EMPTA
Title: EMPTA
CAS Registry Number: 18005-40-8
CAS Name: Methylphosphonothioic acid O-ethyl ester
Molecular Formula: C3H9O2PS
Molecular Weight: 140.14
Percent Composition: C 25.71%, H 6.47%, O 22.83%, P 22.10%, S 22.88%
Literature References: Degradation product and precursor of VX, inhibits cholinesterase. Prepn: M. I. Kabachnik et al., Dokl. Akad. Nauk SSSR 104, 861 (1955), C.A. 50, 11240a (1956); F. W. Hoffmann et al., J. Am. Chem. Soc. 81, 148 (1959). Structure: H. Christol et al., C.R. Seances Acad. Sci. Ser. C 265, 1511 (1967). NMR: M. Mikolajczyk et al., J. Am. Chem. Soc. 100, 7003 (1978). Mass spec.: E. R. J. Wils, Fresenius J. Anal. Chem. 338, 22 (1990). Ionspray-MS determn in water: R. Kostiainen et al., J. Chromatogr. 634, 113 (1993).
Properties: Yellowish oil, bp0.22mm 63°. nD25 1.4912. d425 1.1735.
Boiling point: bp0.22mm 63°
Index of refraction: nD25 1.4912
Density: d425 1.1735
Use: Precursor to chemical warfare agents.

Others monographs:
TriazolamViologenIndium Trichloride3,20-Pregnanedione
o-PhenylenediaminePhenethylamineAmidinomycinHelvolic Acid
Dimethylacetalo-Aminobenzoic AcidThiabendazoleCetyl Lactate
CinoxacinMethopterinBenzenesulfonic AcidTCMTB
©2016 DrugLead US FDA&EMEA