14748-69-7

Basic information

• Product Name: 1-methyl-1H-naphtho[1,8-de][1,2,3]triazine
• Synonyms: 1H-Naphtho[1,8-de]-1,2,3-triazine, 1-methyl-
• CAS NO: 14748-69-7
• Molecular Formula: C₁₁H₉N₃
• Molecular Weight: 183.2093
• Mol File: 14748-69-7.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 344.6°C at 760 mmHg
• Flash Point: 162.2°C
• Density: 1.27g/cm³
• Vapor Pressure: 6.5E-05mmHg at 25°C
• Refractive Index: 1.7
• PKA: -2.83±0.20(Predicted)
• CAS DataBase Reference: 1-methyl-1H-naphtho[1,8-de][1,2,3]triazine(CAS DataBase Reference)
• NIST Chemistry Reference: 1-methyl-1H-naphtho[1,8-de][1,2,3]triazine(14748-69-7)
• EPA Substance Registry System: 1-methyl-1H-naphtho[1,8-de][1,2,3]triazine(14748-69-7)

Safety Data

• Hazardous Substances Data: 14748-69-7(Hazardous Substances Data)

Usage

Chemical class

Triazines

Usage

Herbicide in agriculture

Target weeds

Broadleaf and grassy weeds

Crops

Soybeans, potatoes, tomatoes, sugar beets

Mechanism of action

Inhibits photosynthesis in target plants

Type of herbicide

Systemic (absorbed and translocated within the plant)

Precautions

Careful monitoring to prevent off-target damage and environmental contamination.

Upstream product

• 479-27-6 naphthalene-1,8-diamine 
• 77-78-1 dimethyl sulfate 
• 204-03-5 1H-naphtho[1,8-de][1,2,3]triazine 
• 333-27-7 methyl trifluoromethanesulfonate 

Relevant articles and documents

Permethylated salts and radicals derived from azo peri-naphthalenes

By careful choice of reaction conditions 1-methylnaphtho[1,8-de]-1,2,3- triazine and 1,3-dimethylnaphtho[1,8-de]-1,2,3-triazinium triflate are readily prepared by the alkylation of 1Hnaphtho[1,8-de]-1,2,3-triazine. The electronic spectra for these bathochromically shifted dyes are reported for a range of solvents as are their vibrational spectra and theoretical structures from density functional theory, B3LYP/6-311++G**. The 15N substitution into the middle nitrogen atom allows for the identification of strong azine bands in the IR and Raman spectra as well as in the 15N NMR spectrum. X-ray crystallography is used to characterize the solid-state structures of two of these new triazine derivatives and these structures are used to benchmark the theoretical and spectroscopic discussions. The corresponding 1,3-dimethyltriazinium radical is prepared and characterized by cyclic voltammetry, spectroelectrochemistry, and EPR spectroscopy. Unlike the related transient 1,2,4-triazene radicals, the 1,3-dimethyl-1,2,3-naphthotriazyl radical is markedly more stable.