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Substance added to a system to cause a chemical reaction
In chemistry, a reagent (/riˈeɪdʒənt/ ree-AY-jənt) or analytical reagent is a substance or compound added to a system to cause a chemical reaction, or
Reagent
Strongly oxidizing solution of hydrogen peroxide mixed with dissolved iron as catalyst
Fenton's reagent is a solution of hydrogen peroxide (H2O2) and an iron catalyst (typically iron(II) sulfate, FeSO4). It is used to oxidize contaminants
Fenton's_reagent
Chemical reagent
Benedict's reagent (often called Benedict's qualitative solution or Benedict's solution) is a chemical reagent and complex mixture of sodium carbonate
Benedict's_reagent
Chemical reagent used to distinguish between aldehydes and ketones
Tollens' reagent (chemical formula Ag(NH3)2OH) is a chemical reagent used to distinguish between aldehydes and ketones along with some alpha-hydroxy ketones
Tollens'_reagent
Organometallic compounds used in organic synthesis
Grignard reagents or Grignard compounds are chemical compounds with the general formula RMgX(S)n, where X is a halide, R is an organic group (normally
Grignard_reagent
Topics referred to by the same term
Keller's reagent can refer to two different reagents: Keller's reagent (metallurgy), used to etch aluminum alloys Keller's reagent (organic), used to
Keller's_reagent
Chemical reactant totally consumed when the reaction is finished
The limiting reagent (or limiting reactant or limiting agent) in a chemical reaction is a reactant that is totally consumed when the chemical reaction
Limiting_reagent
Combination used in chemical testing
Dille–Koppanyi reagent Folin's reagent Froehde reagent Liebermann reagent Mandelin reagent Marquis reagent Mecke reagent Zwikker reagent "Simon's Reagent Testing
Simon's_reagent
Chemical compound
Lawesson's reagent (LR) is a chemical compound used in organic synthesis as a thiation agent. Lawesson's reagent was first made popular by Sven-Olov Lawesson
Lawesson's_reagent
Laboratory storage container
Reagent bottles, also known as media bottles or graduated bottles, are containers made of glass, plastic, borosilicate or related substances, and topped
Reagent_bottle
The FOX reagent, or ferrous oxidation−xylenol orange, is used to measure levels of hydrogen peroxide in biological systems. The reagent is incubated with
FOX_reagent
Chemical mixture used in microbiology
Kovács reagent is a biochemical reagent consisting of isoamyl alcohol, para-dimethylaminobenzaldehyde (DMAB), and concentrated hydrochloric acid. It is
Kovács_reagent
Chemical compound
Dimethyl (diazomethyl)phosphonate 2 is often called the Seyferth–Gilbert reagent. This reaction is called a homologation because the product has exactly
Seyferth–Gilbert_homologation
Solution used for the colorimetric determination of phenolic compounds
The Folin–Ciocâlteu reagent (FCR) or Folin's phenol reagent or Folin–Denis reagent, is a mixture of phosphomolybdate and phosphotungstate used for the
Folin–Ciocalteu_reagent
Mixture for identifying alkaloids
Dille–Koppanyi reagent Folin's reagent Froehde reagent Liebermann reagent Mandelin reagent Mecke reagent Simon's reagent Zwikker reagent "Color Test Reagents/Kits
Marquis_reagent
Reagent used in microbiology
Ehrlich's reagent or Ehrlich reagent is a reagent containing p-dimethylaminobenzaldehyde (DMAB) and thus can act as an indicator to presumptively identify
Ehrlich's_reagent
Chemical compound
The Burgess reagent (methyl N-(triethylammoniumsulfonyl)carbamate) is a mild and selective zwitterionic dehydrating reagent used in organic chemistry
Burgess_reagent
Chemical compound
Eaton's reagent is a solution of phosphorus pentoxide (P2O5) in methanesulfonic acid (CH3SO3H), averaging 7.7% by weight. The components form a mobile
Eaton's_reagent
The Denigés' reagent is a reagent used for qualitative analysis. It was developed in 1898 by Georges Denigés (December 25, 1859–February 20, 1951), a French
Denigés'_reagent
Chemical compound
Tebbe's reagent is the organometallic compound with the formula (C5H5)2TiCH2ClAl(CH3)2. It is used in the methylidenation of carbonyl compounds, that
Tebbe's_reagent
