p-Chlorocresol

p-Chlorocresol is an organic compound with the formula ClC6H3CH3OH. Classified as a monochlorinated m-cresol, it is a white or colorless solid that is only slightly soluble in water. As a solution in alcohol and in combination with other phenols, it is used as an antiseptic and preservative.[1][2][3]

p-Chlorocresol
Names
Preferred IUPAC name
4-Chloro-3-methylphenol
Other names
p-chloro-m-cresol; PCMC; Preventol; CMK
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.392
EC Number
  • 200-431-6
KEGG
RTECS number
  • GO7100000
UNII
UN number 2669
  • InChI=1S/C7H7ClO/c1-5-4-6(9)2-3-7(5)8/h2-4,9H,1H3 Y
    Key: CFKMVGJGLGKFKI-UHFFFAOYSA-N Y
  • InChI=1/C7H7ClO/c1-5-4-6(9)2-3-7(5)8/h2-4,9H,1H3
    Key: CFKMVGJGLGKFKI-UHFFFAOYAE
  • Oc1ccc(Cl)c(C)c1
Properties
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)
3.8 g/L at 20 °C (in water)
Hazards
GHS labelling:
Danger
H302, H314, H317, H335, H400, H412
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).
N verify (what is YN ?)
Infobox references

p-Chlorocresol is prepared by chlorination of m-cresol.[4][5]

Safety

With LD50(oral, rat) of 5129 mg/kg, it is weakly toxic.[4]

It is a moderate allergen for sensitive skin.[6]

See also

References
  1. Susan C Smolinske (1992), Handbook of Food, Drug, and Cosmetic Excipients, p. 87
  2. C. Glen Mayhall (2004), Hospital Epidemiology and Infection Control, p. 1741
  3. Uhr, Hermann; Mielke, Burkhard; Exner, Otto; Payne, Ken R.; Hill, Edward (2013). "Biocides". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. pp. 1–26. doi:10.1002/14356007.a16_563.pub2.
  4. Helmut Fiege; Heinz-Werner Voges; Toshikazu Hamamoto; Sumio Umemura; Tadao Iwata; Hisaya Miki; Yasuhiro Fujita; Hans-Josef Buysch; Dorothea Garbe (2007). "Phenol Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_313.
  5. Commission, British Pharmacopoeia (2009), "Phenoxyethanol", British Pharmacopoeia, vol. 2, ISBN 978-0-11-322799-0
  6. Howard I. Maibach (2001), Toxicology of Skin, p. 339
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