Camphor thyme

SYNS P-CYMEN-3-OL 3-p-CYMENOL 3-HYDRO-XY-p-CYMENE 3-HYDROXY-1-METHYL-4-ISOPROP-YLBENZENE ISOPROPYL CRESOL 6-ISOPROPYL-m-CRESOL 2-ISOPROPYL-5-METHYLPHENOL 1-METHYL-3-HYDROXY-4-ISOPROPYLBENZENE 5-METHYL-2-ISOPROPYL-1-PHENOL 5-METHYL-2-(l-METHYLETHYL)PHENOL THYME CAMPHOR THYMIC ACID m-THYMOL... 

Addo trimico 3-p-cymenol p-cymen-3-ol Flavinol 3-hydroxy-p-cymene 3-hydroxy-l-methyl-4-isopropylbenzene Intrasol isopropyl cresol isopropyl-w-cresol 6-isopropyl-m-cresol isopropyl metacresol 2-isopropyl-5-methylphenol 1-methyl-3-hydroxy-4-isopropylbenzene 5-methyl-2-isopropyl-phenol 5-methyl-2-(l-methylethyl) phenol Medophyll thyme camphor thymic acid m-thymol timol. 

Nor is the confusion limited to botanical terms. The multitude of trivial chemical names in this field is again testimony to the conservatism of scientists. The classic example of how meaningless a term can become is perhaps that of the camphors, of which there must once have been at least 15— bergamot camphor, thyme camphor, cardamom camphor, and so on. Berzelius protested against this indiscriminate use in the 182O s Otto Wallach, 70 years later, persuaded his coworkers to drop the term. (It persists, however, in the trade.) The continued use of such words as limonene and citral, when more descriptive and comprehensible terms are at hand, is justified only because tradition is behind it. 

AI3-00708 Caswell No. 856A CCRIS 7299 Cymo-phenol, a- EINECS 201-944-8 ERA Pesticide Chemical Code 080402 FEMA Number 3066 HSDB 866 Isopropyl cresol NSC 11215 Thyme camphor Thymic acid Thymol m-Thymol Thymol (natural). An antibacterial and antifungal agent used in perfumery, microscopy, preservative, antioxidant, flavoring, as a laboratory reagent, in the manufacture of menthol. Used in the prevention of mold and mildew, in flavoring and perfumery, as a preservative and antioxidant and a topical antiseptic. Crystalline solid mp = 51,5° bp = 232.5" dl ... 

Precautions Poison by swallowing. Could cause allergic reaction. An FDA over-the-counter drug. Synonyms cas 89-83-s isopROPYL-m-cREsoL thyme camphor thymic aqd 3-P-cymenol Titanium Dioxide... 

Thyme camphor. See Thymol Thyme extract. See Thyme (Thymus vulgaris), extract... 

Methyl-2-isopropylphenol 5-Methyl-2-(1-methylethyl) phenol Phenol, 5-methyl-2-(1-methylethyl)- Thyme camphor Thymic acid m-Thymol... 

Synonyms 5-Methyl-2-(l-methylethyl)phenol 3-p-cymenol 3-hydroxy-p-cymene thyme camphor m-thymol isopropylmeta cresol timol Trade names Bensulfold... 

A recent survey about essential oils and their pure constituents used to control Varroa jacobsoni, contained three interesting tables that reported the toxicity of essential oils for V. jacobsoni and Apis mellifera after 24, 48 and 72 hours in a topical application and in an evaporation test, and the effects of essential oils on behavior and reproduction of V jacobsoni and on the bee brood [63]. The most interesting oils were those of cinnamon and clove, with 100% mite mortality after 24 h and no significant toxicity on honey bees. Furthermore, clove essential oil produced small brood mortality, and it was an inhibitor of mite reproduction. Other effective oils were anise, fennel, lavender, rosemary and wintergreen, which killed 100% mites after 48-72 hours. On the contrary, the oils obtained from garlic, onion, oregano and thyme, were found to be very toxic for honey bees. Among pure constituents, camphor, linalool, linalyl acetate and pinene resulted small brood mortality and inhibited mite reproduction. 