This is a list of inorganic and organic reagents commonly used in chemistry. Reagents are "substances or compounds that are added to a system in order
List_of_reagents
Chemical compound
Schweizer's reagent is a metal ammine complex with the formula [Cu(NH3)4(H2O)2](OH)2. This deep-blue compound is used in purifying cellulose. It is a
Schweizer's_reagent
Reagent used to detect water soluble proteins
Millon's reagent is an analytical reagent used to detect the presence of soluble proteins. A few drops of the reagent are added to the test solution, which
Millon's_reagent
Chemical compounds containing C–Li bonds
Organolithium reagents are a collection of organolithium compounds that are widely used in organic synthesis and polymer chemistry. These reagents are used
Organolithium_reagent
Organic compound
Woollins' reagent is an organic compound containing phosphorus and selenium. Analogous to Lawesson's reagent, it is used mainly as a selenation reagent. It
Woollins'_reagent
Chemical compound
Stryker's reagent ([(PPh3)CuH]6), also known as the Osborn complex, is a hexameric copper hydride ligated with triphenylphosphine. It is a brick red,
Stryker's_reagent
Publication of the American Chemical Society (ACS) Committee on Analytical Reagents
Reagent Chemicals is a publication of the American Chemical Society (ACS) Committee on Analytical Reagents, detailing standards of purity for over four
Reagent_Chemicals
Chemical compound
The Comins' reagent is a triflyl-donating reagent that is used to synthesize vinyl triflates from the corresponding ketone enolates or dienolates. It
Comins'_reagent
Chemical compound
The Vilsmeier reagent is an organic compound with the formula [(CH3)2NCHCl]Cl. It is a salt consisting of the N,N-dimethyliminium cation ([(CH3)2N=CHCl]+)
Vilsmeier_reagent
Chemical compound
Dille–Koppanyi reagent Froehde reagent Liebermann reagent Mandelin reagent Marquis reagent Mecke reagent Pill testing Simon's reagent Sullivan reaction
Folin's_reagent
Helps to detect alkaloids
Mayer's reagent is an alkaloidal precipitating reagent used for the detection of alkaloids in natural products. Mayer's reagent is freshly prepared by
Mayer's_reagent
Alkaline solution
Berthelot's reagent (English: /bɛərtəˈloʊ/ ber-tə-LOH, French: [bɛʁtəlo]) is an alkaline solution of phenol and hypochlorite, used in analytical chemistry
Berthelot's_reagent
Olah reagent is a nucleophilic fluorinating agent. It consists of a mixture of 70% hydrogen fluoride and 30% pyridine; alcohols react with this reagent to
Olah_reagent
Color reagent to detect alkaloids
Dragendorff's reagent is a color reagent to detect alkaloids in a test sample or as a stain for chromatography plates. Alkaloids, if present in the solution
Dragendorff's_reagent
Chemical compound
Collins reagent is the complex of chromium(VI) oxide with pyridine in dichloromethane. This metal-pyridine complex, a red solid, is used to oxidize primary
Collins_reagent
Chemical test for detecting peptide bonds
concentration, according to the Beer–Lambert law. Despite its name, the reagent does not in fact contain biuret [(H2N−CO−)2NH]. The test is so named because
Biuret_test
Chemical compound
reagent, named after Nicos A. Petasis, is an organotitanium compound with the formula Cp2Ti(CH3)2. It is an orange-colored solid. The Petasis reagent
Petasis_reagent
Chemical compound
The Nysted reagent is a reagent used in organic synthesis for the methylenation of a carbonyl group. It was discovered in 1975 by Leonard N. Nysted in
Nysted_reagent
Organometallic coupling reaction
definition, carbon alkyl, allyl, vinyl, or aryl magnesium halides (Grignard reagent) are added to the carbonyl groups of either an aldehyde or ketone under
Grignard_reaction
Class of chemical compounds
solids.[citation needed] These reagents are useful because, unlike related Grignard reagents and organolithium reagents, they react with organic halides
Gilman_reagent
Chemical reagent in metallurgy
In metallurgy, Keller's reagent is a mixture of nitric acid, hydrochloric acid, and hydrofluoric acid, used to etch aluminum alloys to reveal their grain
Keller's_reagent_(metallurgy)
Tests for authentication of psychoactive drugs, and detection of adulterants
