Certain organic compounds found in grapefruit are known to interfere with the hepatic cytochrome P450 enzyme CYP2D6, which is responsible for converting hydrocodone into hydromorphone.

Carbonyl compounds make up much of the remainder, and these are responsible for much of the distinctive flavor.

It is not yet known exactly which compounds are primarily responsible for maple syrup's distinctive flavour.

Though there are many compounds present in the extracts of vanilla, the compound vanillin ( 4-hydroxy-3-methoxybenzaldehyde ) is primarily responsible for the characteristic flavor and smell of vanilla.

The specific impurity ( or impurities ) responsible for the toxic effects was never firmly established, however two compounds, EBT ( 1, 1 '- ethylidene-bis-L-tryptophan, popularly known as " Peak E ") and MTCA ( 1-methyl-1, 2, 3, 4-tetrahydro-beta-carboline-3-carboxylic acid ), which are close chemical relatives of L-tryptophan were implicated.

b. higher polarization power of ( i. e. charge size ratio ) resulting in increased covalent character of its compounds which is responsible for their solubility in organic solvents

These compounds are also responsible for the bitter taste of rutabagas.

These compounds may be responsible for the low albedo of the inner Neptunian moons.

Among the microscopic particles responsible for the scattering are carbon compounds ( e. g. diamond dust ) and compounds of other elements such as iron and nickel.

( Prostaglandins are also the compounds responsible for causing the myometrium to contract and expel the menses from the uterus, during menstruation.

TCA and TBA are responsible for the vast majority of cases of cork taint, but other less common and less known compounds that can cause different varieties include guaiacol, geosmin, 2-methylisoborneol ( MIB ), octen-3-ol and octen-3-one-each has its own aroma, all of them considered objectionable in wine.

CD-4 was responsible for major improvements in phonograph technology including better compliance, lower distortion levels, pick-up cartridges with a significantly higher frequency range, and new record compounds such as Q-540, which were highly anti-static.

These compounds are responsible for what Metchnikoff called intestinal auto-intoxication, which, according to him, was the cause of the physical changes associated with old age.

The Montreal Protocol targeted 1, 1, 1-trichloroethane as one of those compounds responsible for ozone depletion and banned its use beginning in 1996.

Certain minerals occasionally contain interstitial impurities of radioactive compounds and it is the alpha radiation emitted from these compounds that is responsible for degrading a mineral's crystal structure through internal bombardment.

Psilocin and psilocybin are the psychedelic compounds responsible for the psychoactive effects of many species in the genus.

The toxic compounds have not been identified but are probably the same as those responsible for the bitter taste ; they might be glycosides or alkaloids.

Phytochemicals, chemical compounds that occur naturally in plants ( phyto means " plant " in Greek ), are responsible for color and organoleptic properties, such as the deep purple of blueberries and smell of garlic.

* UDP-glucuronosyltransferase, an enzyme superfamily responsible for the detoxification pathway of many drugs, environmental pollutants, and toxic endogenous compounds has 16 known isoforms encoded in the human genome.

His interest in the stability of tri-valent carbon free-radical compounds brought him to publish the first of many publications in which he sought to identify the steric and electronic factors responsible for the dissociation of hexa-substituted ethane derivatives.

The main compounds responsible for its psychedelic effects are psilocybin and psilocin.

The majority of the extractions confirm that bufotenin is primarily responsible for the effects of yopo with the other compounds usually appearing in quantities too small to produce noticeable effects in an average yopo dose of 5-10 grams.

If they are to be commended for foresight in their planning, what then is the judgment of a town council that compounds this problem during the planning stage??

The vast number of compounds to be covered, the limited resources to do the job, and the immediate need for this type of compilation precluded a thorough evaluation of all available data in the present edition.

Gelignite was more stable, transportable and conveniently formed to fit into bored holes, like those used in drilling and mining, than the previously used compounds and was adopted as the standard technology for mining in the Age of Engineering bringing Nobel a great amount of financial success, though at a significant cost to his health.

Theoretical calculations have predicted several argon compounds that should be stable, but for which no synthesis routes are currently known.

Antimony compounds have been known since ancient times and were used for cosmetics ; metallic antimony was also known, but it was erroneously identified as lead.

Antimony compounds are prominent additives for chlorine-and bromine-containing fire retardants found in many commercial and domestic products.

Except for AcPO < sub > 4 </ sub >, they are all similar to the corresponding lanthanum compounds and contain actinium in the oxidation state + 3.

9 of the 20 standard amino acids are called " essential " amino acids for humans because they cannot be created from other compounds by the human body, and so must be taken in as food.

Of the 22 standard amino acids, 9 are called essential amino acids because the human body cannot synthesize them from other compounds at the level needed for normal growth, so they must be obtained from food.

The discovery of such a powerful antibiotic was unprecedented, and the development of penicillin led to renewed interest in the search for antibiotic compounds with similar efficacy and safety.

Florey credited Dubos with pioneering the approach of deliberately and systematically searching for antibacterial compounds, which had led to the discovery of gramicidin and had revived Florey's research in penicillin.

Antibacterial resistance may impose a biological cost, thereby reducing fitness of resistant strains, which can limit the spread of antibacterial-resistant bacteria, for example, in the absence of antibacterial compounds.

The term allotropy is used for elements only, not for compounds.

By 1912, Ostwald noted that the allotropy of elements is just a special case of the phenomenon of polymorphism known for compounds, and proposed that the terms allotrope and allotropy be abandoned and replaced by polymorph and polymorphism.

These compounds may produce positive results for amphetamine on drug tests.

The term lipid comprises a diverse range of molecules and to some extent is a catchall for relatively water-insoluble or nonpolar compounds of biological origin, including waxes, fatty acids, fatty-acid derived phospholipids, sphingolipids, glycolipids, and terpenoids ( e. g., retinoids and steroids ).

Functional genomic and metagenomic approaches are increasing our understanding of the relative importance of different pathways and regulatory networks to carbon flux in particular environments and for particular compounds and they will certainly accelerate the development of bioremediation technologies and biotransformation processes.

# Make combined words ( compounds ) from two nouns ( for example " milkman ") or a noun and a directive ( sundown ).

Generally it refers to a system for naming chemical compounds.

Before chemistry became a science, alchemists had designed arcane symbols for both metals and common compounds.

For example, an " X " is used to indicate a variable group amongst a class of compounds ( though usually a halogen ), while " R " is used for a radical, meaning a compound structure such as a hydrocarbon chain.

* Chromic acid is a powerful oxidizing agent and is a useful compound for cleaning laboratory glassware of any trace of organic compounds.

Water insoluble chromium ( III ) compounds and chromium metal are not considered a health hazard, while the toxicity and carcinogenic properties of chromium ( VI ) have been known for a long time.