Structural Formula Vector Image
Title: 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethane
CAS Registry Number: 72-54-8
CAS Name: 1,1¢-(2,2-Dichloroethylidene)bis[4-chlorobenzene]
Additional Names: tetrachlorodiphenylethane; TDE; dichlorodiphenyldichloroethane; DDD; p,p¢-DDD; p,p¢-TDE
Trademarks: Rhothane
Molecular Formula: C14H10Cl4
Molecular Weight: 320.04
Percent Composition: C 52.54%, H 3.15%, Cl 44.31%
Literature References: Non-degradable pesticide; a component of technical grade DDT, q.v. Prepd by condensing dichloroacetaldehyde with chlorobenzene: Haller et al., J. Am. Chem. Soc. 67, 1596, 1600 (1945). Toxicity study: T. B. Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969). Review of toxicology and human exposure: Toxicological Profile for DDT, DDE, DDD (PB2003-100137, 2002) 497 pp.
Properties: Crystals, mp 109-110°. The chemical properties and solys are similar to those of DDT. LD50 orally in rats: >4000 mg/kg (Gaines).
Melting point: mp 109-110°
Toxicity data: LD50 orally in rats: >4000 mg/kg (Gaines)
CAUTION: Potential symptoms of overexposure are similar to DDT.
Use: Insecticide.

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