ChemicalBook >> CAS DataBase List >>PARAOXON

PARAOXON

CAS No.
311-45-5
Chemical Name:
PARAOXON
Synonyms
PARAOXON-ETHYL;E 600;PS610;ts219;ETICOL;PS-610;hc2072;Ts 219;HC 2072;Mintaco
CBNumber:
CB2463711
Molecular Formula:
C10H14NO6P
Molecular Weight:
275.2
MDL Number:
MFCD00007316
MOL File:
311-45-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 00:43:58

PARAOXON Properties

Melting point 300°C
Boiling point 169-170°C
Density 1.274 g/mL at 25 °C(lit.)
refractive index n20/D 1.51(lit.)
storage temp. 2-8°C
solubility Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form oil
color yellow
Odor slt odor
Water Solubility 3.627g/L(20 ºC)
Merck 13,7102
BRN 1915526
Henry's Law Constant 9.1×104 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Stability Moisture Sensitive
InChI 1S/C10H14NO6P/c1-3-15-18(14,16-4-2)17-10-7-5-9(6-8-10)11(12)13/h5-8H,3-4H2,1-2H3
InChIKey WYMSBXTXOHUIGT-UHFFFAOYSA-N
SMILES CCOP(=O)(OCC)Oc1ccc(cc1)[N+]([O-])=O
CAS DataBase Reference 311-45-5
EWG's Food Scores 1-3
FDA UNII Q9CX8P80JW
ATC code S01EB10
EPA Substance Registry System Paraoxon (311-45-5)
UNSPSC Code 41116107
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Environment (GHS09)
GHS06,GHS09
Signal word  Danger
Hazard statements  H300+H310-H410
Precautionary statements  P262-P273-P280-P301+P310+P330-P302+P352+P310
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  T+,N
Risk Statements  26/27/28-50
Safety Statements  36/37/39-45-61
RIDADR  UN 2810 6.1/PG 1
WGK Germany  3
RTECS  TC2275000
HazardClass  6.1(a)
PackingGroup  I
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
Hazard Classifications Acute Tox. 1 Dermal
Acute Tox. 1 Oral
Aquatic Acute 1
Aquatic Chronic 1
Hazardous Substances Data 311-45-5(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1.8 mg/kg (Pickering, Malone)

PARAOXON price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D9286 Paraoxon-ethyl ≥90%, oil 311-45-5 1g $591 2026-04-30 Buy
Sigma-Aldrich CRM36186 Paraoxon-ethyl certified reference material, TraceCERT?, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland 311-45-5 100MG $101 2026-04-30 Buy
Sigma-Aldrich 36186 Paraoxon-ethyl PESTANAL , analytical standard 311-45-5 100mg $102 2026-04-30 Buy
Usbiological P3107-72 Paraoxon (Diethyl p-Nitrophenyl Phosphate) ≥95% 311-45-5 250mg $403 2026-06-03 Buy
Usbiological P3107-72 Paraoxon (Diethyl p-Nitrophenyl Phosphate) ≥95% 311-45-5 1g $807 2026-06-03 Buy
Product number Packaging Price Buy
D9286 1g $591 Buy
CRM36186 100MG $101 Buy
36186 100mg $102 Buy
P3107-72 250mg $403 Buy
P3107-72 1g $807 Buy

PARAOXON Chemical Properties, Uses, Production

Chemical Properties

Oily Liquid

Chemical Properties

Paraoxon is an odorless, reddish-yellow oil. Fruity odor.

Uses

Insecticide.

Uses

A cholinesterase inhibitor

Uses

Paraoxon-ethyl has been used as a substratein paraoxonase (PON) activity assay. It has also been used as a lipase inhibitor to study the effects of anacetrapib on homotypic transfer from high density lipoproteinL3 (HDL3)toHDL2in vivo.

Definition

ChEBI: An aryl dialkyl phosphate where both the alkyl groups are ethyl and the aryl group is 4-nitrophenyl.

Synthesis Reference(s)

Tetrahedron Letters, 31, p. 3359, 1990 DOI: 10.1016/S0040-4039(00)89065-6

General Description

Reddish-yellow oily liquid with a faint fruity odor.

Reactivity Profile

Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Fire Hazard

Flash point data for PARAOXON are not available; however, PARAOXON is probably combustible.

Biochem/physiol Actions

Potent irreversible acetylcholinesterase inhibitor

Safety Profile

A deadly poison by ingestion,intraperitoneal, intravenous, subcutaneous, intramuscular,and parenteral routes. Mutation data reported. Humansystemic effects: coma, convulsions, miosis. Acholinesterase inhibitor. An insecticide. When heated todecompos

Potential Exposure

An organophosphate insecticide. Has been used as a medication.

Shipping

UN3018 Organophosphorus pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

Keep away from alkaline materials and strong oxidizers. Contact with oxidizers can cause the release of toxic oxides of phosphorus. May react violently with antimony(V) pentafluoride. Incompatible with lead diacetate, magnesium, silver nitrate. In the presence of strong reducing agents such as hydrides, organophosphates form highly toxic and flammable phosphine gas.

Waste Disposal

In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

PARAOXON Preparation Products And Raw materials

DIETHYL P-NITROPHENYL PHOSPHATE E 600 ESTER 25 FOSFAKOL ETICOL Chinorta Chinorto Diaethyl-p-nitrophenylphosphorsaeureester Diethyl paraoxon diethyl4-nitrophenylphosphate diethylparaoxon Diethyl-p-nitrofenyl ester kyseliny fosforecne Diethyl p-nitrophenyl phosphate, Paraoxon-ethyl O,O-Diethyl O-(4-nitrophenyl) phosphate, Diethyl p-nitrophenyl phosphate, Paraoxon-ethyl Paraoxon-ethyl,O,O-Diethyl O-(4-nitrophenyl) phosphate, Diethyl p-nitrophenyl phosphate, Paraoxon-ethyl 4-Nitrophenyl diethyl phosphate NSC 404110 Paraoxon-ethy PS610 PS-610 Paraoxon-ethyl Solution, 100ppm diethyl-p-nitrofenylesterkyselinyfosforecne diethyl-p-nitrofenylesterkyselinyfosforecne(czech) Diethylp-nitrophenylphospha E 600 (Pesticide) e600(pesticide) ENT 16,087 ent16,087 Ethyl Paraoxan Ethyl paraoxon Ethyl p-nitrophenyl ethylphosphate ethylparaoxon ethylp-nitrophenylethylphosphate HC 2072 hc2072 Mintaco mintisal Miotisal o,o’-diaethyl-p-nitrophenylphosphat o,o’diaethyl-p-nitrophenylphosphat O,O'Diaethyl-p-nitrophenylphosphat O,O-Diethyl O-p-nitrophenyl phosphate o,o-diethylo-p-nitrophenylphosphate O,O-Dietyl-O-p-nitrofenylfosfat o,o-dietyl-o-p-nitrofenylfosfat(czech) Oxyparathion Paraoxone Parathion ethyl oxon Parathion O-analog Parathion oxon Paroxan Pestox 101 pestox101 Phenol, p-nitro-, ester with diethyl phosphate Phosphachole Phosphakol Phosphonothioic acid, diethylparanitrophenyl ester phosphonothioicacid,diethylparanitrophenylester