4-Methylbenzoic acid

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4-Methylbenzoic acid
IUPAC name	4-Methylbenzoic acid
Identifiers
CAS number	[99-94-5]
EINECS number	202-803-3
SMILES	CC1=CC=C(C=C1)C(=O)O
Properties
Molecular formula	CH3C6H4COOH
Molar mass	136.15 g/mol
Melting point	177-180 °C
Boiling point	274-275 °C
Thermochemistry
Std enthalpy of formation ΔfHo298	-429 kJ/mol
Std enthalpy of combustion ΔcHo298	3862 kJ/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

4-Methylbenzoic acid, also known as p-toluic acid or crithminic acid (obsolete) is a substituted benzoic acid. It is an intermediate in some industrial processes for the oxidation of p-xylene to terephthalic acid which is used in the manufacture of PET. It is a white crystalline solid that is practically insoluble in water, but soluble in acetone.

[edit] See also

• o-Toluic acid
• m-Toluic acid

[edit] References

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