Reagent testing is one of the processes used to identify substances contained within a pill, usually illicit substances. With the increased prevalence
Reagent_testing
Chemical compound
2-Iminothiolane is a cyclic thioimidate compound also known as Traut's reagent. It is a thiolating reagent that reacts with primary amine groups, such as those of amino
2-Iminothiolane
Oxidation of alcohol
has been displaced by related reagents such as the pyridine complex of chromium trioxide ("Collins reagent"). Jones reagent is a solution prepared by dissolving
Jones_oxidation
Chemical compound
also known as the Corey–Suggs reagent, is a yellow-orange salt with the formula [C5H5NH]+[CrO3Cl]−. It is a reagent in organic synthesis used primarily
Pyridinium_chlorochromate
The Zwikker reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. Part A is 0.5
Zwikker_reagent
Class of chemical compounds
In organic chemistry, Wittig reagents are organophosphorus compounds of the formula R3P=CHR', where R is usually phenyl. They are used to convert ketones
Wittig_reagents
Chemical compound
Togni reagent II (1-trifluoromethyl-1,2-benziodoxol-3(1H)-one) is a chemical compound used in organic synthesis for direct electrophilic trifluoromethylation
Togni_reagent_II
Test to presumptively identify alkaloids and other compounds
reagent Folin's reagent Liebermann reagent Mandelin reagent Marquis reagent Mecke reagent Simon's reagent Zwikker reagent "Color Test Reagents/Kits for Preliminary
Froehde_reagent
Chemical compound
This reagent is used to prepare other Grignard reagents by transmetalation. An illustrative reaction involves the generation of the Grignard reagent derived
Isopropylmagnesium_chloride
Chemical reagent for testing alkaloids and cardiac glycosides
In organic chemistry, Keller's reagent is a mixture of anhydrous (glacial) acetic acid, concentrated sulfuric acid, and small amounts of ferric chloride
Keller's_reagent_(organic)
Chemical compound
Ellman's reagent (5,5′-dithiobis-(2-nitrobenzoic acid) or DTNB) is a colorogenic chemical used to quantify the number or concentration of thiol groups
Ellman's_reagent
Chemical compound
4-dinitrochlorobenzene: DNPH is a reagent in instructional analytical chemistry laboratories. Brady's reagent or Borche's reagent, is prepared by dissolving
2,4-Dinitrophenylhydrazine
Chemical test for alkaloids and other compounds
Dille–Koppanyi reagent Folin's reagent Froehde reagent Liebermann reagent Marquis reagent Mecke reagent Simon's reagent Zwikker reagent "Mandelin EZ Testing
Mandelin_reagent
Reagent to identify alkaloids
Dille–Koppanyi reagent Folin's reagent Froehde reagent Liebermann reagent Mandelin reagent Marquis reagent Simon's reagent Zwikker reagent "Mecke Reagent Testing
Mecke_reagent
Class of biological molecules
Analyte-specific reagents (ASRs) are a class of biological molecules which can be used to identify and measure the amount of an individual chemical substance
Analyte-specific_reagent
Chemical compound
Davis reagent (3-phenyl-2-(phenylsulfonyl)-1,2-oxaziridine or 2-(benzenesulfonyl)-3-phenyloxaziridine) is a reagent used for oxidation in the Davis oxidation
Davis_reagent
Chemical compound
It is sometimes referred to as Baeyer's reagent after the German organic chemist Adolf von Baeyer. The reagent is an alkaline solution of potassium permanganate
Potassium_permanganate
Chemical compound
compound is used primarily as a shift reagent in NMR spectroscopy. It is the premier member of the lanthanide shift reagents and was popular in the 1970s and
EuFOD
Chemical compound
Schwartz's reagent is the common name for the organozirconium compound with the formula (C5H5)2ZrHCl, sometimes called zirconocene hydrochloride or zirconocene
Schwartz's_reagent
Chemical compound
(benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate) is a reagent commonly used for the synthesis of amides from carboxylic acids and amines
BOP_reagent
1985 film by Stuart Gordon
stars Jeffrey Combs as Herbert West, a medical student who has invented a reagent which can re-animate deceased bodies. He and his classmate Dan Cain (Bruce
Re-Animator
Chemical compound
reagent for introducing trifluoromethyl groups onto electron-rich aromatic compounds by Langlois; this reagent is also known as the Langlois reagent.
