136191-64-5

Basic information

• Product Name: PYRIMINOBAC-METHYL (E)
• Synonyms: kih-6127;pyriminobac-methyl (e-type)(bsi,iso);pyriminobac-methyl (z-type)(bsi,iso);METHYL2-(4,6-DIMETHOXY-2-PYRIMIXINYLOXY)-6-[1-(METHOXYIMINO)ETHYL]BENZOATE;Benzoic acid, 2-[(4,6-dimethoxy-2-pyrimidinyl)oxy]-6-[1-(methoxyimino)ethyl]-, methyl ester;methyl 2-((4,6-dimethoxypyrimidin-2-yl)oxy)-6-(1-(methoxyimino)ethyl)benzoate
• CAS NO: 136191-64-5
• Molecular Formula: C17H19N3O6
• Molecular Weight: 361.352
• Mol File: 136191-64-5.mol
• Article Data: 3

Chemical Properties

• Melting Point: 107 °C
• Boiling Point: 536.3 ºC at 760 mmHg
• Flash Point: 278.1ºC
• Appearance: /
• Density: 1.25 g/cm3
• Vapor Pressure: 1.42E-11mmHg at 25°C
• Refractive Index: 1.548
• PKA: -0.04±0.30(Predicted)
• CAS DataBase Reference: PYRIMINOBAC-METHYL (E)(CAS DataBase Reference)
• NIST Chemistry Reference: PYRIMINOBAC-METHYL (E)(136191-64-5)
• EPA Substance Registry System: PYRIMINOBAC-METHYL (E)(136191-64-5)

Safety Data

• Hazardous Substances Data: 136191-64-5(Hazardous Substances Data)

Usage

General Description

PYRIMINOBAC-METHYL (E) is a selective herbicide that is commonly used to control grass weeds in cereal crops. It works by inhibiting the enzyme acetolactate synthase (ALS) in the target plants, ultimately disrupting their ability to produce essential amino acids. This leads to the death of the weeds while leaving the cereal crops unharmed. PYRIMINOBAC-METHYL (E) has low toxicity to mammals, birds, and aquatic organisms, making it a relatively safe and effective option for weed control in agricultural settings. However, it is important to use this chemical in accordance with label instructions and safety guidelines to minimize potential environmental and human health impacts.

InChI:InChI=1/C17H19N3O6/c1-10(20-25-5)11-7-6-8-12(15(11)16(21)24-4)26-17-18-13(22-2)9-14(19-17)23-3/h6-9H,1-5H3

Upstream product

• 99512-66-0 O-acetyl-salicylic acid 
• 113583-35-0 4,6-dimethoxypyrimidin-2-yl methyl sulfone 
• 136192-81-9 Methyl 6-[1-(methyloximino)ethyl]salicylate 
• 57777-75-0 methanolamine hydrochloride 
• 136192-67-1 Methyl 2-acetyl-6-[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoate 

Relevant articles and documents

Method for synthesizing herbicide pyriminobac-methyl in paddy field

The invention belongs to the field of fine chemical engineering, and particularly relates to a preparation method of herbicide pyriminobac-methyl for a paddy fields. The preparation method comprises the following steps: synthesizing 3-hydroxy phthalic anhydride by using 3-chlorophthalic anhydride as a new raw material, protecting carbonyl by using diethyl malonate, hydrolyzing to obtain 2-acetyl-6-hydroxy benzoic acid, and esterifying to obtain 2-acetyl-6-hydroxy methyl benzoate; then carrying out imidization reaction with methoxyamine hydrochloride to obtain 2-hydroxy-6-(1-methoxy iminoethyl-methyl)-benzoate, and finally, condensing with 2-tosyl-4, 6-dimethoxypyrimidine to obtain pyriminobac-methyl. In the process of preparing pyriminobac-methyl, high-risk reagents such as n-butyllithiumare avoided, a large amount of wastewater generated by diazotization is avoided, the income is increased, and the environment is protected.

Pyrimidine derivatives and herbicidal composition containing the same

A pyrimidine or triazine derivative and its salt, said pyrimidine or triazine derivative having the formula: STR1 wherein R represents a group of the formula OR3 {wherein R3 represents a hydrogen atom, an alkyl gorup, etc.}, a group