Endosulfan

Endosulfan is an off-patent organochlorine insecticide and acaricide that is being phased out globally. It became a highly controversial agrichemical due to its acute toxicity, potential for bioaccumulation, and role as an endocrine disruptor. Because of its threats to human health and the environment, a global ban on the manufacture and use of endosulfan was negotiated under the Stockholm Convention in April 2011. The ban took effect in mid-2012, with certain uses exempted for five additional years. More than 80 countries, including the European Union, Australia, New Zealand, several West African nations, the United States, Brazil, and Canada had already banned it or announced phase-outs by the time the Stockholm Convention ban was agreed upon. It is still used extensively in India and China despite laws against its use. It is also used in a few other countries. It is produced by the Israeli firm Makhteshim Agan and several manufacturers in India and China. On May 13, 2011, the India Supreme Court ordered a ban on the production and sale of endosulfan in India, pending further notice.

Endosulfan
Names
IUPAC name
6,7,8,9,10,10-Hexachloro-1,5,5a,6,9,9a-hexahydro- 6,9-methano-2,4,3-benzodioxathiepine-3-oxide
Other names
Benzoepin, Endocel, Parrysulfan, Phaser, Thiodan, Thionex
Identifiers
3D model (JSmol)
1262315
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.709
EC Number
  • 204-079-4
KEGG
PubChem CID
RTECS number
  • RB9275000
UNII
UN number 2761
  • InChI=1S/C9H6Cl6O3S/c10-5-6(11)8(13)4-2-18-19(16)17-1-3(4)7(5,12)9(8,14)15/h3-4H,1-2H2/t3-,4-,7-,8+,19+/m0/s1 Y
    Key: RDYMFSUJUZBWLH-QDLMHMFQSA-N Y
  • InChI=1/C9H6Cl6O3S/c10-5-6(11)8(13)4-2-18-19(16)17-1-3(4)7(5,12)9(8,14)15/h3-4H,1-2H2
    Key: RDYMFSUJUZBWLH-UHFFFAOYAH
  • InChI=1/C9H6Cl6O3S/c10-5-6(11)8(13)4-2-18-19(16)17-1-3(4)7(5,12)9(8,14)15/h3-4H,1-2H2/t3-,4-,7-,8+,19+/m0/s1
    Key: RDYMFSUJUZBWLH-QDLMHMFQBI
SMILES
  • Cl[C@@]3(Cl)[C@]1(Cl)C(/Cl)=C(/Cl)[C@@]3(Cl)[C@H]2[C@@H2]OS(=O)O[C@@H2][C@H]12
Properties
C9H6Cl6O3S
Molar mass 406.90 g·mol−1
Appearance Brown crystals
Odor slight sulfur dioxide odor
Density 1.745 g/cm3
Melting point 70 to 100 °C (158 to 212 °F; 343 to 373 K)
Boiling point decomposes
0.33 mg/L
Vapor pressure 0.00001 mmHg (25 °C)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
T, Xi, N
GHS labelling:
Danger
H301, H302, H410
P264, P270, P273, P301+P310, P301+P312, P321, P330, P391, P405, P501
NFPA 704 (fire diamond)
2
1
0
Flash point noncombustible
NIOSH (US health exposure limits):
PEL (Permissible)
none
REL (Recommended)
TWA 0.1 mg/m3 [skin]
IDLH (Immediate danger)
N.D.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references
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