4-chloro-3-methylphenol

Description

White crystals with a phenolic odor that have been used as a topical antiseptic. Chlorocresol dissolved in ethanol has been used as a Fungicide on paintings, Parchment, and Stone (Caneva et al 1991).

Synonyms and Related Terms

chlorocresol; p-chloro m-cresol; parachlorometacresol; 4-chloro-m-cresol; CMC; 2-chloro-5-hydroxytoluene

Physical and Chemical Properties

Soluble in alcohol, benzene, chloroform, ether, acetone, mineral spirits, oils, terpenes, and aqueous alkaline solutions.

Composition	C7H7ClO
CAS	59-50-7
Melting Point	55.5 - 66 C
Molecular Weight	mol. wt. = 142.58
Boiling Point	235 C

Risks

• Toxic by ingestion. LD50 = 1830 mg/kg. Turns yellow with exposure to light and air.

• Contact causes irritation, dermatitis and allergic reactions.

• Fisher Scientific: MSDS

Comparisons

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Resources and Citations

• The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: Entry # 2102

• G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991

• Matte Paint: Its history and technology, analysis, properties and conservation treatment, Eric Hansen, Sue Walston, Mitchell Bishop (ed.), J. Paul Getty Trust, Los Angeles, Vol. 30 of AATA, 1993