators in Taiwan. Chemosphere 55(4), 611-620 (2004).