P-Chlorocresol

p-Chlorocresol
Names
	Preferred IUPAC name 4-Chloro-3-methylphenol
	Other names p-chloro-m-cresol; PCMC; Preventol; CMK
Identifiers
CAS Number	59-50-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34395;
ChEMBL	ChEMBL1230222 ;
ChemSpider	21106018 ;
ECHA InfoCard	100.000.392
EC Number	200-431-6;
KEGG	C14331; D03468;
PubChem CID	1732;
RTECS number	GO7100000;
UNII	36W53O7109 ;
UN number	2669
CompTox Dashboard (EPA)	DTXSID4021717 ;
	InChI InChI=1S/C7H7ClO/c1-5-4-6(9)2-3-7(5)8/h2-4,9H,1H3 Key: CFKMVGJGLGKFKI-UHFFFAOYSA-N ; InChI=1/C7H7ClO/c1-5-4-6(9)2-3-7(5)8/h2-4,9H,1H3 Key: CFKMVGJGLGKFKI-UHFFFAOYAE;
	SMILES Oc1ccc(Cl)c(C)c1;
Properties
Chemical formula	C7H7ClO
Molar mass	142.58 g·mol−1
Appearance	White solid
Odor	Phenolic
Density	1.37 g/cm3 (20 °C)
Melting point	55.55 °C (131.99 °F; 328.70 K)
Boiling point	235 °C (455 °F; 508 K)
Solubility in water	3.8 g/L at 20 °C (in water)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H314, H317, H335, H400, H412
Precautionary statements	P260, P261, P264, P270, P271, P272, P273, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P333+P313, P363, P391, P403+P233, P405, P501
Flash point	118 °C (244 °F; 391 K)
Related compounds
Related compounds	Chloroxylenol (4-chloro-3,5-dimethylphenol)
	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-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 microbial activity against both gram positive and gram negative bacteria and fungi.

The use of p-Chlorocresol is regulated by government agencies such as the US Food and Drug administration, and limits are set on the amount of p-Chlorocresol that can be present in various products.

Chlorocresol was first introduced as a bactericide in 1897 by Kalle & Co. after scientists gradually discovered that more substituted and more lipophylic phenols are less toxic, less irritant and more powerful.