When essential oils are described only by their common names, not only do these exclude the importance of the species but they also do not account for the chemotype e.g. thyme might be Thymus vulgaris CT thymol and rosemary might be Rosmarinus officinalis CT camphor (CT after the name of the essential oil describes the chemotype, naming the significant compound within that oil). 

Both an aqueous phase and an oily phase (including waxes and essential oils) were extracted from the herbs. These were collected separately as described in the next section. The essential oils in the oily extract were camphor, verbenone, P-myrcene, 1,8 cineole and limonene for Rosemary and thymol, geraniol and geranyl acetate,carvocrol and borneol for Thyme. 

Cymene is found in thyme oil, eucalyptus oil, and Roman cummin oil. It is also obtained by heating camphor with phosphorus pentoxide and from turpentine by reduction with iodine. 

Terpenes and Camphor.—The importance of these two phenols is in their natural occurrence as ethers in ethereal oils of many plants, e.g., oil of thyme and oil of caraway, and especially in their relationship to the terpenes and camphor, as will be shown later (p. 826, 834). 

In the Acidum Aceticum Aromaticum of Belgium and Russia, oil of cloves, lavender, orange, bergamot thyme, and cinnamon ate used while in the French preparation camphor is the chief flavouring irgredient. 

All the materials tested were effective with the exception of boronia (Figure 4). Eucalyptus induced a 93% mortality, while cypress gave 90%, camphor 83% (Figure 2[10]), spearmint 78%, white thyme 75%, pheasant grass 50%, sassafras 50%, anethole (Figure 2[11]) 35%, red thyme 34%, and aniseed 28% (P < 0.05). It is interesting to note the disparity between white thyme and red thyme which indicates that either there is a significant increase in one bioactive compound in one cultivar versus the other, or that a specific ratio of compounds in the mixture is more effective than another. 

In comparing the results of Ae two sets of experiments, it will be seen that red thyme was 41% less effective against LBAM than white thyme and in controlling Flour Beetle there was, in comparison, a 65% difference between the two botanical cultivars. Furthermore, the effectiveness of the essential oils drops off rapidly so that only eucalyptus, camphor, and white thyme may be considered as useful canidates. Oddly, black pepper was inactive in these assays, while in earlier work certain components of this commodity have been shown to have strong insecticidal properties. The earliest report being in 1943 (12), which was followed not only by later reports of insecticidal... 

Cymene, C6H4(CH3)(iso-C3H7)(l, 4), is para-methyliso-propylbenzene. It is a constituent of a number of essential oils, such as oil of caraway, oil of lemon, oil of thyme, and oil of eucalyptus. It can be prepared by Fittig s synthesis from p-bromoisopropylbenzene. It is most readily prepared by warming camphor with phosphorus pentoxide —... 

Carvacrol occurs with cymene in a number of essential oils. It can be prepared by heating camphor with iodine. Thymol occurs in the oil of thyme and the oil of mint. It has germicidal properties, but is less active and less poisonous than phenol. 

Six years later Myers (1903) used aqueous solutions of camphor to evaluate the olfactory sensitivity of a group of Murray Islanders. In addition, these individuals were asked to describe the odors of perfumes and other scents, and to indicate whether they liked or disliked them. The average olfactory acuity of the islanders was reported as being slightly higher than that of Scottish control subjects, and their likes and dislikes were noted as being quite similar (e.g., they disliked asafoetida, valeric acid, and civet, and liked musk, thyme and violet). 

Conventional drugs involving essential oils and their components have been used internally for a long time, for example, decongestants containing menthol, camphor, and pine, and various throat drops containing components from essential oils such as lemon, thyme, peppermint, sage, and hyssop. 

Odoriferous substances and their mixtures (e.g. essential oils) show a number of beneficial effects for which they have found use as pharmaceuticals, pharmaceutical ingredients and food additives. Bactericidal and anti-inflammatory effects are seen in bomeol, eugenol, pinenes, camphor, thymol and menthol, choHnolytic (spasmolytic) effects preventing a drop in blood pressure and suppressing the secretory activity of various organs are found in camphor, pinenes and camphene, and analeptic effects (stimulating activity of circulation and respiratory system) are seen in camphene. The essential oils of many spices (such as marjoram, sage, thyme and many others) exhibit antioxidant effects, and therefore find use as natural antioxidants of fats. 

---