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Substance Name: Demeton-methyl [BSI]
RN: 8022-00-2
UNII: B9PMD9I0FE
InChIKey: KPNPDRFFWQBXGT-UHFFFAOYSA-N

Molecular Formula

  • C6-H15-O3-P-S2.C6-H15-O3-P-S2

Molecular Weight

  • 460.575
 

Classification Codes

Classification Codes

  • Acaricide
  • Agricultural Chemical
  • Insecticide
  • Insecticides
  • Out-Dated Pesticide
  • Pesticides
  • Reproductive Effect

Superlist Classification Code

  • TWA (0.5 mg/m3); skin; BEI
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Names and Synonyms

Results Name

  • Demeton-methyl [BSI]

Name of Substance

  • Demeton-methyl [BSI]
  • Methyl demeton
  • Methyl mercaptophos

Synonyms

  • Bayer 21/116
  • Caswell No. 456
  • CCRIS 3898
  • Demeton M
  • Demeton methyl
  • Demeton-methyl
  • EPA Pesticide Chemical Code 058701
  • Metasystox
  • Metasystox forte
  • Methyl demeton
  • Methyl demeton 25 EC
  • Methyl mercaptophos
  • Methyl systox
  • Methyl-mercaptophos
  • Methylmerkaptofos
  • Methylmerkaptofos [Czech]
  • Phosphorothioic acid, O-(2-(ethylthio)ethyl) O,O-dimethyl ester, mixt. with S-(2-(ethylthio)ethyl) O,O-dimethyl ester
  • S(and O)-2-(Ethylthio)ethyl O,O-dimethyl phosphorothioate
  • UNII-B9PMD9I0FE

Systematic Names

  • Metasystox
  • Phosphorothioic acid, O,O-dimethyl O-(2-(ethylthio)ethyl) ester, mixed with O,O-dimethyl S-(2-(ethylthio)ethyl) ester (7:3)
  • Phosphorothioic acid, O-(2-(ethylthio)ethyl) O,O-dimethyl ester, mixt. with S-(2-(ethylthio)ethyl) O,O-dimethyl phosphorothioate

Superlist Names

  • Methyl demeton
  • Phosphorothioic acid, O-(2-(ethylthio)ethyl) O,O-dimethyl ester, mixt. with S-(2-(ethylthio)ethyl) O,O-dimethyl phosphorothioate

Registry Numbers

CAS Registry Number

  • 8022-00-2

FDA UNII

  • B9PMD9I0FE

Other Registry Numbers

  • 12767-20-3
  • 8067-66-1

System Generated Number

  • 0008022002

Molecular Formulas

Molecular Formula

  • C6-H15-O3-P-S2.C6-H15-O3-P-S2

Molecular Formula Fragments

  • C6-H15-O3-P-S2
  • COMPONENT

Structure Descriptors

InChI

1S/2C6H15O3PS2/c1-4-11-5-6-12-10(7,8-2)9-3;1-4-12-6-5-9-10(11,7-2)8-3/h2*4-6H2,1-3H3

InChIKey

KPNPDRFFWQBXGT-UHFFFAOYSA-N

Smiles

CCSCCOP(=S)(OC)OC.CCSCCSP(=O)(OC)OC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LCLo inhalation 20mg/m3/4H (20mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 85, 1982.
cat LDLo oral 30mg/kg (30mg/kg)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 85, 1982.
mammal (species unspecified) LD50 unreported 80mg/kg (80mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 346, 1971.
mouse LD50 oral 26mg/kg (26mg/kg)   "Organophosphorus Pesticides: Organic and Biological Chemistry," Eto, M., Cleveland, OH, CRC Press, Inc., 1974Vol. -, Pg. 197, 1974.
mouse LD50 unreported 3500ug/kg (3.5mg/kg)   Pharmaceutical Chemistry Journal Vol. 3, Pg. 508, 1969.
rabbit LD50 oral 46mg/kg (46mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 27(8), Pg. 97, 1962.
rabbit LDLo skin 75mg/kg (75mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 2(5), Pg. 7, 1958.
rat LD50 intravenous 12mg/kg (12mg/kg)   British Journal of Industrial Medicine. Vol. 15, Pg. 158, 1958.
rat LD50 oral 75mg/kg (75mg/kg)   Farmakologiya i Toksikologiya Vol. 22, Pg. 259, 1959.
rat LD50 skin 300mg/kg (300mg/kg)   World Review of Pest Control. Vol. 9, Pg. 119, 1970.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 1.110 (none)   EST
Water Solubility 22 mg/L 20 EXP
Vapor Pressure 8.64E-04 mm Hg 25 EST
Henry's Law Constant 2.57E-09 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 4.72E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.