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Insecticides and acaricides

P,P'-Dde

Also known as 4,4'-DDE, 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene, DDT dehydrochloride

CAS 72-55-9Formula C14H8Cl4Molar mass 318.03 g/molEC 200-784-6
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant, Serious health hazard, Hazardous to the environment 55 suppliers listed
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P,P'-Dde chemical structure, C14H8Cl4, CAS 72-55-9
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White, crystalline solid
Melting point
89 °C
Boiling point
316.5 °C
Solubility
In water, 0.065 mg/L at 24 °C
HS code
290399
Category
Insecticides and acaricides
UN number
UN 3077
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is P,P'-Dde?

Plain description, key identifiers and synonyms

DDE is a chlorophenylethylene that is ethylene substituted by two 4-chlorophenyl groups at position 1 and two chlorine atoms at position 2. It has a role as a human xenobiotic metabolite and a persistent organic pollutant. It is a chlorophenylethylene and a member of monochlorobenzenes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-chloro-4-[2,2-dichloro-1-(4-chlorophenyl)ethenyl]benzene
CAS number
72-55-9 CAS number cross-checkedOther or deprecated CAS: 68679-99-2
EC numbers
200-784-6, 272-060-8
Molecular formula
C14H8Cl4
UNII
4M7FS82U08
MDL number
MFCD00000837
InChIKey
UCNVFOCBFJOQAL-UHFFFAOYSA-N
InChI
InChI=1S/C14H8Cl4/c15-11-5-1-9(2-6-11)13(14(17)18)10-3-7-12(16)8-4-10/h1-8H
SMILES (canonical and isomeric)
C1=CC(=CC=C1C(=C(Cl)Cl)C2=CC=C(C=C2)Cl)Cl

Synonyms

  • 4,4'-DDE
  • 2,2-Bis(4-chlorophenyl)-1,1-dichloroethylene
  • DDT dehydrochloride
  • dichlorodiphenyldichloroethylene
  • 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethylene
  • p,p'-Dichlorodiphenyldichloroethylene
  • 1-chloro-4-[2,2-dichloro-1-(4-chlorophenyl)ethenyl]benzene
  • p,p'-Dichlorodiphenyl dichloroethylene
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethylene
  • 1,1-Dichloro-2,2-di(p-chlorophenyl)ethylene
  • 2,2-Bis(4-chlorophenyl)-1,1-dichloroethene
  • 1,1-Bis(p-chlorophenyl)-2,2-dichloroethylene
  • Dichlorodiphenyl Dichloroethylene
  • 1,1-Dichloro-2,2-bis(4'-chlorophenyl)ethylene
  • Benzene, 1,1'-(dichloroethenylidene)bis(4-chloro-
  • Benzene, 1,1'-(dichloroethenylidene)bis[4-chloro-
  • 1-chloro-4-(2,2-dichloro-1-(4-chlorophenyl)ethenyl)benzene
  • 2,2-bis(p-chlorophenyl)-1,1-dichloroethene
  • 1,1'-Bis(chlorophenyl)-2,2-dichloroethylene
  • Dichloroethylene, Dichlorodiphenyl
  • p,p-Dichlorodiphenyldichloroethylene
  • Benzene, 1,1'-(dichloroethenylidene)bis(4-chloro-)
  • 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethene
  • DDE
  • DDE, p,p'-
Show all 38 synonyms
  • p,p'-(Dichlorodiphenyl)-2,2-dichloroethylene
  • 1,1'-(Dichloroethenylidene)bis(4-chlorobenzene)
  • Ethylene, 1,1-dichloro-2,2-bis(p-chlorophenyl)-
  • 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethene
  • 2,2-Bis(p-chlorophenyl)-1,1-dichloroethylene
  • 1,1'-(2,2-dichloroethene-1,1-diyl)bis(4-chlorobenzene)
  • DDE, NSC 1153, p,p'-DDE
  • Benzene, 1,1'-(2,2-dichloroethenylidene)bis[4-chloro-
  • p,p'-DDE (p,p'-Dichlorodiphenyldichloroethylene)
  • 1,1-Dichloro-2,2-bis(4'-chlorophenyl)ethylene (DDE)
  • 1-Chloro-4-[2,2-dichloro-1-(4-chlorophenyl)vinyl]benzene
  • p, p inverted exclamation mark -DDE
  • 1-[2,2-Bis(Chloranyl)-1-(4-Chlorophenyl)ethenyl]-4-Chloranyl-Benzene

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White, crystalline solidexp.
Melting point
89 °Cexp.
Boiling point
316.5 °Cexp.
Solubility
In water, 0.065 mg/L at 24 °Cexp.
Vapour pressure
6.0 × 10⁻⁶ mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
318.03 g/molcalc.
Exact mass
315.938 Dacalc.
LogP (octanol/water)
6.19calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
2calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C=C(c1ccccc1)c1ccccc1

C=C(c1ccccc1)c1ccccc1

2 rings, 14 atoms, the 1,1-Diphenylethylene ring system.

