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© Melvin Olsson 2025–2026
Data: IAEA & PubChem

DDT

C₁₄H₉Cl₅·354.486 g/mol·Organic·CID 3036
PesticideHistoricalControversial

Dichlorodiphenyltrichloroethane — once the most widely used insecticide. Rachel Carson's 'Silent Spring' (1962) documented its ecological damage, particularly eggshell thinning in raptors. Banned in most countries but still used in some regions for malaria control.

IUPAC: 1-chloro-4-[2,2,2-trichloro-1-(4-chlorophenyl)ethyl]benzene

Also known as: 1-Chloro-4-(2,2,2-trichloro-1-(4-chlorophenyl)ethyl)benzene, RefChem:127031, Clofenotane, p,p'-DDT, 50-29-3 (+14 more)

2D structure of DDT

Molecular Structure

Molecular Propertiesmass · H-bonds · stereo

Molecular Weight

354.500g/mol

Exact Mass

353.911739Da

Monoisotopic Mass

351.914689Da

XLogP

6.9

Polar Surface Area

0.0Ų

Complexity

250

Formal Charge

0

H-Bond Donors

0

H-Bond Acceptors

0

Rotatable Bonds

2

Heavy Atoms

19

Stereo Centers

0

Bond Stereo

0

Drug-Likeness (Lipinski's Rule of Five)

✓ 354.5 g/mol
MW ≤ 500
✗ 6.9
LogP ≤ 5
✓ 0
H-bond donors ≤ 5
✓ 0
H-bond acceptors ≤ 10

1 violation — may still have acceptable bioavailability

GHS Hazard Classification

Danger
Acute Toxic
Acute Toxic
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Irritant
Irritant
Hazards
  • H301Toxic if swallowed
  • H351Suspected of causing cancer
  • H400Very toxic to aquatic life
  • H410Very toxic to aquatic life with long lasting effects
  • H311Toxic in contact with skin
  • H372Causes damage to organs through prolonged or repeated exposure
  • H320Causes eye irritation
  • H340May cause genetic defects
  • H350May cause cancer
  • H360May damage fertility or the unborn child

Source: PubChem GHS Classification. Always consult the SDS for handling.

Chemical IdentifiersSMILES · InChI

InChI

InChI=1S/C14H9Cl5/c15-11-5-1-9(2-6-11)13(14(17,18)19)10-3-7-12(16)8-4-10/h1-8,13H

Constituent Elements

C
CarbonZ=6
H
HydrogenZ=1
Cl
ChlorineZ=17

External Resources

PubChem ↗Wikipedia ↗