Detail of "72-20-8"
- MSDS Download

- CAS Number:
- 72-20-8
- Name:
2,7:3,6-Dimethanonaphth[2,3-b]oxirene,3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-,(1aR,2R,2aR,3R,6S,6aS,7S,7aS)-rel-
- Molecular Structure:
![Molecular Structure of 72-20-8 (2,7:3,6-Dimethanonaphth[2,3-b]oxirene,3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-,(1aR,2R,2aR,3R,6S,6aS,7S,7aS)-rel-)](http://www.lookchem.com/300w/2010/0623/72-20-8.jpg)
- Formula:
- C12H8 Cl6 O
- Molecular Weight:
- 380.90
- Synonyms:
- 1,4:5,8-Dimethanonaphthalene,1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-, endo,endo-(8CI); 2,7:3,6-Dimethanonaphth[2,3-b]oxirene,3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aa,2b,2ab,3a,6a,6ab,7b,7aa)-; 1,2,3,4,10,10-Hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-endo-1,4-endo-5,8-dimethanonaphthalene;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;Compd. 269; EN 57; Endrex; Endricol; Endrin; Experimental Insecticide 269;Hexadrin; Mendrin; Oktanex; SD 3419; Stardrin; Stardrin 20
- Melting Point:
- ca. 200 C (decomposes)
- Solubility:
- negligible
- Appearance:
- white or beige crystalline solid
- 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.
- Safety:
- 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. Details

2,7:3,6-Dimethanonaphth[2,3-b]oxirene,3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-,(1aR,2R,2aR,3R,6S,6aS,7S,7aS)-rel-
![Molecular Structure of 72-20-8 (2,7:3,6-Dimethanonaphth[2,3-b]oxirene,3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-,(1aR,2R,2aR,3R,6S,6aS,7S,7aS)-rel-)](http://www.lookchem.com/300w/2010/0623/72-20-8.jpg)
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Reference
- Relative toxicity of some insecticides to brown planthopper, Nilaparvata lugens Stal
- Relative toxicity of some insecticides to brown planthopper, Nilaparvata lugens Stal. Rao, P. R. M.; Rao, P. S. Prakasa (Cent. Rice Res. Inst., Cuttack 735 006, India). Pesticides, 18(10), 55-7 (English) 1984. CODEN: PSTDAN. ISSN: 0031-6148. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) The relative toxicity of test insecticides to the brown planthopper followed this order: phosphamidon [13171-21-6] > monocrotophos [6923-22-4] > carbofuran [1563-66-2] > chlorpyrifos [2921-88-2] > quinalphos [13593-03-8] > carbaryl [63-25-2] > endrin [72-20-8] > diazinon [333-41-5] > chlorfenvinphos [470-90-6] > lindane [58-89-9] > endosulfan [115-29-7] > mephosfolan [950-10-7].
- Chemical control of Steirastoma breve (Sulzer) (Coleoptera, Cerambycidae), the cacao tree trunk-borer in the Brazilian Amazonia
- Chemical control of Steirastoma breve (Sulzer) (Coleoptera, Cerambycidae), the cacao tree trunk-borer in the Brazilian Amazonia. Garcia, Joao de Jesus da Silva; Mendes, Antonio Carlos de B. (Dep. Espec. Amazonia, CEPLAC, Para, Brazil). Rev. Theobroma, 14(1), 69-72 (Portuguese) 1984. CODEN: RVTHBB. ISSN: 0370-7962. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) The effectiveness of 5 insecticides tested in the field for the control of trunk borer (S. breve) larvae, on cocoa, was in the decreasing order: endosulfan [115-29-7] (350 g/ha), endrin [72-20-8] (200), triazophos [24017-47-8] (500), cartap [15263-53-3] (375), and aldrin [309-00-2] (350).

