Cresols

{| align="right" border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;" ! align="center" colspan="4" | Isomers of Cresol |- | Skeletal formula | 90px|center | 90px|center | 45px|center |- | Ball-and-stick model | 100px | 100px | 100px |- ! align="center" colspan="4" | General |- | Common name | '''o-cresol | m-cresol | p-cresol' |- | Preferred IUPAC name | 2-methylphenol | 3-methylphenol | 4-methylphenol |- | Systematic name | 2-methylbenzenol | 3-methylbenzenol | 4-methylbenzenol |- | Other names | ortho-c

'''para-Cresol, also 4-methylphenol', is an organic compound with the formula CH3C6H4(OH). It is a colourless solid that is widely used intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of o-cresol and m''-cresol.

'''meta-Cresol, also 3-methylphenol', is an organic compound with the formula CH3C6H4(OH). It is a colourless, viscous liquid that is used as an intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of p-cresol and o''-cresol.

'''ortho-Cresol (IUPAC name: 2-methylphenol, also known as 2-hydroxytoluene or ortho-toluenol') is an organic compound with the formula CH3C6H4(OH). It is a colourless solid that is widely used intermediate in the production of other chemicals. It is a derivative of phenol and is an isomer of p-cresol and m''-cresol.

'''p-Chlorocresol, or 4-chloro-3-methylphenol''' (ClC6H3CH3OH), also known as p-chloro-m-cresol, is a potent disinfectant and antiseptic. It appears as a pinkish white crystalline solid. It is also used as a preservative in cosmetics and medicinal products for both humans and animals. It is used as an active ingredient in some preparations of veterinary medicines for topical, oral and parenteral use. Normally, the concentration of p-Chlorocresol in oral and parenteral veterinary products are 0.1-0.2%. Concentrations are higher (~0.5%) in topical veterinary products. p-Chlorocresol contains mic

'2-Chloro-m-cresol' is a chlorinated cresol. The compound is difficult to synthesise as chlorination of m-cresol yields the para-product (4-chloro-3-methylphenol). Historically synthesis has been achieved via a para-selective nitration, followed by conversion to a diazonium compound and a Sandmeyer reaction to insert the chlorine into the 2-position.

thumb|right Creolin (which is also called Creolina) is a generic name for disinfectants whose composition varies according to origin. It is extracted from the dry distillation of wood. The residue remaining in the autoclave vessel is a dark, syrupy mass called creosote, which is composed mainly of phenolic acid and cresylic acid. The original composition of creolin is a creosote tar oil, caustic soda, soaps, and very little water. It is of low technology and a very powerful disinfectant.