It may be prepared by fusion of ortho-toluene sulphonic acid with potash; by the action of phosphorus pentoxide on carvacrol; or by the action of zinc chloride on camphor. [Please select]
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966; phenols, chiefly carvacrol, estimated by absorption with 5 per cent. [Please select]
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In addition to the phenols, thymol or carvacrol, these oils contain cymene, thymene and pinene. [Please select]
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