p-Toluic acid

p-Toluic acid
Names
	IUPAC name 4-Methylbenzoic acid
	Other names para-toluic acid; p-toluic acid; para-methylbenzoic acid; p-methylbenzoic acid; toluene-4-carboxylic acid; crithminic acid
Identifiers
CAS Number	99-94-5 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL21708 ;
ChemSpider	7190 ;
ECHA InfoCard	100.002.549
EC Number	202-803-3;
KEGG	C01454 ;
CompTox Dashboard (EPA)	DTXSID6021618 ;
	InChI InChI=1S/C8H8O2/c1-6-2-4-7(5-3-6)8(9)10/h2-5H,1H3,(H,9,10) Key: LPNBBFKOUUSUDB-UHFFFAOYSA-N ; InChI=1/C8H8O2/c1-6-2-4-7(5-3-6)8(9)10/h2-5H,1H3,(H,9,10) Key: LPNBBFKOUUSUDB-UHFFFAOYAB;
	SMILES O=C(O)c1ccc(cc1)C;
Properties
Chemical formula	C8H8O2
Molar mass	136.150 g·mol−1
Appearance	Crystalline solid
Solubility in water	Sparingly soluble in hot water
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-429 kJ/mol
Std enthalpy of; combustion (ΔcH⦵298)	3862 kJ/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

p-Toluic acid (4-methylbenzoic acid) is a substituted benzoic acid with the formula CH₃C₆H₄COOH. It is an intermediate in some industrial processes for the oxidation of p-xylene to terephthalic acid which is used in the manufacture of polyethylene terephthalate. It is a white crystalline solid that is practically insoluble in water, but soluble in acetone.

References

^ ^a ^b Merck Index, 12th Edition, 9673

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[Merck-1] Merck Index, 12th Edition, 9673

See also

References