38926-45-3

Basic information

• Product Name: Pyridine-2,3,5,6-Tetraamine
• Synonyms: Pyridine-2,3,5,6-Tetraamine;2,3,5,6-tetraaminopyridine;2,3,5,6-Pyridinetetramine (TAP;2,3,5,6-Pyridinetetramine
• CAS NO: 38926-45-3
• Molecular Formula: C₅H₉N₅
• Molecular Weight: 139.15846
• EINECS: 231-298-2
• Mol File: 38926-45-3.mol
• Article Data: 3

Chemical Properties

• Melting Point: >360 °C (decomp)
• Boiling Point: 485.3±40.0 °C(Predicted)
• Appearance: /
• Density: 1.516±0.06 g/cm3(Predicted)
• PKA: 5.78±0.50(Predicted)
• CAS DataBase Reference: Pyridine-2,3,5,6-Tetraamine(CAS DataBase Reference)
• NIST Chemistry Reference: Pyridine-2,3,5,6-Tetraamine(38926-45-3)
• EPA Substance Registry System: Pyridine-2,3,5,6-Tetraamine(38926-45-3)

Safety Data

• Hazardous Substances Data: 38926-45-3(Hazardous Substances Data)

Usage

General Description

Pyridine-2,3,5,6-tetraamine is a chemical compound with the molecular formula C5H9N5. It is a derivative of pyridine, a six-membered heterocyclic ring containing five carbon atoms and one nitrogen atom. Pyridine-2,3,5,6-Tetraamine is a versatile ligand used in coordination chemistry and metal ion complexation. It can also be used as a reducing agent and in the synthesis of various organic compounds. Pyridine-2,3,5,6-tetraamine is a solid at room temperature, with a white to light yellow color, and is soluble in water. Its properties make it useful in a variety of chemical applications and research endeavors.

Upstream product

• 34981-11-8 2,6-diamino-3,5-dinitropyridine 

Downstream Products

• 167304-75-8 tetraaminopyridinium dihydroxy terephthalate 

Relevant articles and documents

2. 3, 5, 6 - Tetraaminopyridine preparation method

The invention discloses a method for 2, 3, 5, 6 - four-aminopyridine preparation method. The invention relates to 2, 6 - diamino - 3, 5 - dinitro-pyridine as raw materials, in order to water-free formic acid binds reducing agent, in the presence of Pd/C catalyst reduction reaction, thus under normal pressure to obtain 2, 3, 5, 6 - four-aminopyridine. For the preparation process of the invention 2, 3, 5, 6 — four-aminopyridine, purity of 99% or more, the yield is 85 - 95%. The invention compared with the prior art, the reaction carried out at normal pressure, to avoid the high pressure catalytic hydrogenation reduction of the safety factor, the mild conditions in the reaction process, safe and convenient operation, and high product purity, it is suitable for industrial production.

PROCESSES FOR PREPARING MONOMER COMPLEXES

Disclosed are processes for preparing monomer complexes that include contacting 2,3,5,6-tetraaminopyridine free base in water with 2,5-dihydroxy terephthalic acid dipotassium salt to form an aqueous mixture, and adjusting the pH of the aqueous mixture to