Chemistry:Dichlorodiphenyldichloroethane

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Dichlorodiphenyldichloroethane
Skeletal formula of DDD
Ball-and-stick model of the DDD molecule
Names
IUPAC name
1-chloro-4-[2,2-dichloro-1-(4-chlorophenyl)ethyl]benzene
Preferred IUPAC name
1,1′-(2,2-dichloroethane-1,1-diyl)bis(4-chlorobenzene)
Identifiers
3D model (JSmol)
Abbreviations DDD
4-05-00-01884
ChEBI
ChEMBL
ChemSpider
EC Number
  • 200-783-0
KEGG
MeSH DDD
UNII
Properties
C14H10Cl4
Molar mass 320.03 g·mol−1
Appearance Colorless and crystalline
Density 1.476 g/cm3
Melting point 109.5 °C (229.1 °F; 382.6 K)
Boiling point 350 °C (662 °F; 623 K)
0.09 mg/L
log P 6.02 (octanol-water)
Vapor pressure 1.35×10−6 mm Hg
6.6×10−6 atm ∙ m3/mol
Atmospheric OH rate constant
4.34×10−12 cm3/molecules
Related compounds
Related compounds
DDE, DDT, mitotane, perthane
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Dichlorodiphenyldichloroethane (DDD) is an organochlorine insecticide that is slightly irritating to the skin.[1] DDD is a metabolite of DDT.[2] DDD is colorless and crystalline;[3] it is closely related chemically and is similar in properties to DDT, but it is considered to be less toxic to animals than DDT.[4] The molecular formula for DDD is (ClC6H4)2CHCHCl2 or C14H10Cl4, whereas the formula for DDT is (ClC6H4)2CHCCl3 or C14H9Cl5.

DDD is in the “Group B2” classification, meaning that it is a probable human carcinogen. This is based on an increased incidence of lung tumors in male and female mice, liver tumors in male mice, and thyroid tumors in male rats. A further basis is that DDD is similar to and is a metabolite of DDT, another probable human carcinogen.[2]

DDD is no longer registered for agricultural use in the United States , but the general population continues to be exposed to it due to its long persistence time. The primary source of exposure is oral ingestion of food.[5]

1946 is the date of the earliest recorded use in English of the abbreviation “DDD” to stand for dichlorodiphenyldichloroethane, as far as could be determined.[3]

Reductive dechlorination of DDT to form DDD

Mitotane

Mitotane.svg

If one of the p-chlorines in DDD is switched to ortho-position, the result is the chemotherapeutic agent mitotane. This is an example of a positional isomer.

Table of names

The following are synonyms for DDD:

Systematic Names Superlist Names Other Names
Benzene, 1,1'-(2,2-
dichloroethylidene)
bis(4-chloro- (9CI)
4,4'-DDD 1,1'-(2,2-Dichloroethylidene)bis
(4-chlorobenzene)
Ethane, 1,1-
dichloro-2,2-bis(p-
chlorophenyl)-
Benzene, 1,1'-(2,2-
dichloroethylidene)bis(4-chloro-
1,1-Bis(4-chlorophenyl)-2,2-
dichloroethane
TDE DDD 1,1-Bis(p-chlorophenyl)-2,2-
dichloroethane
p,p'-TDE DDD, p,p'- 1,1-Dichloor-2,2-bis(4-chloor fenyl)-ethaan (Dutch)
Dichlorodiphenyldichloroethane 1,1-Dichlor-2,2-bis(4-chlor-
phenyl)-aethan (German)
RCRA waste number U060 1,1-Dichloro-2,2-bis(4-
chlorophenyl)-ethane (French)
TDE 1,1-Dichloro-2,2-bis(4-
chlorophenyl)ethane
Tetrachlorodiphenylethane 1,1-Dichloro-2,2-bis(p-
chlorophenyl)ethane
p,p'-TDE 1,1-Dichloro-2,2-bis
(parachlorophenyl)ethane
1,1-Dichloro-2,2-di(4-
chlorophenyl)ethane
1,1-Dicloro-2,2-bis(4-cloro-fenil)-
etano (Italian)
2,2-Bis(4-chlorophenyl)-1,1-
dichloroethane
2,2-Bis(p-chlorophenyl)-1,1-
dichloroethane
4,4' DDD
4,4-DDD
4,4'-
Dichlorodiphenyldichloroethane
4-05-00-01884 (Beilstein Handbook Reference)
AI3-04225
Benzene, 1,1'-(2,2-
dichloroethylidene)bis[4-chloro-
BRN 1914072
CCRIS 573
Caswell No. 307
DDD analogue
DDD in whole water sample
Dichlorodiphenyl dichloroethane
Dichlorodiphenyldichlorethane
Dilene
EINECS 200-783-0
ENT 4,225
EPA Pesticide Chemical Code 029101
Ethane, 1,1-dichloro-2,2-bis(p-
chlorophenyl)-
HEPT
HSDB 285
ME-1700
Me-700
NCI-C00475
NSC 8941
OMS 1078
para-para DDD
para,para'-DDD
para,para'-
Dichlorodiphenyldichloroethane
p,p-DDD
p,p'-DDD
p,p'-Dichlorodiphenyl-2,2-dichloroethylene
p,p'-Dichlorodiphenyldichloroethane
Rhothane
Rhothane D-3
Rothane
Rothane WP-50

References

Notes

  1. Merck Index, 11th ed, p482
  2. 2.0 2.1 “p,p'-Dichlorodiphenyl dichloroethane (DDD) (CASRN 72-54-8).” Integrated Risk Information System. 25 Jan. 2007. United States Environmental Protection Agency. 23 Apr. 2007 <http://www.epa.gov/iris/subst/0347.htm>.
  3. 3.0 3.1 Mish, Frederick C., Editor in Chief. “DDD.” Webster’s Ninth New Collegiate Dictionary. 9th ed. Springfield, MA: Merriam-Webster Inc., 1985.
  4. Guralnik, David B., Editor in Chief. “DDD.” Webster’s New World Dictionary of the American Language. Second College Edition. New York, NY: Prentice Hall Press, 1986.
  5. “DDD.” Hazardous Substances Data Bank. United States National Library of Medicine. 25 Apr. 2007 <http://toxmap.nlm.nih.gov/toxmap/main/chemPage.jsp?chem=4,4-DICHLORODIPHENYLDICHLOROETHANE then click “Env. Fate / Exposure”>.

External links