DDE
[CAS# 72-55-9]

Identification

• Classification: Chemical pesticide >> Insecticide
• Name: DDE
• Synonyms: 2,2-Dichloro-1,1-bis(4-chlorophenyl)ethylene; 4,4'-DDE; 4,4'-Dichlorodiphenyldichloroethylene; DDE; NSC 1153; p,p'-DDE; p,p'-Dichlorodiphenyldichloroethylene
• Molecular Formula: C₁₄H₈Cl₄
• Molecular Weight: 318.02
• CAS Registry Number: 72-55-9
• EC Number: 200-784-6

Properties

• Density: 1.402±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 89 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Prill, Edward A.; Contributions from Boyce Thompson Institute 1946, V14, P341-53.

Safety Data

• Hazard Symbols: Xn;N
• Risk Codes: R22;R40;R50/53
• Safety Description: S36/37;S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Carcinogenicity	Carc.	2	H351
Acute toxicity	Acute Tox.	3	H301
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Acute toxicity	Acute Tox.	4	H302

• Transport Information: UN 3077 9 / PGIII