28443-69-8

Basic information

• Product Name: 4-AMINO-2,3,5-TRICHLOROPYRIDINE, 98
• Synonyms: 4-AMINO-2,3,5-TRICHLOROPYRIDINE, 98;4-amino-2,3,5-trichloropyridine;4-Pyridinamine, 2,3,5-trichloro-;Picloram-decarboxy;2,3,5-Trichloro-4-AMinopyridine
• CAS NO: 28443-69-8
• Molecular Formula: C₅H₃Cl₃N₂
• Molecular Weight: 197.44972
• EINECS: -0
• Mol File: 28443-69-8.mol

Chemical Properties

• Melting Point: 153-155 °C(lit.)
• Boiling Point: 294.4oC at 760 mmHg
• Flash Point: 131.8oC
• Appearance: /
• Density: 1.634g/cm3
• Vapor Pressure: 0.00163mmHg at 25°C
• Refractive Index: 1.635
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• PKA: -0.83±0.10(Predicted)
• CAS DataBase Reference: 4-AMINO-2,3,5-TRICHLOROPYRIDINE, 98(CAS DataBase Reference)
• NIST Chemistry Reference: 4-AMINO-2,3,5-TRICHLOROPYRIDINE, 98(28443-69-8)
• EPA Substance Registry System: 4-AMINO-2,3,5-TRICHLOROPYRIDINE, 98(28443-69-8)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 28443-69-8(Hazardous Substances Data)

Usage

Uses

2,3,5-Trichloropyridin-4-amine can be used inhibitors of PDE4.

InChI:InChI=1/C5H3Cl3N2/c6-2-1-10-5(8)3(7)4(2)9/h1H,(H2,9,10)

Upstream product

• 5005-62-9 4-amino-3,5,6-trichloro-2-trichloromethylpyridine 
• 55934-01-5 2,3,5-trichloropyridine 
• 94-75-7 2,4-Dichlorophenoxyacetic acid 
• 1918-02-1 picloram 

Downstream Products

• 2176-63-8 2,3,5,6-tetrachloro-pyridin-4-ylamine 
• 1970-40-7 2,3,5-Trichloro-4-pyridinol 

Relevant articles and documents

Synthesis of nitrogen-doped ZnO by sol-gel method: Characterization and its application on visible photocatalytic degradation of 2,4-D and picloram herbicides

In this work, nitrogen-doped ZnO material was synthesized by the sol-gel method using zinc acetate as the precursor and urea as the nitrogen source (15, 20, 25 and 30% wt.). For comparative purposes, bare ZnO was also prepared. The influence of N doping on structural, morphological, optical and photocatalytic properties was investigated. The synthesized catalysts were characterized by XRD, SEM-EDS, diffuse reflectance UV-Vis spectroscopy, BET and XPS analysis. The photocatalytic activity of N-doped ZnO catalysts was evaluated during the degradation of a mixture of herbicides (2,4-D and picloram) under visible radiation ≥400 nm. The photo-absorption wavelength range of the N-doped ZnO samples was shifted to longer wavelength compared to those of the unmodified ZnO. Among different amounts of dopant agent, the 30% N-doped ZnO material showed higher visible-light activity compared with pure ZnO. Several degradation by-products were identified by using HPLC and ESI-MS/MS. The enhancement of visible photocatalytic activity of the N-doped ZnO semiconductor could be mainly due to their capability in reducing the electron-hole pair recombination. This journal is

HYDROLYSIS OF 4-AMINO-3,5,6-TRICHLORO-2-TRICHLOROMETHYLPYRIDINE IN TRICHLOROACETIC ACID

The hydrolysis of 4-amino-3,5,6-trichloro-2-trichloromethylpyridine in trichloroacetic acid, which gives approximately 80-90percent yields of 4-amino-3,5,6-trichloropicolinic acid and opens up the prospect of a marked reduction in the difficulty utilized sulfuric acid effluent formed during the normally employed hydrolysis in sulfuric acid, was investigated.The acid was isolated by diluting the hydrolysis mass with water, filtering off the precipitate, and regenerating the trichloroacetic acid by distillation of the water-acid mother solution or direct distillation of the trichloroacetic acid.Versions of the hydrolysis with repeated recycling of the trichloroacetic acid and sulfuric acid after distillation of the water from the mother solution without purification and also the hydrolysis of technical 4-amino-3,5,6-trichloro-2-trichloromethylpyridine are of technological interest.