30614-22-3

Basic information

• Product Name: PIRIMICARB-DESMETHYL
• Synonyms: PIRIMICARB-DESMETHYL;PIRIMICARB-DEMETHYL;Carbamic acid, dimethyl-, 5,6-dimethyl-2-(methylamino)-4-pyrimidinyl ester;Desmethyl-pirimicarb, Pestanal;Dimethylcarbamic acid 5,6-dimethyl-2-(methylamino)-4-pyrimidinyl ester;Pirimicarb III;5,6-diMethyl-2-(MethylaMino)pyriMidin-4-yl diMethylcarbaMate
• CAS NO: 30614-22-3
• Molecular Formula: C₁₀H₁₆N₄O₂
• Molecular Weight: 224.26
• Mol File: 30614-22-3.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 377.6°Cat760mmHg
• Flash Point: 182.2°C
• Appearance: /
• Density: 1.184g/cm³
• Vapor Pressure: 6.65E-06mmHg at 25°C
• Refractive Index: 1.562
• Storage Temp.: 2-8°C
• CAS DataBase Reference: PIRIMICARB-DESMETHYL(CAS DataBase Reference)
• NIST Chemistry Reference: PIRIMICARB-DESMETHYL(30614-22-3)
• EPA Substance Registry System: PIRIMICARB-DESMETHYL(30614-22-3)

Safety Data

• Hazard Codes: T,N
• Statements: 25-36/37/38-50/53
• Safety Statements: 26-45-60-61
• RIDADR: UN2810 6.1/PG 2
• WGK Germany: 3
• Hazardous Substances Data: 30614-22-3(Hazardous Substances Data)

Usage

General Description

PIRIMICARB-DESMETHYL is a metabolite of the insecticide pirimicarb, commonly used to control aphids and other harmful insects in agricultural crops. It is a potent acetylcholinesterase inhibitor, meaning it prevents the breakdown of the neurotransmitter acetylcholine in the nervous system, leading to overstimulation of nerve cells. This can result in paralysis and eventually death of the targeted insects. PIRIMICARB-DESMETHYL has been found to persist in the environment and has the potential to accumulate in non-target organisms, posing a risk to beneficial insects and other wildlife. It is important to handle and use this chemical with caution to minimize its impact on non-target organisms and the environment.

InChI:InChI=1/C10H16N4O2/c1-6-7(2)12-9(11-3)13-8(6)16-10(15)14(4)5/h1-5H3,(H,11,12,13)

Upstream product

• 23103-98-2 pirimicarb 

Relevant articles and documents

Environmental application of an industrial waste as catalyst for the electro-Fenton-like treatment of organic pollutants

The application of acid mine drainage sludge (AMDS), an industrial waste with high metal content, as catalyst for the electro-Fenton-like technology on the treatment of organic polluted effluents has been investigated. The study has demonstrated the potential use of this waste using dye Lissamine Green B as a model contaminant, which allowed the optimization of sludge dosage and pH. AMDS proved to perform a high decoloration rate at pH 2, however, acidic conditions favored metal leaching. Alginate gel beads were selected to immobilize AMDS and to avoid metal release and the wash out of the reactor operating in continuous mode. This developed catalyst showed high reliability and efficiency in successive batches. The efficacy of the established treatment was also verified on the degradation of pesticide pirimicarb and a degradation pathway was determined by LC-MS studies.

Photodegradation of Pesticides. Photolysis Rates and Half-Life of Pirimicarb and Its Metabolites in Reactions in Water and in Solid Phase

The photodegradation of Pirimicarb under three different artificial lights and sunlight was studied in water solutions (buffers pH 5, 6, and 7) and in solid phase. Five photocompounds were formed in solution and two in solid phase. Pirimicarb undergoes fast degradation under all conditions. In buffer solutions it first gave three compounds with a kinetic parallel process. These compounds were assigned the structures of 2-[(methylformyl)amino]-5,6-dimethylpyrimidin-4-yl dimethylcarbamate (II), 2-(methylamino)-5,6-dimethylpyrimidin-4-yl dimethylcarbamate (III), and 2-(dimethylamino)-5,6-dimethyl-4-hydroxypyrimidine (V). V and II were stable to further photolysis (the latter with t1/2 = 849 h) whereas III undergoes further degradation to 2-amino-5,6-dimethylpyrimidin-4-yl dimethylcarbamate (IV), and to 2-(formylamino)-5,6-dimethylpyrimidin-4-yl dimethylcarbamate (IX). Both compounds were photodegraded to undetectable species, and IX shows a very high t1/2 (48 h). A different behavior was found in solid phase, and only II and III were formed. A kinetic parallel process was demonstrated. The environmental t1/2 and t1/100 calculated for Pirimicarb and its photoproducts suggest their reduced persistence in natural waters.