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4,4'-DDE

4,4'-DDE Structure
4,4'-DDE
  • CAS No.72-55-9
  • Chemical Name:4,4'-DDE
  • CBNumber:CB9776968
  • Molecular Formula:C14H8Cl4
  • Formula Weight:318.03
  • MOL File:72-55-9.mol
4,4'-DDE Property
  • Melting point: :88-90 °C(lit.)
  • Boiling point: :403.45°C (rough estimate)
  • Density  :1.3406 (rough estimate)
  • vapor pressure  :13 at 30 °C (Wescott et al., 1981)
  • refractive index  :1.6000 (estimate)
  • Flash point: :11 °C
  • storage temp.  :2-8°C
  • solubility  :ethanol: soluble
  • form  :neat
  • color  :White, crystalline, odorless powder
  • Water Solubility  :292mg/L(25 ºC)
  • BRN  :1913355
  • Henry's Law Constant :0.33 at 25 °C (gas stripping-GC, Jantunen and Bidleman, 2006)
  • Stability: :Stable, but light-sensitive. Incompatible with strong bases, strong oxidizing agents.
  • EWG's Food Scores :3
  • EPA Substance Registry System :p,p'-DDE (72-55-9)
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements H350-H304-H315-H336-H410-H225-H301+H311+H331-H370-H411-H302-H351
  • Precautionary statements P201-P202-P264-P270-P301+P312+P330-P308+P313-P391-P405-P261-P273-P301+P310-P331-P501-P210-P260-P280-P311-P281
4,4'-DDE Price More Price(10)
  • Brand: Sigma-Aldrich
  • Product number: 123897
  • Product name : 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene
  • Purity: 99%
  • Packaging: 1g
  • Price: $47.6
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 35487
  • Product name : 4,4′-DDE
  • Purity: PESTANAL , analytical standard
  • Packaging: 100mg
  • Price: $58.3
  • Updated: 2020/08/18
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: B0133
  • Product name : 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene
  • Purity: >99.0%(GC)
  • Packaging: 1g
  • Price: $51
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: TCI Chemical
  • Product number: B0133
  • Product name : 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene
  • Purity: >99.0%(GC)
  • Packaging: 5g
  • Price: $153
  • Updated: 2021/03/22
  • Buy: Buy
  • Brand: Sigma-Aldrich
  • Product number: 43537
  • Product name : 4,4′-DDE
  • Purity: certified reference material, TraceCERT
  • Packaging: 50mg
  • Price: $199
  • Updated: 2020/08/18
  • Buy: Buy

