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Chlorpyrifos

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Identification
Molecular formula
C9H11Cl3NO3PS
CAS number
2921-88-2
IUPAC name
dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane
State
State

Chlorpyrifos is typically found in a solid state at room temperature. It is often used in agriculture and pest control, available in formulations like granules, liquid concentrates, and wettable powders.

Melting point (Celsius)
41.50
Melting point (Kelvin)
314.65
Boiling point (Celsius)
160.00
Boiling point (Kelvin)
433.15
General information
Molecular weight
350.59g/mol
Molar mass
350.5930g/mol
Density
1.3980g/cm3
Appearence

Chlorpyrifos appears as a white to pale yellow crystalline solid. It has a strong, pungent odor that can be irritating to the eyes and respiratory system.

Comment on solubility

Solubility of Dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane

The solubility profile of dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane is an intriguing subject, reflective of its complex structure. The interactions between its various functional groups play a pivotal role in determining how this compound behaves in different solvents. Here are some key factors that influence its solubility:

  • Polarity: The presence of chlorinated aromatic rings can increase hydrophobic interactions, making the compound less soluble in polar solvents like water, while potentially enhancing solubility in non-polar organic solvents.
  • Functional Groups: The dimethoxy (-OCH3) groups may contribute to increased solubility in polar organic solvents due to their ability to hydrogen bond.
  • Intramolecular Interactions: Steric hindrance and resonance stabilization can impact the solubility by limiting the compound's ability to interact with solvent molecules.

Overall, the solubility of this phosphane derivative is likely to be moderate in organic solvents but low in aqueous systems. Proper testing in various solvents would be essential to accurately characterize its solubility behavior, as the compound's unique structure will create distinct solvation properties:

  • Conductivity testing to gauge ionization in solution.
  • Solubility assays in a range of solvents such as ethanol, methanol, and dichloromethane.
  • Impact of temperature variations on solubility, which may reveal additional insights.

In conclusion, understanding the solubility of dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane is crucial for its practical applications, particularly in pesticide formulations, where solubility can directly affect efficacy and distribution.

Interesting facts

Interesting Facts about Dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane

Dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane, often abbreviated as a complex phosphane compound, offers a fascinating glimpse into the world of organophosphorus chemistry. This compound is particularly notable for the following reasons:

  • Dual Functionality: The presence of both thioxo and methoxy groups allows this compound to act as a versatile building block in synthetic organic chemistry. This versatility is often harnessed in the design of agrochemicals and pharmaceuticals.
  • Distinctive Structure: The incorporation of the 3,5,6-trichloro-2-pyridyl group introduces significant electronic properties, influencing the reactivity and stability of the compound.
  • Important Role: Compounds like this play crucial roles in biological systems and can be involved in enzyme inhibition, making them valuable for drug discovery.
  • Environmental Considerations: Understanding the behavior of phosphorus-containing compounds is increasingly important due to their impact on both ecosystems and human health. This specific compound raises questions regarding its persistence and bioaccumulation in the environment.

In summary, the dimethoxy-thioxo-[(3,5,6-trichloro-2-pyridyl)oxy]-lambda5-phosphane compound exemplifies the intricate relationship between molecular structure and chemical properties. As the sciences of chemistry and biology converge, understanding such compounds becomes crucial for innovations in various fields, including medicine and agriculture.

Synonyms
Chlorpyrifos-methyl
5598-13-0
CHLORPYRIFOS METHYL
Caswell No. 179AA
Chlorpyrifos M
Cooper graincote
HSDB 6981
Chlorpyriphos-methyl [ISO-French]
Reldan F
EINECS 227-011-5
Chlorpyrifos-methyl [ANSI:BSI:ISO]
Chloropyrifos-methyl
EPA Pesticide Chemical Code 059102
BRN 1541078
CCRIS 8081
DTXSID6032352
UNII-O49S38267J
CHEBI:34632
AI3-27520
O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) phosphorothioate
O49S38267J
DTXCID4012352
O,O-dimethyl O-(3,5,6-trichloropyridin-2-yl) thiophosphate
CHLORPYRIFOS-METHYL [ISO]
CHLORPYRIFOS-METHYL [JAN]
O,O-dimethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate
O,O-dimethyl O-(3,5,6-trichloropyridin-2-yl) phosphorothioate
CHLORPYRIFOS-METHYL [HSDB]
NSC-60380
Chlorpyriphos-methyl (ISO-French)
O,O-Dimethyl O-3,5,6-trichloropyridin-2-yl-phosphorothioate
Chlorpyrifos-methyl (ANSI:BSI:ISO)
Chlorpyriphosmethyl
Chloropyriphosmethyl
Chlorpyrifos O,Odimethyl analog
OMS1155
O,O-Dimethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate (8CI)
O,O-Dimethyl O-(3,5,6-trichloro-2-pyridinyl) phosphorothioate (8CI)(9CI)
USEPA/OPP Pesticide Code: 059102
O,ODimethyl O(3,5,6trichloro2pyridyl)phosphorothioate
O,ODimethyl O3,5,6trichloro2pyridyl phosphorothioate
O,O-dimethyl O-(3,5,6-trichloro-2-pyridyl)phosphorothionate
O,ODimethyl O(3,5,6trichloro2pyridinyl) phosphorothioate (8CI)
O,ODimethyl O(3,5,6trichloro2pyridinyl) phosphorothioate (8CI)(9CI)
PHOSPHOROTHIOIC ACID, O,O-DIMETHYL-O-(3,5,6-TRICHLORO-2-PYRIDINYL) ESTER
227-011-5
hrbkvyfzanmgre-uhfffaoysa-n
Trichlormethylfos
Chloropyriphos-methyl
Methyl chlorpyrifos
Reldan
Methyl chlorpyriphos
Phosphorothioic acid, O,O-dimethyl O-(3,5,6-trichloro-2-pyridinyl) ester
Noltran
Zertell
Dursban methyl
Methyl dursban
Dowco 214
Chlorpyriphos-methyl
Reldan 50 EC
OMS-1155
ENT 27520
NSC 60380
Phosphorothioic acid, O,O-dimethyl O-(3,5,6-trichloro-2-pyridyl) ester
M 3196
O,O-Dimethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioate
O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl)phosphorothioate
O,O-Dimethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
Tumar
Methylchlorpyrifos
Chlorpyrifos-methyl 1000 microg/mL in Toluene
Chlorpyrifos-methyl 10 microg/mL in Cyclohexane
Chlorpyrifos-methyl 100 microg/mL in Cyclohexane
Chlorpyrifos-methyl D6, 98%, 98 atom%D
SCHEMBL27546
BIDD:ER0537
CHEMBL1370646
Tox21_300700
AKOS016010066
NCGC00163710-01
NCGC00163710-03
NCGC00163710-04
NCGC00163710-05
NCGC00254608-01
FC174984
CAS-5598-13-0
DB-052832
NS00000446
A830878
Q2964145
Chlorpyrifos-methyl, PESTANAL(R), analytical standard
O,O-DIMETHYL O-3,5,6-TRICHLOROPYRIDIN-2-YL PHOSPHOROTHIOATE
dimethoxy-sulfanylidene-(3,5,6-trichloropyridin-2-yl)oxy-lambda5-phosphane
dimethoxy-sulfanylidene-[(3,5,6-trichloro-2-pyridinyl)oxy]phosphorane
dimethoxy-sulfanylidene-[3,5,6-tris(chloranyl)pyridin-2-yl]oxy-$l^{5}-phosphane