O,O-diethyl phosphorochloridothioate

An organic compound, C4H10ClO2PS, 188.616 g/mol. Boiling point 49 °C BELOW 1 MM HG; FP: BELOW -75 °C, density 1.196 AT 25 °C/25 °C, as published.

verified recordOrganic compound6 measured properties

Identifiers

Molecular formula: C₄H₁₀ClO₂PS
Molecular weight: 188.616 g/mol
Exact mass: 187.982765 g/mol
IUPAC name: chloro-diethoxy-sulfanylidene-lambda5-phosphane
SMILES: CCOP(=S)(Cl)OCC
InChI: InChI=1S/C4H10ClO2PS/c1-3-6-8(5,9)7-4-2/h3-4H2,1-2H3
InChIKey: KMJJJTCKNZYTEY-UHFFFAOYSA-N

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Measured properties

Published measurements, each with its source. Two readings of one property are both shown, in the units each used.

Boiling Point: 49 °C BELOW 1 MM HG; FP: BELOW -75 °Cmeasured · Hazardous Substances Data Bank (HSDB); >110 °Cmeasured · ILO-WHO International Chemical Safety Cards (ICSCs)
Density: 1.196 AT 25 °C/25 °Cmeasured · Hazardous Substances Data Bank (HSDB); Relative density (water = 1): 1.19measured · ILO-WHO International Chemical Safety Cards (ICSCs)
Solubility: INSOL IN WATER; SOL IN MOST ORG SOLVENTSmeasured · Hazardous Substances Data Bank (HSDB); Solubility in water: reactionmeasured · ILO-WHO International Chemical Safety Cards (ICSCs)
Vapor Pressure: Vapor pressure, Pa at 50 °C: 190measured · ILO-WHO International Chemical Safety Cards (ICSCs)
Flash Point: 92 °C c.c.measured · ILO-WHO International Chemical Safety Cards (ICSCs)
Refractive Index: INDEX OF REFRACTION: 1.4705 AT 25 °C/Dmeasured · Hawley, G.G. The Condensed Chemical Dictionary. 9th ed. New York: Van Nostrand Reinhold Co., 1977., p. 292

Calculated properties

Derived from the structure, not from a sample; kept apart from the measurements above.

Molecular weight: 188.61 g/molcalculated · reference compound database; Average mass of one molecule, from reference compound database.
Exact mass: 187.9827654 Dacalculated · reference compound database; Mass of the most common isotopic form.
XLogP3: 2.7calculated · reference compound database; Estimated oil/water partition, computed by reference compound database.
Polar surface area: 50.6 Å²calculated · reference compound database; Polar surface area as computed by reference compound database.
Complexity: 109calculated · reference compound database; A rough measure of how intricate the structure is.
H-bond donors: 0calculated · reference compound database
H-bond acceptors: 3calculated · reference compound database
logP: 2.5227calculated · chemistry engine; Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area: 18.46 Å²calculated · chemistry engine; Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors: 0calculated · chemistry engine; Atoms that can donate a hydrogen bond.
H-bond acceptors: 3calculated · chemistry engine; Atoms that can accept a hydrogen bond.
Rotatable bonds: 4calculated · chemistry engine; Single bonds the molecule can freely twist around.
Molar refractivity: 43.39 cm³/molcalculated · chemistry engine; Relates to the molecule's polarisability.
Fraction sp³ carbons: 1calculated · chemistry engine; Share of carbon atoms with tetrahedral bonding.
QED drug-likeness: 0.6321calculated · chemistry engine; Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

C Carbon4 atoms · 25.5% by mass
Cl Chlorine1 atom · 18.8% by mass
S Sulfur1 atom · 17.0% by mass
O Oxygen2 atoms · 17.0% by mass
P Phosphorus1 atom · 16.4% by mass
H Hydrogen10 atoms · 5.3% by mass

Percentages are of the molecular weight above, worked out the same way the molar mass calculator does it.

Structure

Heavy atoms, hydrogen excluded: 9
Total atoms, hydrogen included: 19
Rings: 0
Aromatic rings: 0
Stereocentres: 0
Formal charge: 0

The molecule in three dimensions

Rotate and inspect the atoms. Loaded only when you ask, so the page stays light.

The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.

Reactions it appears in

No documented reaction with a written procedure and a source involves O,O-diethyl phosphorochloridothioate yet.

Other names for it

The systematic name on this record is chloro-diethoxy-sulfanylidene-lambda5-phosphane.

The sources also call it O,O-Diethyl chlorothiophosphate, Ethyl PCT, Diethyl phosphorochloridothionate, Diethyl phosphorochlorothioate, Diethylchlorthiofosfat, Diethyl phosphorochloridothioate, Phosphorochloridothioic acid, O,O-diethyl ester, Diethyl phosphorothiochloridate, Diethyl thiophosphoric chloride, Diethyl phosphorothionochloridate, O,O-Diethyl chloridothionophosphate.

Structurally related

Nothing structurally close to O,O-diethyl phosphorochloridothioate has a page here yet.

Where these values came from

reference compound database17305
compound record
chemistry engine
structure perception

compound record.

What this page does not claim

Identifiers are copied from the source record, measured values are reported as published, and calculated values are marked as calculated. Nothing here is a hazard, purity or handling assessment — how the library is checked.