Trimesic acid

Trimesic acid, also known as benzene-1,3,5-tricarboxylic acid, is an organic compound with the formula C₆H₃(CO₂H)₃. It is one of three isomers of benzenetricarboxylic acid.^[3] A colorless solid, trimesic acid has some commercial value as a precursor to some plasticizers.^[4]

Trimesic acid

Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name Benzene-1,3,5-tricarboxylic acid
Identifiers
CAS Number	554-95-0 Y
3D model (JSmol)	Interactive image
Abbreviations	TMA
Beilstein Reference	2053080
ChEBI	CHEBI:46032 Y
ChEMBL	ChEMBL77562 Y
ChemSpider	10665 Y
DrugBank	DB08632 Y
ECHA InfoCard	100.008.253
EC Number	209-077-7
Gmelin Reference	51147
PubChem CID	11138
UNII	OU36OO5MTN Y
CompTox Dashboard (EPA)	DTXSID8021488
InChI InChI=1S/C9H6O6/c10-7(11)4-1-5(8(12)13)3-6(2-4)9(14)15/h1-3H,(H,10,11)(H,12,13)(H,14,15) Y Key: QMKYBPDZANOJGF-UHFFFAOYSA-N Y InChI=1/C9H6O6/c10-7(11)4-1-5(8(12)13)3-6(2-4)9(14)15/h1-3H,(H,10,11)(H,12,13)(H,14,15) Key: QMKYBPDZANOJGF-UHFFFAOYAC
SMILES c1c(cc(cc1C(=O)O)C(=O)O)C(=O)O
Properties
Chemical formula	C9H6O6
Molar mass	210.14034
Acidity (pKa)	3.12, 3.89, 4.70[1]
Hazards[2]
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Safety data sheet (SDS)	Oxford MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Trimesic acid can be combined with para-hydroxypyridine to make a water-based gel, stable up to 95 °C.^[5]

Trimesic acid crystallizes from water to form a hydrogen-bonded hydrated network with wide unidimensional empty channels.^[6][7]

See also

• Trimellitic acid (1,2,4-benzenetricarboxylic acid)
• Hemimellitic acid (1,2,3-benzenetricarboxylic acid)