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Substance Name: Monothiopyrophosphoric acid, tetraethyl ester
RN: 645-78-3
InChIKey: QPXWUAQRJLSJRT-UHFFFAOYSA-N

Molecular Formula

  • C8-H20-O6-P2-S

Molecular Weight

  • 306.254
 
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Names and Synonyms

Synonyms

  • 4-01-00-01350 (Beilstein Handbook Reference)
  • BRN 1714018
  • Ethyl thiopyrophosphate ((EtO)2OPOPS(OEt)2)
  • Fosarbin
  • Monothiono TEPP
  • MTST
  • O,O,O,O-Tetraethyl monothiodiphosphate
  • Phosarbin
  • Pirofos
  • Pyrophos
  • Tetraethyl monothionopyrophosphate
  • Tetraethyl monothiopyrophosphate
  • Tetraethyl thioonopyrophosphate
  • Thiodiphosphoric acid, tetraethyl ester

Systematic Names

  • Monothiopyrophosphoric acid, tetraethyl ester
  • Thiodiphosphoric acid ((HO)2P(O)OP(S)(OH)2), tetraethyl ester

Registry Numbers

CAS Registry Number

  • 645-78-3

System Generated Number

  • 0000645783

Structure Descriptors

InChI

1S/C8H20O6P2S/c1-5-10-15(9,11-6-2)14-16(17,12-7-3)13-8-4/h5-8H2,1-4H3

InChIKey

QPXWUAQRJLSJRT-UHFFFAOYSA-N

Smiles

S=P(OCC)(OCC)OP(=O)(OCC)OCC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 subcutaneous 450ug/kg (0.45mg/kg)   Farmakologiya i Toksikologiya Vol. 25, Pg. 725, 1962.
mouse LD50 unreported 700ug/kg (0.7mg/kg)   Pharmacological Reviews. Vol. 11, Pg. 636, 1959.
rat LD50 unreported 500ug/kg (0.5mg/kg)   "Organophosphorus Pesticides: Organic and Biological Chemistry," Eto, M., Cleveland, OH, CRC Press, Inc., 1974Vol. -, Pg. 265, 1974.