726 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H302Harmful if swallowed.
  • H311Toxic in contact with skin.
  • H315Causes skin irritation.
  • H331Toxic if inhaled.
  • H332Harmful if inhaled.
  • H351Suspected of causing cancer.
  • H372Causes damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (26)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

P,P'-Dde suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 55 suppliers
30 of 30 offers
  • Upashna Enterprises
    India, GurugramUnclaimed profile
    P,P'-ddeGrade, purity and minimum order on request
    Price on request
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  • Neochema GmbH
    GermanyUnclaimed profile
    P,P'-ddeGrade, purity and minimum order on request
    Price on request
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  • 001Chemical
    China, HangzhouUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • 10X Chem
    United States, San DiegoUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • 3WAY Pharm Inc
    China, ShanghaiUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • A2B Chem LLC
    United States, San DiegoUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • Aa Blocks LLC
    United States, San DiegoUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • Aaron Chemicals LLC.
    China, NanjingUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
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  • AbaChemScene, LLC
    United States, Monmouth JunctionUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
    View
  • ABCR GmbH & CO. KG
    GermanyUnclaimed profile
    P,P'-DdeGrade, purity and minimum order on request
    Price on request
    View

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

55 suppliers in 11 countries

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P,P'-Dde price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

DDT was extensively used in the past for the control of malaria, typhus, and other insect-transmitted diseases. It was banned for use in the United States in 1972, except in the case of a public health emergency.

Use classes: Insecticides.

Pharmacological actions

  • Insecticides

Roles

  • animal metabolite
  • environmental contaminant
  • eukaryotic metabolite
  • human metabolite
  • human xenobiotic metabolite
  • mammalian metabolite
  • metabolite
  • persistent organic pollutant
  • xenobiotic metabolite

Functional uses

  • Biocide

How it is made

In alkaline solution, DDT is dehydrochlorinated readily to the noninsecticidal 1,1-dichloroethenylidenebis(4-chlorobenzene).

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Inactive in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code P,P'-Dde is traded under.

HS 2903.99Indicative HS code

Halogenated derivatives of aromatic hydrocarbons, other

World exports in 2024
$798M
−15.8% vs 2023, imports $786M
2019 to 2024
Top exporters
  1. China51.0%
  2. United States15.9%
  3. Belgium8.6%
Top importers
  1. India * partner reported16.1%
  2. United States14.7%
  3. Germany10.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for P,P'-Dde is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about P,P'-Dde, based on the data on this page

What is P,P'-Dde?

DDE is a chlorophenylethylene that is ethylene substituted by two 4-chlorophenyl groups at position 1 and two chlorine atoms at position 2. It has a role as a human xenobiotic metabolite and a persistent organic pollutant. It is a chlorophenylethylene and a member of monochlorobenzenes.

What is the CAS number of P,P'-Dde?

The CAS registry number of P,P'-Dde is 72-55-9. Other or deprecated CAS numbers: 68679-99-2.

What is the molecular formula and weight of P,P'-Dde?

The molecular formula of P,P'-Dde is C14H8Cl4 and its molar mass is 318.03 g/mol.

What is P,P'-Dde used for?

DDT was extensively used in the past for the control of malaria, typhus, and other insect-transmitted diseases. It was banned for use in the United States in 1972, except in the case of a public health emergency. Use classes: Insecticides.

Is P,P'-Dde hazardous?

P,P'-Dde carries the GHS signal word "Danger". Main hazards: toxic if swallowed, harmful if swallowed, toxic in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of P,P'-Dde?

P,P'-Dde is usually classified under HS code 290399 (Halogenated derivatives of aromatic hydrocarbons, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy P,P'-Dde?

CompoundList lists 55 suppliers of P,P'-Dde in United States, China, Germany, Spain and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy P,P'-Dde in India?

1 supplier in India list P,P'-Dde on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of P,P'-Dde?

Suppliers quote P,P'-Dde on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle P,P'-Dde

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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