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Substance Name: Endothion [ISO]
RN: 2778-04-3
UNII: V047DQ6B7X
InChIKey: YCAGGFXSFQFVQL-UHFFFAOYSA-N

Molecular Formula

  • C9-H13-O6-P-S

Molecular Weight

  • 280.2357
 

Classification Codes

Classification Codes

  • Acaricide
  • Agricultural Chemical
  • Insecticide
  • Out-Dated Pesticide

Superlist Classification Code

  • Threshold Planning Quantity (TPQ) = 500/10000 lb
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Names and Synonyms

Results Name

  • Endothion [ISO]

Name of Substance

  • Endothion
  • Endothion [ISO]

Synonyms

  • 4-18-00-01160 (Beilstein Handbook Reference)
  • 5-Methoxy-2-(dimethoxyphosphinylthiomethyl) pyrone-4
  • 5-Methoxy-2-(dimethoxyphosphinylthiomethyl)pyrone-4
  • 7175 RP
  • AC-18,737
  • AI3-24653
  • BRN 0252435
  • Caswell No. 422
  • EINECS 220-472-3
  • Endocid
  • Endocide
  • Endothion
  • ENT 24,653
  • EPA Pesticide Chemical Code 422100
  • Exothion
  • FMC 5767
  • HSDB 1706
  • NIA-5767
  • Niagara 5767
  • O,O-Dimethyl phosphorothioate S-ester with 2-(mercaptomethyl)-5-methoxy-4H-pyran-4-one
  • O,O-Dimethyl S-(5-methoxy-4-oxo-4H-pyran-2-yl) phosphorothioate
  • O,O-Dimethyl S-(5-methoxy-4-oxo-4H-pyran-2-yl)phosphorothioate
  • O,O-Dimethyl S-(5-methoxypyronyl-2-methyl) thiophosphate
  • O,O-Dimethyl-S-((5-methoxy-pyron-2-yl)-methyl)-thiolphosphat
  • O,O-Dimethyl-S-((5-methoxy-pyron-2-yl)-methyl)-thiolphosphat [German]
  • Phosphate 100
  • Phosphopyron
  • Phosphopyrone
  • Phosphorothioic acid, O,O-dimethyl ester, S-ester with 2-(mercaptomethyl)-5-methoxy-4H-pyran-4-one
  • Phosphorothioic acid, S-((5-methoxy-4-oxo-4H-pyran-2-yl)methyl) O,O-dimethyl ester
  • S-((5-Methoxy-4-oxo-4H-pyran-2-yl)methyl) O,O-dimethyl phosphorothioate
  • S-((5-Methoxy-4H-pyron-2-yl)-methyl)-O,O-dimethyl-monothiofosfaat
  • S-((5-Methoxy-4H-pyron-2-yl)-methyl)-O,O-dimethyl-monothiofosfaat [Dutch]
  • S-((5-Methoxy-4H-pyron-2-yl)-methyl)-O,O-dimethyl-monothiophosphat
  • S-((5-Methoxy-4H-pyron-2-yl)-methyl)-O,O-dimethyl-monothiophosphat [German]
  • S-((5-Metossi-4H-piron-2-IL)-metil)-O,O-dimetil-monotiofosfato
  • S-((5-Metossi-4H-piron-2-IL)-metil)-O,O-dimetil-monotiofosfato [Italian]
  • S-(5-Methoxy-4-pyron-2-ylmethyl) dimethyl phosphorothioate
  • S-(5-Methoxy-4-pyron-2-ylmethyl) dimethyl phosphorothiolate
  • S-5-Methoxy-4-oxopyran-2-ylmethyl dimethyl phosphorothioate
  • S-5-Methoxy-4-pyron-2-ylmethyl O,O-dimethyl phosphorothioate
  • Thiophosphate de O,O-dimethyle et de S-((5-methoxy-4-pyronyl)-methyle)
  • Thiophosphate de O,O-dimethyle et de S-((5-methoxy-4-pyronyl)-methyle) [French]
  • UNII-V047DQ6B7X

Systematic Names

  • Endothion
  • Phosphorothioic acid, O,O-dimethyl ester, S-ester with 2-(mercaptomethyl)-5-methoxy-4H-pyran-4-one
  • Phosphorothioic acid, S-((5-methoxy-4-oxo-4H-pyran-2-yl)methyl) O,O-dimethyl ester

Superlist Name

  • Endothion

Registry Numbers

CAS Registry Number

  • 2778-04-3

FDA UNII

  • V047DQ6B7X

System Generated Number

  • 0002778043

Structure Descriptors

InChI

1S/C9H13O6PS/c1-12-9-5-15-7(4-8(9)10)6-17-16(11,13-2)14-3/h4-5H,6H2,1-3H3

InChIKey

YCAGGFXSFQFVQL-UHFFFAOYSA-N

Smiles

COC1=COC(=CC1=O)CSP(=O)(OC)OC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 88600ug/kg (88.6mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Toxicology and Applied Pharmacology. Vol. 11, Pg. 49, 1967.
guinea pig LD50 oral 60mg/kg (60mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 473, 1966.
mouse LD50 oral 17mg/kg (17mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 10, 1966.
rat LD50 oral 23mg/kg (23mg/kg)   World Review of Pest Control. Vol. 9, Pg. 119, 1970.
rat LD50 skin 130mg/kg (130mg/kg)   Pharmaceutical Journal. Vol. 185, Pg. 361, 1960.
rat LD50 unreported 30mg/kg (30mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 343, 1971.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) -0.310 (none)   EST
Water Solubility 1.50E+06 mg/L   EXP
Vapor Pressure 5.69E-06 mm Hg 25 EST
Henry's Law Constant 6.46E-12 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 9.55E-11 cm3/molecule-sec 25 EST

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