This section is from the book "Dental Medicine. A Manual Of Dental Materia Medica And Therapeutics", by Ferdinand J. S. Gorgas. Also available from Amazon: Dental Medicine.
Cresylic Acid is an antiseptic and germicide upon the different kinds of pathogenic organisms. It is a colorless liquid having the odor of creasote. It boils at 2030, and is slightly caustic. It is soluble in water, quite soluble in alcohol, glycerine, and water of ammonia, and very soluble in both of the latter. When injected into rabbits it produced toxic symptoms, but to cause death a dose four times greater than that of carbolic acid was required. It has a marked effect in retarding the fermentation of urine and milk. Experiments on cultures of the various pathogenic microorganisms demonstrated that cresylic acid is a powerful antiseptic and germicide, and quicker in its action than carbolic acid or its congeners.