Carvacrol

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Carvacrol
Chemical name	2-methyl-5-(1-methylethyl)phenol
Chemical formula	C10H14O
Molecular mass	150.22 g/mol
CAS number	[499-75-2]
Density	? g/cm3
Melting point	0 °C
Boiling point	236-237 °C
SMILES	CC1=C(C=C(C=C1)C(C)C)O
Disclaimer and references

Carvacrol, or cymophenol, C₆H₃CH₃(OH)(C₃H₇), is a constituent of the ethereal oil of Origanum hirtum, oil of thyme, oil obtained from pepperwort, and wild bergamot. It may be synthetically prepared by the fusion of cymol sulfonic acid with caustic potash; by the action of nitrous acid on 1-methyl-2-amino-4-propyl benzene; by prolonged heating of five parts of camphor with one part of iodine; or by heating carvol with glacial phosphoric acid or by performing a dehydrogenation of carvone with a Pd/C catalyst. It is extracted from Origanum oil by means of a 50% potash solution. It is a thick oil which sets at 20 °C to a mass of crystals of melting point 0°C, and boiling point 236-237 °C. Oxidation with ferric chloride converts it into dicarvacrol, whilst phosphorus pentachloride transforms it into chlorcymol.

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