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S-(+)-Carvone is the principal constituent (60–70%) of the oil from caraway seeds (Carum carvi), [8] which is produced on a scale of about 10 tonnes per year. [3] It also occurs to the extent of about 40–60% in dill seed oil (from Anethum graveolens), and also in mandarin orange peel oil.
[1] [2] It is also used in chemical synthesis as a precursor to carvone and as a renewables-based solvent in cleaning products. [1] The less common (-)-isomer has a piny, turpentine-like odor, and is found in the edible parts of such plants as caraway, dill, and bergamot orange plants. [3] Limonene takes its name from Italian limone ("lemon"). [4]
[2]: 2–65 Compounds which rotate the plane of polarization of a beam of plane polarized light clockwise are said to be dextrorotary, and correspond with positive specific rotation values, while compounds which rotate the plane of polarization of plane polarized light counterclockwise are said to be levorotary, and correspond with negative values.
Only the dextro-isomer (dextropropoxyphene) has an analgesic effect; the levo-isomer appears to exert only an antitussive effect. It was formerly marketed in the U.S. by Eli Lilly under the tradename Novrad (a reversal of Darvon) as an antitussive. [1] [2] Unlike many antitussives, it binds poorly to the sigma-1 receptor. [3]
Dextropropoxyphene [5] is an analgesic in the opioid category, patented in 1955 [6] and manufactured by Eli Lilly and Company.It is an optical isomer of levopropoxyphene.It is intended to treat mild pain and also has antitussive (cough suppressant) and local anaesthetic effects.
January 22, 2025 at 5:30 AM Food & Wine / Getty Images Eggs are a kitchen workhorse: They can be used as a binder or leavening agent while adding rich texture and flavor to many recipes.
This Dutch oven comes in a wide range of sizes, from 2 quarts all the way up to 13.25 quarts, and we tested the popular 7.25-quart size, which is recommended for cooking seven or eight servings at ...
DEXRON-VI is of a slightly lower viscosity when new compared to the prior DEXRON fluids (a maximum of 6.4 cSt at 100 °C for DEXRON-VI and 7.5 cSt for DEXRON-III), but the allowed viscosity loss from shearing of the ATF during use is lower for DEXRON-VI, resulting in the same lowest allowed final viscosity for both DEXRON-III and DEXRON-VI (5.5 ...