Name: Edifenphos
SKU: 17109-49-8

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Basic Information

Molecular Structure:
CAS No.:	17109-49-8
Name:	Edifenphos
Article Data:	19

Formula:	C₁₄H₁₅O₂PS₂
Molecular Weight:	310.378
Synonyms:	BAY 78418;Bayer 78418;EDDP (pesticide);Edifenphpos;Ediphenphos;Ethyl S,S-diphenyl phosphorodithioate;Hinosan;O-Ethyl S,S-diphenyldithiophosphate;O-Ethyl S,S-diphenyl phosphorodithioate;S,S-Diphenyl O-ethylphosphorodithioate;
EINECS:	241-178-1
Density:	1.27 g/cm³
Melting Point:	25°C
Boiling Point:	430.2 °C at 760 mmHg
Flash Point:	214 °C
Solubility:	56 mg l-1 (20 °C)
Appearance:	Yellow to brown liquid with a characteristic odor.
Hazard Symbols:	T, N
Risk Codes:	21-23/25-43-50/53
Safety:	36/37-45-60-61
Transport Information:	UN 2810
PSA:	86.71000
LogP:	5.71560

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Chemistry

The molecular formula of O-ETHYL-S,S-DIPHENYL DITHIOPHOSPHATE(17109-49-8) is C₁₄H₁₅O₂PS₂ and its formula weight is 310.37g/mol.Its EINECS is 241-178-1.The chemical properties of industrial products is yellow to light brown transparent liquid, with a bad smell. Its liansport Information is UN 2810.The density of O-ETHYL-S,S-DIPHENYL DITHIOPHOSPHATE(17109-49-8) is 1.27 g/cm³and it has a melting point of 0-6°C .The boiling point is 430.2°C at 760 mmHg .The refractive index is about 1.618 and molar refractivity is 85.23cm³.Surface tension is 52.2 dyne/cm and enthalpy of vaporization is 65.91 kJ/mol.Molar volume is 243.2 cm³ and polarizability is 33.78 10-24cm³.Its flash point is 214 °C and the vapor pressenge is 3.32E-07 mmHg at 25°C .O-ETHYL-S,S-DIPHENYL DITHIOPHOSPHATE(17109-49-8) has the property of being dissolved in methanol, ether, chloroform, acetone, benzene, xylene and other organic solvents.It is not soluble in water.
The chemical synonyms of O-ETHYL-S,S-DIPHENYL DITHIOPHOSPHATE(17109-49-8) are BAY 78418;bay78418;BAYER 78418;bayer78418;Blastoff;Dithiophosphorsaeure-O-aethyl-S,S-diphenylester;and Ediphenophos.Its product categories is Chemotherapy agents; pesticides and fungicides. The molecular structure of O-ETHYL-S,S-DIPHENYL DITHIOPHOSPHATE(17109-49-8) is .

Uses

It can be used as prevention and control rice blast.

Production

The product is derived by the reaction of thiophenol and sodium dichloro derived phosphate ester .

Toxicity Data With Reference

1.	cyt-rat-ipr 3 mg/kg	MUREAV Mutation Research. 321 (1994),103.
2.	cyt-mus-ipr 30 mg/kg	CYTOAN Cytologia. 49 (1984),833.
3.	orl-rat LD50:100 mg/kg	OYYAA2 Oyo Yakuri. Pharmacometrics. 2 (1968),76.
4.	ihl-rat LC50:650 mg/m3/4H	JPIFAN Japan Pesticide Information.(17),(1973),25.
5.	ipr-rat LD50:26 mg/kg	TXAPA9 Toxicology and Applied Pharmacology. 23 (1972),519.
6.	orl-mus LD50:143 mg/kg	TOIZAG Toho Igakkai Zasshi. Journal of Medical Society of Toho University. 25 (1978),635.
7.	orl-rbt LD50:350 mg/kg	28ZEAL Pesticide Index. 5 (1976),91.
8.	orl-gpg LD50:350 mg/kg	28ZEAL Pesticide Index. 5 (1976),91.

Safety Profile

Poison by ingestion and intraperitoneal routes. Mutation data reported. A cholinesterase inhibitor. When heated to decomposition it emits very toxic fumes of SO_x and PO_x. See also PARATHION. Hazard symbols is T;N and risk codes is R21;R23/25;R43;R50/53.Safety description is S36/37;S45;S60;S61 and hazard class is 6.1(b).

Specification

Its extinguishing agent is sand, dry powder and foam.