4499-34-7

Usage

Molecular weight

204.22 g/mol

Appearance

White crystalline solid

Solubility

Soluble in water, slightly soluble in ethanol

Melting point

330°C (626°F)

Density

1.54 g/cm3

Boiling point

Decomposes before boiling

pH

Basic (pH > 7)

Food additive

E383 in the European Union

Pharmaceutical industry

As a buffering agent and chelating agent

Consumer goods

Used in the production of various products

Polymer and plastic manufacturing

Key ingredient in certain resins and coatings

Corrosion inhibitor

In metalworking fluids

Stabilizer

In PVC compounds

Upstream product

• 124-38-9 carbon dioxide 
• 13527-17-8 dipotassium 1,3-benzenedicarboxylate 
• 582-25-2 Potassium benzoate 
• 120-61-6 1,4-benzenedicarboxylic acid dimethyl ester 
• 100-21-0 terephthalic acid 

Downstream Products

• 4662-22-0 Bis-triphenylsilyl-terephthalat 
• 17877-48-4 terephthalic acid bis-(trimethylsilanyl-methyl ester) 
• 119305-88-3 (C₆H₅)3PbOOCC₆H₄COOPb(C₆H₅)3 
• 742072-18-0 catena-poly[[aqua(2,2'-bipyridine-κ2N,N')manganese(II)]-μ-terephthalato-κ3O,O':O''] 
• 906372-42-7 [Co(3-methylpyrazole)2(5-methylpyrazole)2(terephthalato)]n 

Relevant academic research and scientific papers

GREEN, COPPER-CATALYZED DISPROPORTIONATION OF AROMATIC AND HETEROAROMATIC CARBOXYLATES TO DICARBOXYLATES

The present application relates to a process for preparation of a compound of Formula (I) and Formula (IV): wherein is as described herein; and wherein and R are as described herein.

Ultralong Phosphorescence from Organic Ionic Crystals under Ambient Conditions

A new type of materials, organic salts in the crystal state, have ultralong organic phosphorescence (UOP) under ambient conditions. The change of cations (NH4+, Na+, or K+) in these phosphors gives access to tun

Surface modified EuxLa1-xF3 nanoparticles as luminescent biomarkers: Still plenty of room at the bottom

Investigation of the formation and luminescent properties of surface modified bimetallic lanthanide fluorides and their use in bioimaging is described. We have shown that the solvent during the wet synthesis of EuF3 nanoparticles affects the na

Metal-dependent ribbon and self-penetrated topologies in nitroaromatic-sensing zinc and cadmium coordination polymers with terephthalate and dipyridylamide ligands

Hydrothermal reaction of the requisite metal nitrate, potassium terephthalate (K2tere) and the dipyridylamide 3-pyridylisonicotinamide (3-pina) afforded a pair of crystalline coordination polymers whose dimensionality and topology depends criti

An improved and practical synthesis of tranexamic acid

Tranexamic acid 1, a synthetic antifibrinolytic drug with the treatment being considered highly cost-effective in many countries, has been included in the WHO list of essential medicines. In this paper, we designed the synthesis of 1 via a novel seven-step route from the readily available starting material dimethyl terephthalate, performing with 99.6% purity in 59.2% overall yield. During the process, we successfully developed a direct and efficient method for the preparation of key intermediate methyl 4-(acetamidomethyl)benzoate by one-pot hydrogenation and acylation in acetic anhydride using Ni/Al2O3 as a catalyst. More importantly, it should be a straightforward and practical way to circumvent the usage of toxic reagents (CrO3, Cl2), solvent (CCl4), and expensive catalyst (PtO2), etc., that plagued the previous methodologies.

Metal-organic fireworks: MOFs as integrated structural scaffolds for pyrotechnic materials

A new approach to formulating pyrotechnic materials is presented whereby constituent ingredients are bound together in a solid-state lattice. This reduces the batch inconsistencies arising from the traditional approach of combining powders by ensuring the key ingredients are 'mixed' in appropriate quantities and are in intimate contact. Further benefits of these types of material are increased safety levels as well as simpler logistics, storage and manufacture. A systematic series of new frameworks comprising fuel and oxidiser agents (group 1 and 2 metal nodes & terephthalic acid derivatives as linkers) has been synthesised and structurally characterised. These new materials have been assessed for pyrotechnic effect by calorimetry and burn tests. Results indicate that these materials exhibit the desired pyrotechnic material properties and the effect can be correlated to the dimensionality of the structure. A new approach to formulating pyrotechnic materials is proposed whereby constituent ingredients are bound together in a solid-state lattice. A series of Metal-organic framework frameworks comprising fuel and oxidiser agents exhibits the desired properties of a pyrotechnic material and this effect is correlated to the dimensionality of the structure.

Noncovalent catch and release of carboxylates in water

Association constants of a bis-(acetylguanidinium)ferrocene dication to various (di)carboxylates were determined through UV-vis titrations. Association constant values greater than 104 M-1 were determined for both phthalate and maleate carboxylates to the bis-(acetylguanidinium)ferrocene salt in pure water. Density functional theory computations of the binding enthalpy of the rigid carboxylates for these complexes agree well with the experimentally determined association constants. Catch and release competitive binding experiments were done by NMR for the cation-carboxylate ion-pair complexes with cucurbit[7]uril, and they show dissociation of the ion-pair complex upon addition of cucurbit[7]uril and release of the free (di)carboxylate.

Synthesis and photophysical studies of self-assembled multicomponent supramolecular coordination prisms bearing porphyrin faces

Multicomponent self-assembly, wherein two unique donor precursors are combined with a single metal acceptor instead of the more common two-component assembly, can be achieved by selecting Lewis-basic sites and metal nodes that select for heteroligated coordination spheres. Platinum(II) ions show a thermodynamic preference for mixed pyridyl/carboxylate coordination environments and are thus suitable for such designs. The use of three or more unique building blocks increases the structural complexity of supramolecules. Herein, we describe the synthesis and characterization of rectangular prismatic supramolecular coordination complexes (SCCs) with two faces occupied by porphyrin molecules, motivated by the search for new multichromophore complexes with promising light-harvesting properties. These prisms are obtained from the self-assembly of a 90° Pt(II) acceptor with a meso-substituted tetrapyridylporphyrin (TPyP) and dicarboxylate ligands. The generality of this self-assembly reaction is demonstrated using five dicarboxylate ligands, two based on a rigid central phenyl ring and three alkyl-spaced variants, to form a total of five free-base and five Zn-metallated porphyrin prisms. All 10 SCCs are characterized by 31P and 1H multinuclear NMR spectroscopy and electrospray ionization mass spectrometry, confirming the structure of each self-assembly and the stoichiometry of formation. The photophysical properties of the resulting SCCs were investigated revealing that the absorption and emission properties of the free-base and metallated porphyrin prisms preserve the spectral features associated with free TPyP.

Parallel chain polyrotaxane, layer, and diamondoid divalent metal coordination polymers containing para aromatic dicarboxylate and bis(4-pyridylmethyl)piperazine ligands

Hydrothermal reaction of a closed-shell divalent metal salt, a para aromatic dicarboxylate precursor, and the long-spanning dipyridyl ligand bis(4-pyridylmethyl)piperazine (4-bpmp) afforded three new coordination polymers, which were structurally characte

Hydrogenation reactions

Catalytic reactions for the hydrogenation of alkenyl, alkynyl, aryl, cyano, imino, carbonyl and carboxyl groups and for the synthesis of ammonia are disclosed.