Esters Aromatic acids fatty acid Fatty alcohols Boric acid Cyanide / nitrile Aromatic ketones Aromatic aldehydes Halogenated aliphatic hydrocarbons aliphatic ketones Amide Ethers Aromatics Aromatic alcohol Phosphine ligand Phenols Thiol / thiol Silane Acyl halide Sulfonates / Sulfinates salts Cyanate ester / isocyanate Nitro compounds Imide Olefin (cyclic and acyclic) The polycyclic compound Hydrazine Amine salt (ammonium salt) Aliphatic aldehydes Bicyclic compound Oxime Tricyclic compound Alkanes Sulfonyl halide Phosphonate / phosphonate Phosphorus halide Alkyne Carboxylic anhydride Urea Phosphorus-containing compound Siloxane Azo, diazo compound Ionic Liquids Thiocyanate / isothiocyanate Borate Sulfonates / Sulfinates Selenium compounds Guanidine salt Borane Thiourea Thiolate tetrafluoroborate Thiol ester Polycyclic compound Crown ether Sulfone, sulfoxide compound Hydrazone Imide, amidine Polyamines Tosylate Epoxide Azide Hydroxylamine Cyclodextrin
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Organic reagents

Esters Aromatic acids fatty acid Fatty alcohols Boric acid Cyanide / nitrile Aromatic ketones Aromatic aldehydes Halogenated aliphatic hydrocarbons aliphatic ketones Amide Ethers Aromatics Aromatic alcohol Phosphine ligand Phenols Thiol / thiol Silane Acyl halide Sulfonates / Sulfinates salts Cyanate ester / isocyanate Nitro compounds Imide Olefin (cyclic and acyclic) The polycyclic compound Hydrazine Amine salt (ammonium salt) Aliphatic aldehydes Bicyclic compound Oxime Tricyclic compound Alkanes Sulfonyl halide Phosphonate / phosphonate Phosphorus halide Alkyne Carboxylic anhydride Urea Phosphorus-containing compound Siloxane Azo, diazo compound Ionic Liquids Thiocyanate / isothiocyanate Borate Sulfonates / Sulfinates Selenium compounds Guanidine salt Borane Thiourea Thiolate tetrafluoroborate Thiol ester Polycyclic compound Crown ether Sulfone, sulfoxide compound Hydrazone Imide, amidine Polyamines Tosylate Epoxide Azide Hydroxylamine Cyclodextrin
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From early AD to mid-19 century, people mainly use the natural organic substance (such as animal and plant extracts) for qualitative analysis or quantitative analysis. From the second half of the 19th century to the 1920s, it had begun to appear of artificially synthetic organic reagent such as using potassium acetate xanthan for test of nickel, copper, and molybdenum; using morin for test of aluminum; using diazo coupling reaction for the detection of Nitrite; using α-β-nitroso naphthol for detection of cobalt; using dimethyglyoxime for nickel test.

After the proposal of the special-effects group in the 1930s and the proposal of theoretical analysis of functional groups theory in 1950s, people had carried out large-scale screen of organic reagents in search of special-effects analysis groups for different ions and had successfully synthesized a lot of agents of practical value (such as copper reagents, new copper agent, cadmium reagents, beryllium reagent, thorium reagents, etc.). Before the 1950s, the complex compound, in analytic chemistry, is mainly used in the aspects of the precipitation reaction of a binary chelate for the qualitative detection, precipitate isolation and gravimetric separation and other aspects. In the early 1950s and 1960, it is mainly in the form of complexometric titration. From the beginning of the late 1960s, the main focus has been moved to the photometric analysis. Meanwhile, it has been also developed of chelate organic solvent extraction.

8-hydroxy quinoline, hydrazones, oximes, hydroxamic acids, polyphenols, 1, 10-phenanthroline, phosphorus-oxygen extractant, β- diketones, triphenylmethane acid dye, xanthene dyes and azo dyes and other agents has all been widely studied and applied. On the other hand, the structural theoretical research (such as electronic effects, spatial effects and substituent effects) of the organic reagent can further facilitate the development of new-type organic reagents such as heterocyclic azo reagent. During this period, it has been also developed of monoazo chromotropic acid-type and disazo chromotropic acid-type reagent. During the mid-1970s, the chelating resin and adsorbents have achieved rapid development. Since the 1980s, Chinese researchers of analytical chemistry have made progress in the field of the synthesis and application of asymmetric disazo chromotropic acid.

Organic chemical reagents have wide application in analytic chemistry and are mainly used in solvents, precipitation agents, complexing agents, indicator, coloring reagent and surface active agent, etc. In order to adapt to a variety of analytical needs, sometimes it is required to purify certain reagents. For example, liquid organic reagent is often purified by distillation while solid substance is often purified through crystallization and sublimation. Substance having a high vapor pressure, namely having low purification boiling point and undergoing no decomposition under boiling temperature commonly applied atmospheric distillation; for less volatile and water-insoluble substance, namely having high purification point or undergoing decomposition under boiling temperature, we can apply vacuum distillation or steam distillation for purification of it.

Distillation is a commonly used method for laboratory purification of organic reagent. Conventional distillation apparatus generally comprises distiller, condenser and receiver, three parts with auxiliary section also containing heater, a thermometer, a wetted tube and cork.