Sodium trifluoromethanesulfinate
Sodium_trifluoromethanesulfinate
Chemical compound
The Cornforth reagent (pyridinium dichromate or PDC) is a pyridinium salt of dichromate with the chemical formula [C5H5NH]2[Cr2O7]. This compound is named
Cornforth_reagent
Bonds linking one polymer chain to another
unpolymerized or partially polymerized resin is treated with a crosslinking reagent. In vulcanization, sulfur is the cross-linking agent. Its introduction
Cross-link
Chemical compound
Taber’s reagent allows this reaction to occur under ambient conditions, at a large scale, and at a lower cost relative to similar reagents. The reagent was
Taber's_reagent
Test to detect nitrite ions in aqueous solution
drinking water. The Griess diazotization reaction, on which the Griess reagent relies, was first described in 1858 by Peter Griess. The test has also
Griess_test
Chemical compound
containing amine and aldehyde moieties which is used in Ehrlich's reagent and Kovac's reagent to test for indoles. The carbonyl group typically reacts with
Para-Dimethylaminobenzaldehyde
Para-Dimethylaminobenzaldehyde
Stain for fungus parts to identify them
Melzer's reagent (also known as Melzer's iodine reagent, Melzer's solution or informally as Melzer's) is an iodine-based chemical reagent consisting of
Melzer's_reagent
Chemical compound
a dithiol and a diol. DTT is redox reagent also known as Cleland's reagent, after W. Wallace Cleland. The reagent is commonly used in its racemic form
Dithiothreitol
organocopper reagents involve species containing copper-carbon bonds acting as nucleophiles in the presence of organic electrophiles. Organocopper reagents are
Reactions of organocopper reagents
Reactions_of_organocopper_reagents
2019 video game
Cloudgine, and with that, Jones left Reagent to join Epic Games. Polygon reported at the same time that several Reagent programmers also left to go to Epic
Crackdown_3
Fluorinating reagent used in organic chemistry
Ishikawa's reagent is a fluorinating reagent used in organic chemistry. It is used to convert alcohols into alkyl fluorides and carboxylic acids into
Ishikawa_reagent
Chemical compound
harden iron and steel, in electroplating, dyeing wool, as a laboratory reagent, and as a mild oxidizing agent in organic chemistry. The compound has widespread
Potassium_ferricyanide
Chemical compound
often used for the coupling of amino acids for peptide synthesis and as a reagent in organic synthesis. CDI can be prepared straightforwardly by the reaction
Carbonyldiimidazole
Medical diagnostic method
The test employs the Trinder reagent, and is a colour change test resulting from the Trinder reaction. The Trinder reagent, named after P. Trinder of the
Trinder_glucose_activity_test
Method of determining chemical concentration
inorganic compounds, and ions. Often, analysis is completed with the aid of a reagent that reacts with the analyte to produce a colored product. Sometimes an
Colorimetric_analysis
reagent is a solution containing both the molybdate and vanadate ions. It is commonly used in the determination of phosphate ion content. The reagent
Molybdovanadate_reagent
Chemical compound
and solvents. Trifluoromethyltrimethylsilane, known as Ruppert-Prakash reagent, serves as a source of trifluoromethyl anion. Illustrative is the trifluoromethylation
Trifluoromethylation
Chemical test for the reducibility of a sugar
organic chemistry, Fehling's solution (/'feɪlɪŋ/, FAY-ling) is a chemical reagent used to differentiate between water-soluble carbohydrate and ketone (>C=O)
Fehling's_solution
Chemical reaction in organic chemistry
(CH3)2SCH2 (known as Corey–Chaykovsky reagents) by Corey and Chaykovsky as efficient methylene-transfer reagents established the reaction as a part of
Johnson–Corey–Chaykovsky reaction
Johnson–Corey–Chaykovsky_reaction
Chemical reaction
