бета-пинен

Описание

Beta-pinene is a component of turpentine. Concentrations vary depending on the source and seem to be high er in European (Portuguese) than in Asian (Indonesian) turpentines.

Химические свойства

liquid

Вхождение

Usually occurring together with α-pinene but in smaller amounts; the d- and l-forms are reported found in the essential oils of various Artemisae and several Cupressaceae, in coriander and cumin; the l-form is a constituent of several citrus oils. β-Pinene is reported found in over 190 natural products including apple, apricot, many citrus juices and peel oils, bilberry, cranberry, lingonberry, blackberry, currants, guava, raspberry, strawberry, basil, carrot, celery, cooked potato, bell pepper, tomato, anise seed oil, cinnamon, cassia leaf, clove, cumin, ginger, Mentha oils, nutmeg, mace, pepper, parsley, thyme, Swiss and cheddar cheese, cream, fatty fish, fried chicken, beef fat, hop oil, rum, bourbon whiskey, tea, roasted filberts, pecans, oats, soybean, plum, mushroom, sweet and wild marjoram, starfruit, mango, tamarind, cardamom, coriander, gin, rice, litchi, calamus, dill, lovage, caraway seed, buckwheat, laurel, fennel, kiwifruit, myrtle leaf and berry, rosemary, buchu oil, Bourbon vanilla, Spanish and clary sage, nectarine, crayfish, clam, cape gooseberry, anise hyssop, angelica root oil, Roman and German chamomile oil, eucalyptus oil, bullock’s heart and mastic gum leaf and fruit oil.

Подготовка

Isolated from American turpentine; also by conversion from α-pinene; as an intermediate extremely important for the manufacture of citral, citronellol, hydroxycitronellal, geraniol, citronellal, linalool, ionones, methylionones and menthol.

Определение

ChEBI: An isomer of pinene with an exocyclic double bond. It is a component of essential oils from many plants.

Контактные аллергены

Beta-pinene is a component of turpentine. Concentrations vary with the source and seem higher in European (Portuguese) than in Asian (Indonesian) turpentine.

Профиль безопасности

Mddly toxic by ingestion. A skin irritant. Flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes.