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Names | |
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Preferred IUPAC name
4-Chloro-3,5-dimethylphenol[1] | |
Other names
para-Chloro-meta-xylenol, PCMX, 4-Chloro-3,5-dimethylphenol
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Identifiers | |
3D model (JSmol)
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1862539 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.001.631 |
EC Number |
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KEGG | |
MeSH | chloroxylenol |
PubChem CID
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RTECS number |
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C8H9ClO | |
Molar mass | 156.61 g·mol−1 |
Melting point | 115 °C (239 °F; 388 K) |
Boiling point | 246 °C (475 °F; 519 K) |
300 mg/L [2] | |
Solubility in alcohols | soluble |
Solubility in Ethers | soluble |
Solubility in Benzene | soluble |
log P | 3.377 |
Acidity (pKa) | 9.76 |
Basicity (pKb) | 4.24 |
Pharmacology | |
D08AE05 (WHO) | |
Hazards | |
GHS labelling: | |
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Warning | |
H302, H315, H317, H319 | |
P280, P305+P351+P338 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chloroxylenol, also known as para-chloro-meta-xylenol (PCMX), is a chlorine substituted phenol with a white to off-white appearance and a phenolic odor. The discovery of chloroxylenol was the result of efforts to produce improved antiseptics that began at the end of the 1800s. First synthesized in Germany in 1923, it was borne out of the study of coal tar components that began a decade earlier.[2]