This first generation also included other quinolone drugs, such as pipemidic acid, oxolinic acid, and cinoxacin, which were introduced in the 1970s.

A large variety of different labels were introduced in the recent years, where 2-aminobenzamide ( AB ), anthranilic acid ( AA ), 2-aminopyridin ( PA ), 2-aminoacridone ( AMAC ) and 3 -( acetylamino )- 6-aminoacridine ( AA-Ac ) are just a few of them.

The band were first introduced to the acid house scene by McGee in 1988.

He introduced the use of pyrogallic acid as a developing agent, and was one of the first photographers to use paper negatives.

The use of hydrofluoric acid ( HF ) to digest silicate minerals was introduced by Assarson and Granlund in 1924, greatly reducing the amount of time required to scan slides for palynomorphs.

This is carried out either as an intentional procedure in which specially cultivated strains of such bacteria are introduced into the maturing wine, or it can happen by chance if uncultivated lactic acid bacteria are present.

Höss later introduced hydrogen cyanide ( Prussic acid ), produced from the pesticide Zyklon B to the killing process, after his deputy Karl Fritzsch tested it on a group of Russian prisoners in 1941.

The term " sialic acid " ( from the Greek for saliva, σίαλον / sialon ) was first introduced by Swedish biochemist Gunnar Blix in 1952.

In 2004 Rawlings and colleagues introduced a classification of protease inhibitors based on similarities detectable at the level of amino acid sequence.

In 1754 he introduced the concept of a base into chemistry, as a substance which reacts with an acid to give it solid form ( as a salt ).

In biology, this technique may be used to determine the tissue localization of a radioactive substance, either introduced into a metabolic pathway, bound to a receptor or enzyme, or hybridized to a nucleic acid .< ref > The film or emulsion is apposed to the labeled tissue section to obtain the autoradiograph ( also called an autoradiogram ).

The medical use of ethylenediaminetetraacetic acid ( EDTA ) as a lead chelating agent was introduced.

The Soviets also introduced ALA, which is transformed by the body into the dithiol dihydrolipoic acid, a mercury-and arsenic-chelating agent.

In the following decades, intestinal lactic acid bacterial species with alleged health beneficial properties have been introduced as probiotics, including Lactobacillus rhamnosus, Lactobacillus casei, and Lactobacillus johnsonii.

Carboxyglutamic acid ( or the conjugate base, carboxyglutamate ), is an uncommon amino acid introduced into proteins by a post-translational carboxylation of glutamic acid residues.

With the publication of germ theory Halsted was using carbolic acid, introduced by Joseph Lister, to sterilize his hands and his nurse's hands.

Although he had been dismissive of acid house, a close friend introduced him to the rave scene in the early nineties-drawn in by the hip hop samples and influences, which had crept into the music over time.

In-vivo crosslinking of protein complexes using photo-reactive amino acid analogs was introduced in 2005 by researchers from the Max Planck Institute In this method, cells are grown with photoreactive diazirine analogs to leucine and methionine, which are incorporated into proteins.

Sulfur dioxide is introduced with steam and oxides of nitrogen into large chambers lined with sheet lead where the gases are sprayed down with water and chamber acid.

An alternative rock band, the Nude Girls introduced punk, ska, acid jazz and metal into their songs, introducing a new world of music to the youth of South Africa in the early 1990s.

After the suggestion by Louis Pasteur, Joseph Lister, 1st Baron Lister introduced the use of carbolic acid as an antiseptic and reduced surgical infections rates.

Douglass prepared his sample of Af by thermal decomposition of aqueous chromic acid at 300 - 325-degrees-C.

Two metabolites ( 1, and 2 ) ) of p-aminobenzoic acid ( PABA ) which act as cofactors for the hydroxylation of aniline by acid-fast bacteria are biosynthesized from Aj.

Both theories easily describe the first reaction: CH < sub > 3 </ sub > COOH acts as an Arrhenius acid because it acts as a source of H < sub > 3 </ sub > O < sup >+</ sup > when dissolved in water, and it acts as a Brønsted acid by donating a proton to water.

The numerical value of K < sub > a </ sub > is equal to the concentration of the products divided by the concentration of the reactants, where the reactant is the acid ( HA ) and the products are the conjugate base and H < sup >+</ sup >.

The aromatic and irritating fumes emitted by burning amber are mainly due to this acid.

Baltic amber is distinguished by its yield of succinic acid, hence the name succinite.

He validated his theory by converting carbon disulfide, in several steps, to acetic acid ( 1843 – 45 ).

* Nucleic acid thermodynamics, includes the annealing of DNA or RNA pairing by hydrogen bonds to a complementary sequence, forming a double-stranded polynucleotide

Casein based glues are made by precipitating casein from milk protein using the acetic acid from vinegar.

Since 1998, Harvard University wraps some of the valuable statues on its campus, such as this " Harvard Bixi | Chinese stele ", with waterproof covers every winter, in order to protect them from erosion caused by acid rain.

Antacids either directly neutralize acidity, increasing the pH, or reversibly reduce or block the secretion of acid by gastric cells to reduce acidity in the stomach.

Antacids are taken by mouth to relieve heartburn, the major symptom of gastroesophageal reflux disease, or acid indigestion.

* from reaction of a triphenylphosphinyl ester with an acid halide, a Wittig reaction accompanied by dehydrohalogenation

Since Lavoisier's knowledge of strong acids was mainly restricted to oxoacids, such as ( nitric acid ) and ( sulphuric acid ), which tend to contain central atoms in high oxidation states surrounded by oxygen, and since he was not aware of the true composition of the hydrohalic acids ( HF, HCl, HBr, and HI ), he defined acids in terms of their containing oxygen, which in fact he named from Greek words meaning " acid-former " ( from the Greek οξυς ( oxys ) meaning " acid " or " sharp " and γεινομαι ( geinomai ) meaning " engender ").

According to Liebig, an acid is a hydrogen-containing substance in which the hydrogen could be replaced by a metal.

The Arrhenius definition of acid – base reactions is a development of the hydrogen theory of acids, devised by Svante Arrhenius, which was used to provide a modern definition of acids and bases that followed from his work with Friedrich Wilhelm Ostwald in establishing the presence of ions in aqueous solution in 1884, and led to Arrhenius receiving the Nobel Prize in Chemistry in 1903 for " recognition of the extraordinary services ... rendered to the advancement of chemistry by his electrolytic theory of dissociation ".

As defined by Arrhenius, acid – base reactions are characterized by Arrhenius acids, which dissociate in aqueous solution to form hydrogen ions (), and Arrhenius bases, which form hydroxide () ions.

A common example is nitric acid produced by electric discharge in the atmosphere such as lightning.

Carbonic acid is formed by the reaction

Trees killed by acid rain