Isobenzan
Names | |
---|---|
IUPAC name
1,3,4,5,6,7,8,8-Octachloro-1,3,3a,4,7,7a-hexahydro-4,7-methanoisobenzofuran | |
Other names
Telodrin; 1,3,4,5,6,7,8,8-Octachloro-4,7-methylene-3a,4,7,7a-tetrahydro-isobenzofuran | |
Identifiers | |
3D model (JSmol) |
|
ECHA InfoCard | 100.005.497 |
KEGG | |
RTECS number | PC1225000 |
| |
Properties | |
C9H4Cl8O | |
Molar mass | 411.73 g·mol−1 |
Appearance | Whitish to light brown crystalline powder |
Density | 1.87 g/cm3 |
Melting point | 121.3 °C (250.3 °F; 394.4 K) |
Practically insoluble | |
Hazards | |
EU classification (DSD) (outdated) |
T+, N |
R-phrases (outdated) | R27/28 R50 |
S-phrases (outdated) | S28 S36/37 S45 S61 |
NFPA 704 | |
Flash point | Non-flammable |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is ?) | |
Infobox references | |
Isobenzan (telodrin) is a highly toxic organochloride insecticide. It was produced only in the period from 1958 to 1965 and its use has been since discontinued.[1] It is a persistent organic pollutant that can remain in soil for 2 to 7 years, and the biological half-life of isobenzan in human blood is estimated to be about 2.8 years.[1]
It is classified as an extremely hazardous substance in the United States as defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities.[3]
References
- 1 2 3 Isobenzan, International Programme on Chemical Safety
- ↑ Isobenzan at Sigma-Aldrich
- ↑ "40 C.F.R.: Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities" (PDF) (July 1, 2008 ed.). Government Printing Office. Retrieved October 29, 2011.
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