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Ronnel

Alias: Ectoral; Dermafosu; Ronnel
Cat No.:V13981 Purity: ≥98%
Fenchlorphos is an organophosphate insecticide.
Ronnel
Ronnel Chemical Structure CAS No.: 299-84-3
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
Fenchlorphos is an organophosphate insecticide. Fenchlorphos is an inhibitor (blocker/antagonist) of acetylcholinesterase (AChE). Fenchlorphos can cause mitochondrial dysfunction.
Biological Activity I Assay Protocols (From Reference)
ADME/Pharmacokinetics
Absorption, Distribution and Excretion
Following administration of radioactive tricene, the highest concentrations of tricene and its derivatives in all tissues were reached after 12 hours. …After 7 days of oral administration, the residual amounts of tricene and its oxygen analogues were similar. The tissue residual time, from longest to shortest, was: liver, kidney, spleen, subcutaneous and mesenteric fat, heart, and brain. Organophosphorus pesticides are absorbed through the gastrointestinal tract, skin, or lungs and distributed throughout the body. They do not accumulate in any specific tissue. /Organophosphorus pesticides/ ...Six pesticides (diazinon, dimethoate, dithiophos, ethion, parathion, and rhodolphos)...have been recovered from various extracts, including alfalfa, lettuce, milk, chicken, halibut, bees, and urine, at concentrations down to the nanogram level.
...Fluorochlorophosphorus is stored in body fat...It can be detected in milk after oral administration in cattle...
Metabolisms/Metabolites
Trimethylbenzene and its oxygen analogs are hydrolyzed in rats, initially excreted in urine as phenyl phosphate esters. Thiophosphate. These are reduced...while the excretion of dimethyl phosphate increases.
...At a dose of 100 mg/kg, 42% of Ronnel is metabolized to demethylRonnel, compared to only 6% at a dose of 2 mg/kg. /In urine after oral administration in rats/
Two major pathways of Ronnel metabolism of roughly equal importance have been established: hydrolysis of o-phenol bonds and hydrolysis of o-methyl bonds to form secondary esters...
In vitro studies of rat brain and liver preparations have shown the formation of oxygen analogs of Ronnel, which is the source of Ronnel toxicity.
For more complete data on the metabolisms/metabolites of Ronnel (6 metabolites in total), please visit the HSDB record page.
Toxicity/Toxicokinetics
Interactions
Ronnell has not been shown to significantly enhance the effects of any commonly used organophosphate insecticides. Non-human Toxicity Values Male Rat Oral LD50: 1250 mg/kg Female Rat Oral LD50: 2630 mg/kg Dog Oral LD50: >500 mg/kg Rat Dermal LD50: 2000 mg/kg Rabbit Dermal Absorption LD50: 1000-2000 mg/kg
References

[1]. Teratogenic effects of the organophosphorus compound fenchlorphos in rabbits. Acta Vet Scand. 1983;24(3):295-304.

[2]. A pharmacological screen for compounds that rescue the developmental lethality of a Drosophila ATM mutant. PLoS One. 2018 Jan 16;13(1):e0190821.

Additional Infomation
Ronnel is a white to light brown crystalline solid. Melting point: 41°C, density: 1.49 g cm⁻³ at 25°C. It is a cholinesterase inhibitor with bactericidal activity (toxic to varying degrees in all animals). Used as an insecticide. It is readily degraded in the environment through hydrolysis and oxidative degradation.
Benzyl chlorophos is an organothiophosphate.
Ronnel is a synthetic organothiophosphate compound and also an organophosphate acetylcholinesterase inhibitor, used as an insecticide. It is a colorless or white to light brown crystalline solid with a thiol odor and can enter the human body through inhalation, ingestion, or contact.
Mechanism of Action
Most organophosphate pesticides are not effective esterase inhibitors before being activated by microsomal oxidases in the liver. Organophosphate pesticides
Ronnel is a weak inhibitor of cholinesterase. It primarily affects pseudoesterases in plasma, rather than true acetylcholinesterase in erythrocytes, regardless of whether it is a single or repeated oral administration.
Therapeutic Uses
Ronnell was the first systemic insecticide for animals and remains effective for oral and contact administration to livestock.
Veterinary Drug: Fluroxypyr is a systemic insecticide…for oral administration to cattle to control ectoparasites.
Veterinary Drug:…for the treatment of bovine psoriasis.
Veterinary Drug: Limited studies suggest it may be effective against Halbroni's disease in horses.
For more complete data on the therapeutic uses of Ronnell (10 in total), please visit the HSDB records page.
Drug Warnings
Veterinarian: Do not use on lactating dairy cows; discontinue use 10 days before calving; do not use on animals exposed to cholinesterase inhibitors.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C8H8CL3O3PS
Molecular Weight
321.53
Exact Mass
319.899
CAS #
299-84-3
PubChem CID
9298
Appearance
White to off-white solid powder
Density
1.5±0.1 g/cm3
Boiling Point
344.7±52.0 °C at 760 mmHg
Melting Point
35ºC
Flash Point
162.3±30.7 °C
Vapour Pressure
0.0±0.7 mmHg at 25°C
Index of Refraction
1.578
LogP
4.84
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
4
Rotatable Bond Count
4
Heavy Atom Count
16
Complexity
273
Defined Atom Stereocenter Count
0
InChi Key
JHJOOSLFWRRSGU-UHFFFAOYSA-N
InChi Code
InChI=1S/C8H8Cl3O3PS/c1-12-15(16,13-2)14-8-4-6(10)5(9)3-7(8)11/h3-4H,1-2H3
Chemical Name
dimethoxy-sulfanylidene-(2,4,5-trichlorophenoxy)-λ5-phosphane
Synonyms
Ectoral; Dermafosu; Ronnel
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~100 mg/mL (~310.99 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.77 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (7.77 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (7.77 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.1101 mL 15.5506 mL 31.1013 mL
5 mM 0.6220 mL 3.1101 mL 6.2203 mL
10 mM 0.3110 mL 1.5551 mL 3.1101 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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