116668-76-9

Basic information

• Product Name: pyridine-2,3,5-tricarboxylic acid
• Synonyms: 2,3,5-pyridinetricarboxylic acid; Pyridine-2,3,5-tricarboxylic acid
• CAS NO: 116668-76-9
• Molecular Formula: C₈H₅NO₆
• Molecular Weight: 211.1284
• Mol File: 116668-76-9.mol

Chemical Properties

• Boiling Point: 555.9°C at 760 mmHg
• Flash Point: 290°C
• Density: 1.755g/cm³
• Vapor Pressure: 3.41E-13mmHg at 25°C
• Refractive Index: 1.674
• CAS DataBase Reference: pyridine-2,3,5-tricarboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: pyridine-2,3,5-tricarboxylic acid(116668-76-9)
• EPA Substance Registry System: pyridine-2,3,5-tricarboxylic acid(116668-76-9)

Safety Data

• Hazardous Substances Data: 116668-76-9(Hazardous Substances Data)

Upstream product

• 695-98-7 2,3,5-trimethyl-pyridine 
• 1123-96-2 2-ethyl-3,5-dimethylpyridine 

Relevant articles and documents

Syntheses and structures of d9 and d10 metal complexes with 2,3,5-pyridinetricarboxylic acid

Three complexes with different structures were obtained by reacting 2,3,5-pyridinetricarboxylic acid (H3pta) with d9 (Cu2+) and d10 (Zn2+, Ag+) ions in water at room temperature. The complexes of [Cu(H2pta)2(H2O)2]·2H2O (1) and [Zn2(Hpta)2(H2O)6]·4H2O (2) are mononuclear and binuclear structures, respectively; while [Ag(H2pta)(H2O)]n (3) is a helical 1D chain coordination polymer. A double chain was further formed in 3 by the weak interaction between oxygen atoms and Ag(I) ions. Through hydrogen bonds the three complexes constructed corresponding 3D network structures. The three complexes were characterized by elemental analyses, IR and single-crystal X-ray diffraction analyses. In addition, TGA, XRD and fluorescence spectra determinations were performed for compounds 2 and 3.

AZAPHTHALOCYANINES AND THEIR USE IN INK-JET PRINTING

Azaphthalocyanine compounds of Formula (1) and salts thereof: wherein: MAzPc represents a azaphthalocyanine nucleus of formula (A): M is 2H, Cu or Ni; each P is independently CH or N; R1, R2 are independently H or optionally substituted alkyl; R3 is optionally substituted hydrocarbyl; y is greater than 0 and less than 4; z is greater than 0 and less than 4; and the sum of y+z is in the range of from 1 to 4; 15 provided that at least one P is N in any one of the four component rings of the azaphthalocyanine nucleus. Also compositions, inks, printing processes, printed materials and ink-jet cartridges.