Molecular Formula: C₁₂H₁₇O₄PS₂
Molar mass: 320.36 g/mol
EINECS: 219-997-0
Density: 1.275 g/cm³
Flash Point: 183.3 °C
Index of Refraction: 1.564
Boiling Point: 379.5 °C at 760 mmHg
Vapour Pressure: 5.84E-06 mmHg at 25 °C
Melting point: 17～18 °C
Storage temp: 2-8 °C
Water solubility: 11mg / L
Appearance: White crystal(pure product), with aromatic smell
Solubility: Soluble in Acetone , Benzene and other organic solvents
Stable: Stable in acidic and neutral medium, easy to hydrolysis under alkaline conditions
Product categories of Phenthoate (CAS NO.2597-03-7): Insecticides;Organophorous Alphabetic;Pesticides
Structure of Phenthoate (CAS NO.2597-03-7):
                    
XLogP3-AA: 3.7
H-Bond Donor: 0
H-Bond Acceptor: 4
IUPAC Name: Ethyl 2-dimethoxyphosphinothioylsulfanyl-2-phenylacetate
Canonical SMILES: CCOC(=O)C(C1=CC=CC=C1)SP(=S)(OC)OC
InChI: InChI=1S/C12H17O4PS2/c1-4-16-12(13)11(10-8-6-5-7-9-10)19-17(18,14-2)15-3/h5-9,11H,4H2,1-3H3 
InChIKey: XAMUDJHXFNRLCY-UHFFFAOYSA-N

 Phenthoate (CAS NO.2597-03-7) is a drug with highly efficient, broad-spectrum, and low toxicity.It is within the non-absorbent as organic phosphorus insecticide, killing eggs' agent, and acaricide to be used to prevent a variety of pests on rice, cotton, vegetables, fruit, fuel, and other crops.

Preparation of α-Bromo ethyl benzene : at 30 °C, take more than 95% Phosphorus trichloride 70mol slowly into the mixture of192mol of Phenylacetic acid and 40L of the Dichloroethane .When the dropping is completed, refluxing for 30min and continue stirring 1h. Again, under the reflux condition within 1 ~ 1.5h, dropping 250mol anhydrous Ethanol . After it is completed, continue stirring for the esterification reaction for 1h. With the reaction solution by washing with caustic, extraction, neutralization, washing, solvent off, you can get the brown-red liquid 45kg, more than 91% concentration, the yield of 87.7%.
The synthesis of Phenthoate (CAS NO.2597-03-7): First take 160mol O, O-dimethyl dithiophosphate ( treated by Na₂CO₃ ) sodium solution, then adding Toluene 30L, and then heated to 40 ~ 45 °C, then after adding phase transfer catalyst, dropping 100mol α-Bromo ethyl benzene in the 0.5 ~ 1h. When it is completed, has the reaction for 4h at 65 °C under the insulation. By caustic washing, neutralizing, washing, and taking solvent off, you can get the red and yellow oily Phenthoate oil, content of 92%, the yield of 88%.

Poison by ingestion. Moderately toxic by skin contact. An insecticide used for control of crop pests and mosquitoes. When heated to decomposition it emits very toxic fumes of PO_x and SO_x. See also ESTERS.
 

Hazard Codes: XnN
Risk Statements:
R21/22:Harmful in contact with skin and if swallowed. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements:
S22:Do not breathe dust. 
S36:Wear suitable protective clothing. 
S37:Wear suitable gloves. 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.

 Phenthoate ,its cas register number is 2597-03-7.It also can be called Cidial ; Ethyl alpha-((dimethoxyphosphinothioyl)thio)benzeneacetate ; Elsan and Phendal .