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CAS No 72-20-8 , endrin

  • Name: endrin
  • Synonyms: 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth(2,3-b)oxirene, (1aA,2B,2aB,3A,6A,6aB,7B,7aA)-; 2,7:3,6-Dimethanonaphth(2,3-b)oxirane, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aalpha,2beta,3alpha,6alpha,6abeta,7beta,7aalpha)-; 3,4,5,6,9,9-Hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth(2,3-b)oxirene; hexachloroepoxyoctahydro-endo,endo-dimethanonaphthalene; experimental insecticide 269; 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-endo,endo-1,4:5,8-dimethanonaphthalene;endrin; (1aalpha,2beta,2abeta,3alpha,6alpha,6abeta,7beta,7aalpha)-3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-Dimethanonaphth[2,3-b]oxirene; Mendrin; Nendrin; Hexadrin;1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-1,4-endo-endo-5,8-dimethano-naphthalene; endrin mixture; experimental insecticide no. 269; Endrex; compound 269; oms 197; Endrin? Endrin 1.6 EC; (1R,4S,5R,8S)-1,2,3,4,10,10-hexachloro-1,4,4a,5,6,7,8,8a-octahydro-6,7-epoxy-1,4:5,8-dimethanonaphthalene;
  • CAS Registry Number:
  • Melting Point: ca. 200 C (decomposes)
  • Flash Point: 155.3°C
  • Boiling Point: 416.2°C at 760 mmHg
  • Density: 1.84g/cm3
  • Refractive index: 1.676
  • Water Solubility: negligible
  • Safety Statements: Poison by ingestion, skin contact, and intravenous routes. Experimental teratogenic and reproductive effects. Questionable carcinogen. Mutation data reported. A central nervous system stimulant. Highly toxic to birds, fish, and humans. Many cases of fatal poisoning have been attributed to it. Does not accumulate in human tissue. In humans, ingestion of 1 mg/kg has caused symptoms. A dangerous fire hazard. Mixtures with parathion dissolve very exothermically in petroleum solvents and may cause an air-vapor explosion. See also ALDRIN.
  • Hazard Symbols: Toxic by inhalation and skin absorption, a carcinogen, use may be restricted. TLV: 0.1 mg/m3; not classifiable as a human carcinogen.
  • Flash Point: 155.3°C
  • EINECS: 200-775-7
  • Molecular Weight: 380.91
  • InChI: InChI=1/C12H8Cl6O/c13-8-9(14)11(16)5-3-1-2(6-7(3)19-6)4(5)10(8,15)12(11,17)18/h2-7H,1H2/t2-,3-,4?,5?,6?,7?,10-,11-/m0/s1
  • Molecular Formula: C12H8Cl6O
  • Molecular Structure:CAS No:72-20-8 endrin
References of endrin
Title: Endrin
CAS Registry Number: 72-20-8
CAS Name: (1aR,2R,2aR,3R,6S,6aS,7S,7aS)-rel-3,4,5,6,9,9-Hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-2,7:3,6-dimethanonaphth[2,3-b]oxirene
Synonyms: 1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-endo,endo-1,4:5,8-dimethanonaphthalene; mendrin; nendrin; hexadrin; experimental insecticide no. 269
Manufacturers' Codes: compd 269; ENT-17251
Molecular Formula: C12H8Cl6O
Molecular Weight: 380.91
Percent Composition: C 37.84%, H 2.12%, Cl 55.84%, O 4.20%
Literature References: Stereoisomer of dieldrin, q.v. Prepn from isodrin: H. Bluestone, US 2676132 (1954 to Shell); Marks, US 2899446 (1959 to Velsicol). Metabolism: M. K. Baldwin et al., Pestic. Sci. 7, 575 (1976). Carcinogenicity studies: M. D. Rueber, Sci. Total Environ. 12, 101 (1979). Toxicity study: T. B. Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969). Review of toxicology and human exposure: Toxicological Profile for Endrin (PB97-121040, 1996) 227 pp.
Properties: Crystals, dec 245°. Vapor pressure at 25°: 2′10-7 mm Hg. Soly in g/100 ml solvent at 25°: acetone 17, benzene 13.8, carbon tetrachloride 3.3, hexane 7.1, xylene 18.3. LD50 in female, male rats (mg/kg): 7.5, 18 orally (Gaines).
Toxicity data: LD50 in female, male rats (mg/kg): 7.5, 18 orally (Gaines)
CAUTION: Potential symptoms of overexposure are epileptiform convulsions; stupor, headache and dizziness; abdominal discomfort, nausea and vomiting; insomnia; aggressiveness, confusion; lethargy, weakness; anorexia. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 126.
Use: Formerly as insecticide.