Terbufos

Terbufos
Names
Preferred IUPAC name
S-[(tert-Butylsulfanyl)methyl] O,O-diethyl phosphorodithioate
Other names
  • Counter
  • Contraven
  • Aragan
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.032.679 Edit this at Wikidata
UNII
  • InChI=1S/C9H21O2PS3/c1-6-10-12(13,11-7-2)15-8-14-9(3,4)5/h6-8H2,1-5H3
    Key: XLNZEKHULJKQBA-UHFFFAOYSA-N
  • InChI=1/C9H21O2PS3/c1-6-10-12(13,11-7-2)15-8-14-9(3,4)5/h6-8H2,1-5H3
    Key: XLNZEKHULJKQBA-UHFFFAOYAH
  • S=P(OCC)(SCSC(C)(C)C)OCC
Properties[1]
C9H21O2PS3
Molar mass 288.42 g·mol−1
Appearance clear, colorless to pale yellow or reddish-brown liquid
Density 1.105 g/mL (at 24 °C)
Melting point −29.2 °C (−20.6 °F; 244.0 K)
Boiling point 69 °C (156 °F; 342 K)
< 1 mg/mL
Solubility Freely soluble in organic compounds
Vapor pressure 0.0003 mmHg
Hazards[3]
GHS labelling:
GHS06: ToxicGHS08: Health hazardGHS09: Environmental hazard
Danger
H227, H300, H310, H330, H361, H370, H372, H410
P201, P202, P210, P233, P235, P260, P262, P264, P270, P271, P273, P280, P281, P284, P301, P302, P304, P307, P308, P310, P311, P313, P314, P320, P321, P322, P330, P340, P350, P361, P363, P370, P378, P391, P403, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
4
3
0
Flash point 88 °C (190 °F; 361 K)
Lethal dose or concentration (LD, LC):
Rat (male), Oral LD50 = 13 mg/kg

Rat (female), Oral LD50 = 8 mg/kg Rat (male), Dermal LD50 = 123 mg/kg Rat (female), Dermal LD50 = 71 mg/kg

Rat (male), Inhalation (4 hr): 0.017 mg/L

Rat (female), Inhalation(4 hr): 0.015 mg/L Rat (male), Inhalation (1 hr calculated): 0.068 mg/L Rat (female), Inhalation (1 hr): 0.06 mg/L

NIOSH (US health exposure limits):
PEL (Permissible)
 0 ppm [2]
REL (Recommended)
 0 ppm [2]
Safety data sheet (SDS) [1]
Pharmacology[4]
  • Intraocular
  • Oral
  • Epicutaneous
  • Inhalation
Pharmacokinetics:
Urine (86.9 - 96 %)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Terbufos is a chemical compound used in insecticides and nematicides. It is part of the chemical family of organophosphates. It is a clear, colourless to pale yellow or reddish-brown liquid and sold commercially as granulate.[5]

  1. ^ "Terbufos".
  2. ^ a b "OSHA Occupational Chemical Database | Occupational Safety and Health Administration".
  3. ^ http://www.kellysolutions.com/erenewals/documentsubmit/KellyData/VA/pesticide/MSDS/7969/241-238/241-238_COUNTER_R__15G_SYSTEMIC_INSECTICIDE_NEMATICIDE_LOCKN_LOAD_R__CLOSED_LOADING_SYSTEM_11_28_2006_4_50_14_PM.pdf [bare URL PDF]
  4. ^ apps.who.int/pesticide-residues-jmpr-database/Document/181
  5. ^ Cite error: The named reference :2 was invoked but never defined (see the help page).