Simmons–Smith reagent is used. The Simmons–Smith reaction is rarely used in it original form and a number of modifications to both the zinc reagent and carbenoid
Simmons–Smith_reaction
Method to determine protein concentration
5 mg/mL), similar to Lowry protein assay, Bradford protein assay or biuret reagent. The total protein concentration is exhibited by a color change of the
Bicinchoninic_acid_assay
Chemical reagent used to differentiate 1°, 2°, 3° Alcohols
"Lucas' reagent" is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. This solution is used to classify alcohols of low molecular
Lucas'_reagent
Production of peptides
1999.00059.x. PMID 10424350. "Cleavage Cocktails; Reagent B; Reagent H; Reagent K; Reagent L; Reagent R". AAPPTEC. Retrieved 13 November 2022. Dick F (1995)
Peptide_synthesis
Biochemical colorimetric method
Folin–Ciocalteu reagent and oxidation of aromatic residues (mainly tryptophan, also tyrosine). Proper caution must be taken when dealing with the Folin's reagent, which
Lowry_protein_assay
Organic compound
compounds, and a subclass of zwitterions. They appear in organic chemistry as reagents or reactive intermediates. The class name "ylide" for the compound should
Ylide
Rosenthal's reagent is a metallocene bis(trimethylsilyl)acetylene complex with zirconium (Cp2Zr) or titanium (Cp2Ti) used as central atom of the metallocene
Rosenthal's_reagent
Chemical compound
vanillin procedure. The DMACA reagent may be superior to the vanillin procedure for the detection of catechins. The DMACA reagent changes color over several
P-Dimethylaminocinnamaldehyde
Organic chemistry named reaction
that has also found use in the staining of biological tissues. The Schiff reagent is the reaction product of a dye formulation such as fuchsin and sodium
Schiff_test
Chemical reaction
surface of celite also known as Fétizon's reagent first employed by Marcel Fétizon in 1968. It is a mild reagent, suitable for both acid and base sensitive
Fétizon_oxidation
Substance used for chemical testing
Dille–Koppanyi reagent Folin's reagent Froehde reagent Mandelin reagent Marquis reagent Mecke reagent Simon's reagent Zwikker reagent Horowitz, Benjamin
Liebermann_reagent
Chemical compound
Perchloric acid is a mineral acid with the formula HClO4. It is an oxoacid of chlorine. Usually found as an aqueous solution, this colorless compound is
Perchloric_acid
Chemical compound
The TASF reagent or tris(dimethylamino)sulfonium difluorotrimethylsilicate is a reagent in organic chemistry with structural formula [((CH3)2N)3S]+[F2Si(CH3)3]−
TASF_reagent
Chemical compound
((7-azabenzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate) is a reagent used to prepare amides from carboxylic acids and amines in the context
PyAOP_reagent
Transfer of an alkyl group from one molecule to another
carbanion, or a carbene (or their equivalents). Alkylating agents are reagents for effecting alkylation. Alkyl groups can also be removed in a process
Alkylation
It is advised to check the references for photos of reaction results. Reagent testers might show the colour of the desired substance while not showing
List of reagent testing color charts
List_of_reagent_testing_color_charts
The Dille–Koppanyi reagent is used as a simple spot-test to presumptively identify barbiturates. It is composed of a mixture of two solutions. Part A
Dille–Koppanyi_reagent
Chemical compound
chloride converts it to Schwartz's reagent. Zirconocene dichloride can also be used to prepare the Negishi reagent, Cp2Zr(η2-butene), which can be used
Zirconocene_dichloride
Chemical compound
Yariv reagent (1,3,5-tri(p-glycosyloxyphenylazo)-2,4,6-trihydroxybenzene) is a glycosylated phenolic compound that binds strongly to galactans and arabinogalactan
Yariv_reagent
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