Sahachiro Hata discovered the antisyphilitic activity of this compound in 1909 in the laboratory of Paul Ehrlich, during a survey of hundreds of newly synthesized organic arsenical compounds.

These arsenical compounds came with considerable risk of side effects, and they were supplanted as treatments for syphilis in the 1940s by penicillin.

Melamine derivatives of arsenical drugs are potentially important in the treatment of African trypanosomiasis.

After the cavalry charged, the infantry, with fixed bayonets and adamsite gas, an arsenical vomiting agent, entered the camps, evicting veterans, families, and camp followers.

Samuel Djerassi was a physician who specialized in treating syphilis with the existing arsenical drugs.

For some substances, such as carbon and arsenical, sublimation is much easier than evaporation from the melt, because the pressure of their triple point is very high, and it is difficult to obtain them as liquids.

On the basis of updated survey conducted by School of Environmental Studies ( SOES ), Jadavpur University, out of total 22 administrative blocks in 22, 21 and 16 blocks arsenic above 10 μg / L ( WHO Recommended value of arsenic in drinking water ), 50 μg / L ( Indian standard value of arsenic in drinking water ) and 300 μg / L ( the concentration predicting overt arsenical skin lesions ) was noted respectively.

In France, Louis Dufresne, taxidermist at the Muséum national d ' Histoire naturelle from 1793, popularized arsenical soap in an article in Nouveau dictionnaire d ' histoire naturelle ( 1803 – 1804 ).

The name of the element cobalt comes from the creature's name, because medieval miners blamed the sprite for the poisonous and troublesome nature of the typical arsenical ores of this metal ( cobaltite and smaltite ) which polluted other mined elements.

The early stages of the culture occupied locations not far from mountain ranges, where copper deposits were located, because of their main invention: making tools from arsenical copper in series reusing double, two-part moulds.

* 1802-Louis Dufresne popularizes the use of arsenical soap for preserving birds, a technique which had enabled the Museum d ' Histoire Naturelle in Paris to build the greatest collection of birds in the world

Other bronze alloys include aluminium bronze, phosphor bronze, manganese bronze, bell metal, arsenical bronze, speculum metal and cymbal alloys.

Ehrlich's laboratory developed a more soluble ( but slightly less effective ) arsenical compound, Neosalvarsan ( neoarsphenamine ), which was easier to prepare, and it became available in 1912.

The circumstances of his death were deemed suspicious by his brothers and an inquest, held in a local hotel, came to the verdict that arsenical poisoning was the most likely cause, administered by persons unknown.

Lead arsenate was the most extensively used arsenical insecticide.

The post mortem showed arsenical poisoning which was a rare cause of death.

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 structures, properties, and reactions of these compounds are being studied.

These are grouped into sections according to the crystal system, and within each section compounds are arranged in the same order as in Groth's Chemische Krystallographie.

The compounds are divided according to composition into seven categories.

There are three indexes, i.e., an inorganic formula index, a mineralogical name index, and a name index to organic compounds.

Alkanes ( also known as paraffins or saturated hydrocarbons ) are chemical compounds that consist only of hydrogen and carbon atoms and are bonded exclusively by single bonds ( i. e., they are saturated compounds ) without any cycles ( or loops ; i. e., cyclic structure ).

The organosulphur compounds responsible for the characteristic odour are believed to have antioxidant, antibiotic and anticarcinogenic properties, to stimulate the immune system and to be protective of liver functioning.

Although the neutral ground-state chemical compounds of argon are presently limited to HArF, argon can form clathrates with water when atoms of it are trapped in a lattice of the water molecules.

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

Arsenic and its compounds, especially the trioxide, are used in the production of pesticides ( treated wood products ), herbicides, and insecticides.

Arsenic is notoriously poisonous to multicellular life, although a few species of bacteria are able to use arsenic compounds as respiratory metabolites.

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

Only a limited number of actinium compounds are known including AcF < sub > 3 </ sub >, AcCl < sub > 3 </ sub >, AcBr < sub > 3 </ sub >, AcOF, AcOCl, AcOBr, Ac < sub > 2 </ sub > S < sub > 3 </ sub >, Ac < sub > 2 </ sub > O < sub > 3 </ sub > and AcPO < sub > 4 </ sub >.

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

The crystal lattice of solid americium and its compounds contains intrinsic defects, which are induced by self-irradiation with alpha particles and accumulate with time ; this results in a drift of some material properties.

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.

Some non-benzene-based compounds called heteroarenes, which follow Hückel's rule, are also aromatic compounds.

Most notably, ethanol increases the risk of respiratory depression when combined with hydrocodone containing compounds.

The earliest military, industrial, and agricultural applications of nitrogen compounds used saltpetre ( sodium nitrate or potassium nitrate ), most notably in gunpowder, and later as fertilizer.

The second major application of nitrates as oxidizing agents, most notably in explosives where the rapid oxidation of carbon compounds liberates large volumes of gases ( see Gunpowder for an example ).

Oxygen is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element that readily forms compounds ( notably oxides ) with almost all other elements.

The sensation of sweetness caused by these compounds ( the " sweetness profile ") is sometimes notably different from sucrose, so they are often used in complex mixtures that achieve the most natural sweet sensation.

Cult titles composed of compounds of nyx-are attested for several gods, most notably Dionysus Nyktelios " nocturnal " and Aphrodite Philopannyx " who loves the whole night ".

The toxic compounds of many species, notably Eucalyptus species, are volatile and flammable and the presence of large amounts of flammable litter, coupled with an herbaceous understorey, encourages fire.

Aluminium chloride, aluminium chlorohydrate, and aluminium-zirconium compounds, most notably aluminium zirconium tetrachlorohydrex gly and aluminium zirconium trichlorohydrex gly, are frequently used in antiperspirants.

They also serve for energy coupling with endergonic reactions, notably the formation of ( phospho ) anhydride compounds.

* Lord High Commissioner and its further compounds, notably Lord High Commissioner to the General Assembly of the Church of Scotland and Lord High Commissioner to the Parliament of Scotland

Compared to similar compounds such as 2C-I and 2C-B, 2C-E is more likely to produce strong synesthesia, sound distortion and an enhancement of the experience of music, and, most notably, visuals.

By 1974, the Rothamsted team had discovered a 2nd generation of more persistent compounds notably: permethrin, cypermethrin and deltamethrin.

Some chemical compounds ( notably chlorine compounds ) and highly colored samples can interfere with the counting process.

However, some manufacturers continue to coat their bullets with various compounds, notably molybdenum disulfide, as a protective layer against barrel wear, and to reduce the amount of lead given off as dust when shooting in indoor ranges.

Several groups of carbonaceous chondrites, notably the CM and CI groups, contain high percentages ( 3 % to 22 %) of water, as well as organic compounds.

In some cases, the results of laser ablation experiments are translated to isolated compounds, and the premier cases are the clusters of carbon called the fullerenes, notably clusters with the formula C < sub > 60 </ sub >, C < sub > 70 </ sub >, and C < sub > 84 </ sub >.

Imaging compounds, notably Pittsburgh compound B, ( 6-OH-BTA-1, a thioflavin ), can selectively bind to amyloid beta in vitro and in vivo.