4,4'-DDE Chemical Properties,Usage,Production

  • Chemical Properties white crystalline powder
  • Uses Military product; chemical research. Degradation product of p,p′-DDT.
  • Definition ChEBI: A chlorophenylethylene that is ethylene substituted by two 4-chlorophenyl groups at position 1 and two chlorine atoms at position 2.
  • General Description White crystalline solid or white powder.
  • Air & Water Reactions Insoluble in water.
  • Reactivity Profile 4,4'-DDE is sensitive to exposure to light. 4,4'-DDE is incompatible with strong oxidizing agents and strong bases. Oxidation is catalyzed by UV radiation.
  • Health Hazard A derivative of DDT; structurally and toxicproperties are similar to those of DDT;however, the acute effects are somewhatmilder; moderately toxic by ingestion; ateratogenic substance; adequate evidence ofcarcinogenicity in experimental animals
    LD50 oral (rat): 880 mg/kg
    LD50 oral (mouse): 700 mg/kg.
  • Fire Hazard Flash point data for 4,4'-DDE are not available. 4,4'-DDE is probably combustible.
  • Safety Profile Suspected carcinogen withexperimental carcinogenic and neoplastigenic data. Poisonby ingestion. Experimental reproductive effects. Mutationdata reported. An insecticide. When heated todecomposition it emits very toxic fumes of Cl-.
  • Source Agricultural runoff degradation of p,p′-DDT (quoted, Verschueren, 1983).
  • Environmental Fate Biological. In four successive 7-day incubation periods, p,p′-DDE (5 and 10 mg/L) was recalcitrant to degradation in a settled domestic wastewater inoculum (Tabak et al.,1981).
    Photolytic. When an aqueous solution of p,p′-DDE (0.004uM) in natural water samples collected from California and Hawaii was irradiated (maximum λ= 240 nm) for 120 hours, 62% was photooxidized to p,p′-dichlorobenzophenone (Ross and Crosby, 1985).
    When p,p′-DDE in water was irradiated at 313 nm, a quantum yield of 0.3 was achieved. A photolysis half-life of 0.9 days in summer and 6.1 days in winter by direct sunlight at 40° latitude was observed. Photolysis products included DDMU (yield 20%), o-chl
    When p,p′-DDE in a methanol solvent was photolyzed at 260 nm, a dichloro-benzophenone, a dichlorobiphenyl, DDMU and 3,6-dichlorofluorenone (yield 10%) formed as the major products (Plimmer et al., 1970). Chemical/Physical. May degrade to bis(chlorophenyl)acetic acid (DDA) and hydrochloric acid in water (Verschueren, 1983) or oxidize to p,p′-dichlorobenzophenone using UV light as a catalyst (U.S. Department of Health and Human Services, 1989).
  • Purification Methods Crystallise DDE from MeOH or EtOH and dry it in vacuo. The purity is checked by TLC. [G.tzi & Stammbach Helv Chim Acta 28 569 1946, Beilstein 5 H 639, 5 III1891.] POSSIBLE CARCINOGEN.
4,4'-DDE Preparation Products And Raw materials
Raw materials
Preparation Products
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72-55-9, 4,4'-DDERelated Search:
  • PARAPARADDE
  • PARAPARADICHLORODIPHENYLDICHLOROETHYLENE
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene, 4,4μ-DDE
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene solution, 4,4μ-DDE solution
  • 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene,99%
  • 1,1-dichloro-2,2-bis(4-chorophenyl)ethylene
  • p, p’-DDE Standard
  • p.p'-DDE 100mg [72-55-9]
  • 4,4'-DDEe
  • Benzene, 1,1'-(dichloroethenylidene)bis*4-chloro-
  • Benzene, 1,1'-(dichloroethenylidene)bis[4-chloro-
  • bis(chloro-4phenyl)-2,2dichloro-1,1ethylene
  • 2,2-BIS-(4-CHLOROPHENYL)-1,1-DICHLOROETHYLENE (4,4'-DDE)
  • 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene solution
  • 4,4'-dde solution
  • BIS(4-CHLOROPHENYL)-1,1-DICHLOROETHENE
  • 1,1-BIS(4-CHLOROPHENYL)-2,2-DICHLOROETHENE
  • DICHLORODIPHENYLDICHLOROETHENE
  • 1,1-DI(4-CHLOROPHENYL)-2,2-DICHLOROETHYLENE
  • DI(PARA-CHLOROPHENYL)DICHLOROETHENE
  • 1,1-dichloro-2,2-bis(p-chlorophenyl)-ethylen
  • 1,1-Dichloro-2,2-di(p-chlorophenyl)ethylene
  • 1-Chloro-4-[2,2-dichloro-1-(4-chlorophenyl)vinyl]benzene
  • 2,2-Bis(4-chlorophenyl)-1,1-dichloroethene
  • 2,2-bis(4-chlorophenyl)1,1-dichloroethene
  • 2,2-bis(p-Chlorophenyl)-1-chloroethene
  • 2,2-Dichloro-1,1-bis(4-chlorophenyl)ethylene
  • p,p'-DDE [4,4'-Dichlorodiphenyldichloroethylene]
  • p, p'-DDE solution
  • p,p'-DDE in Methanol
  • NSC 1153
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene p,p'-DDE
  • 1,1’-(dichloroethenylidene)bis(4-chloro-Benzene
  • 1,1’-(dichloroethenylidene)bis(4-chlorobenzene)
  • 1,1’-(dichloroethylidene)bis(4-chlorobenzene)
  • 1,1’-dichloroethenylidene)bis(4-chlorobenzene)
  • 1,1-Bis(p-chlorophenyl)-2,2-dichloroethylene
  • 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene
  • 1,1-dichloro-2,2-bis(para-chlorophenyl)ethylene
  • 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethene
  • P;P'-DDE;DICHLORODIPHENYLDICHLOROETHYLENE;P;P'-DICHLORODIPHENYLDICHLOROETHYLENE
  • p'-DDE
  • p'-dichlorodiphenyldichloroethylene
  • dde(1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene)
  • DDE(p,p')
  • DDT dehydrochloride
  • ddtdehydrochloride
  • Dichlorodiphenyldichloroethylene
  • Ethylene, 1,1-dichloro-2,2-bis(p-chlorophenyl)-
  • NCI-C00555
  • p,p'-(Dichlorodiphenyl)-2,2-dichloroethylene
  • p,p'-(Dichlorodiphenyl)dichloroethylene
  • p,p’-dichlorodiphenyldichloroethylene
  • 4, 4′-DDE, 100 μg/μL in acetone
  • p,p'-DDE Solution, 100ppm
  • p,p'-DDE solution,10ppm
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene 99%
  • p,p'-DDE solution,1000ppm