4,4'-DDE
- CAS No.
- 72-55-9
- Chemical Name:
- 4,4'-DDE
- Synonyms
- p'-DDE;NSC 1153;P,P'-DDE;4,4'-DDE;4,4'-DDEe;DDE(p,p');p, p’-DDE;p,p''-DDE;NCI-C00555;PARAPARADDE
- CBNumber:
- CB9776968
- Molecular Formula:
- C14H8Cl4
- Molecular Weight:
- 318.03
- MDL Number:
- MFCD00000837
- MOL File:
- 72-55-9.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 4,4′-DDE PESTANAL , analytical standard | 35487 | 100mg | $76.6 |
| 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene 99% | 123897 | 1G | $98.8 |
| 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene >99.0%(GC) | B0133 | 1g | $102 |
| 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene >99.0%(GC) | B0133 | 5g | $407 |
| 4,4′-DDE certified reference material, TraceCERT | 43537 | 50mg | $214 |
| More product size | |||
| 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 | Solid |
| 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. |
| Toxicology and Carcinogenesis | Bioassays of DDT, TDE, and p,p'-DDE for Possible Carcinogenicity (CASRN 50-29-3, CASRN 72-54-8, CASRN 72-55-9) |
| EWG's Food Scores | 3 |
| FDA UNII | 4M7FS82U08 |
| EPA Substance Registry System | p,p'-DDE (72-55-9) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301-H351-H372-H410 | |||||||||
| Precautionary statements | P201-P273-P301+P310+P330 | |||||||||
| Hazard Codes | Xn,N,T,F | |||||||||
| Risk Statements | 22-40-50/53-52/53-39/23/24/25-23/24/25-11-67-65-38-51/53 | |||||||||
| Safety Statements | 36/37-60-61-45-16-7-62-33-29-9 | |||||||||
| RIDADR | UN 3077 9/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | KV9450000 | |||||||||
| HazardClass | 9 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29036990 | |||||||||
| Hazardous Substances Data | 72-55-9(Hazardous Substances Data) | |||||||||
| Toxicity | Acute oral LD50 for rats 880 mg/kg (RTECS, 1985). | |||||||||
| NFPA 704 |
|
4,4'-DDE price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 35487 | 4,4′-DDE PESTANAL , analytical standard | 72-55-9 | 100mg | $76.6 | 2025-07-31 | Buy |
| Sigma-Aldrich | 123897 | 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene 99% | 72-55-9 | 1G | $98.8 | 2023-01-07 | Buy |
| TCI Chemical | B0133 | 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene >99.0%(GC) | 72-55-9 | 1g | $102 | 2025-07-31 | Buy |
| TCI Chemical | B0133 | 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene >99.0%(GC) | 72-55-9 | 5g | $407 | 2025-07-31 | Buy |
| Sigma-Aldrich | 43537 | 4,4′-DDE certified reference material, TraceCERT | 72-55-9 | 50mg | $214 | 2024-03-01 | Buy |
4,4'-DDE Chemical Properties,Uses,Production
Chemical Properties
white crystalline powder
Uses
Military product; chemical research. Degradation product of p,p′-DDT.
Uses
1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane(DDE) has been used to study the ability of Pseudomonas acidovorans M3GY to transform DDE and its unchlorinated analog, 1,1-diphenylethylene (DPE).It has been used to investigate the role of incubation time, solvent type, yeast inoculum growth stage and concentration on the results of yeast assay for estrogenic compounds.
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.
Toxics Screening Level
The Initial Risk Screening Level (IRSL) for p,p'-DDE is 0.01 μg/m3 based on an annual averaging time.
4,4'-DDE Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-17392712697 | 1022@dideu.com | China | 3996 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29798 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32435 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | 1026@dideu.com | China | 9080 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 39035 | 58 |
| HANGZHOU LEAP CHEM CO., LTD. | +86-571-87711850 | market18@leapchem.com | China | 43339 | 58 |
| Aladdin Scientific | tp@aladdinsci.com | United States | 57505 | 58 | |
| DAYANG CHEM (HANGZHOU) CO.,LTD | +86-88938639 +86-17705817739 | info@dycnchem.com | China | 53899 | 58 |
| Shanghai Hanhong Scientific Co., Ltd. | +undefined17612118332 | Lucky@hanhonggroup.com | China | 5844 | 58 |
| Mainchem Co., Ltd. | +86-0592-6210733 | sale@mainchem.com | China | 32343 | 55 |
View Lastest Price from 4,4'-DDE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-11-04 | p,p'-DDE
72-55-9
|
US $29.00 / mL | 99.68% | 10g | TargetMol Chemicals Inc. | ||
 |
2024-08-05 | 4,4'-DDE
72-55-9
|
US $0.10 / KG | 1KG | 98.0% | 10 | Shaanxi Dideu Medichem Co. Ltd | |
 |
2020-02-21 | 4,4'-DDE
72-55-9
|
US $8.00 / KG | 1g | ＞98% HPLC | kg--ton | Career Henan Chemical Co |
72-55-9(4,4'-DDE)Related Search:
1of4