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Structure:
Chemical Name:
(1S,1S',2R,2R')-(+)-1,1'-DI-T-BUTYL-[2,2']-DIPHOSPHOLANE
CAS:
470480-32-1
MF:
C16H32P2
Structure:
Chemical Name:
(R)-(+)-2,2'-Bis[di(3,5-di-t-butylphenyl)phosphino]-6,6'-dimethoxy-1,1'-biphenyl,min.97%
CAS:
192138-05-9
MF:
C70H96O2P2
Structure:
Chemical Name:
Sodiumhydroxymethylenesulfonate
MF:
CH2Na2O7S2
Structure:
Chemical Name:
1,2,3-cyclopropanetri-carboxylic acid
CAS:
705-35-1
MF:
C6H6O6
Chemical Name:
1,2- DIMETHYL SULFONIC ACID SODIUM BENZENE
Structure:
Chemical Name:
1-MERCAPTO-2-PROPANOL
CAS:
1068-47-9
MF:
C3H8OS
Structure:
Chemical Name:
1-Bromocyclohex-1-ene
CAS:
2044-08-8
MF:
C6H9Br
Structure:
Chemical Name:
1-(2-CARBOXYPHENYL)PIPERAZINE
MF:
C11H14N2O2
Structure:
Chemical Name:
2-Phenylanthracene
CAS:
1981-38-0
MF:
C20H14
Structure:
Chemical Name:
4-nitrobenzamidine
CAS:
25412-75-3
MF:
C7H7N3O2
Structure:
Chemical Name:
2-methoxyethanethiol
CAS:
10494-75-4
MF:
C3H8OS
Structure:
Chemical Name:
potassium dodecylbenzenesulphonate
CAS:
27177-77-1
MF:
C18H29KO3S
Structure:
Chemical Name:
BENZENESULFONYL AZIDE POLYMER-SUPPORTED 1.8-2.2 MMOL/G ON POLYSTYRENE
MF:
C6H5N3O2S
Structure:
Chemical Name:
O-(2-AZIDOETHYL)-O-(2-(DIGLYCOLYL-AMINO)ETHYL)EG-7
CAS:
846549-37-9
MF:
C22H42N4O12
Structure:
Chemical Name:
2-Bromophenylmethylsulfoxide
CAS:
7321-58-6
MF:
C7H7BrOS
Structure:
Chemical Name:
4(1H)-Pyrimidinethione, 2-amino-6-methyl- (9CI)
CAS:
6307-44-4
MF:
C5H7N3S
Structure:
Chemical Name:
2-(Dicyclohexylphosphino)-1-(2,4,6-trimethyl-phenyl)-1H-imidazole
CAS:
794527-14-3
MF:
C24H35N2P
Chemical Name:
α-Olefin sulfonic acid salts
Structure:
Chemical Name:
3,3-Bis(3-methyl-4-hydroxyphenyl)indoline-2-on
CAS:
47465-97-4
MF:
C22H19NO3
Structure:
Chemical Name:
METHYL CYCLOHEXANEACETATE
CAS:
14352-61-5
MF:
C9H16O2
Structure:
Chemical Name:
1,2,3,4-TETRAHYDRO-2-NAPHTHOL
CAS:
530-91-6
MF:
C10H12O
Structure:
Chemical Name:
TRIUNDECANOIN
CAS:
13552-80-2
MF:
C36H68O6
Structure:
Chemical Name:
(+)-N-METHYLEPHEDRINE
CAS:
42151-56-4
MF:
C11H17NO
Structure:
Chemical Name:
2-Carboxyethyl acrylate
CAS:
24615-84-7
MF:
C6H8O4
Structure:
Chemical Name:
ANTHRAQUINONE-1-DIAZONIUM CHLORIDE
CAS:
84195-93-7
MF:
C14H7Cl4N2O2Zn-
Structure:
Chemical Name:
5-Methylsalicylamide
CAS:
39506-61-1
MF:
C8H9NO2
Structure:
Chemical Name:
3-(TRIPHENYLPHOSPHONIO)PROPANE-1-SULFONI
CAS:
439937-65-2
MF:
C28H29O6PS2
Structure:
Chemical Name:
R(-)-2-[2-(DIPHENYLPHOSPHINO)PHENYL]-4-PHENYL-2-OXAZOLINE
CAS:
167171-03-1
MF:
C27H22NOP
Structure:
Chemical Name:
2-(2-METHOXYETHOXY)ETHANETHIOL 97
CAS:
88778-21-6
MF:
C5H12O2S
Structure:
Chemical Name:
4-DODECYLPHENOL MIXTURE OF ISOMERS
CAS:
27193-86-8
MF:
C18H30O
Structure:
Chemical Name:
(S)-1-{(S)-2-[2-(DICYCLOHEXYLPHOSPHINO)PHENYL]FERROCENYL}ETHYLBIS[3,5-BIS(TRIFLU
CAS:
849925-22-0
MF:
C41H39F12P2.C5H5.Fe
Structure:
Chemical Name:
(R)-1-{(S)-2-[BIS(4-METHOXY-3,5-DIMETHYLPHENYL)PHOSPHINO]FERROCENYL}-ETHYLDI(3,5
CAS:
849924-45-4
MF:
C46H46FeO2P2
Structure:
Chemical Name:
(S)-1-{(R)-2-[DI(2-FURYL)PHOSPHINO]FERROCENYL}ETHYLBIS(2-METHYLPHENYL)PHOSPHINE
CAS:
849924-74-9
MF:
C34H26FeO2P2
Structure:
Chemical Name:
AMMONIUM SULFOBETAINE-3, 5% SOLUTION IN WATER
CAS:
103683-20-1
MF:
C22H46N2O4S
Structure:
Chemical Name:
3-(TRIPHENYLPHOSPHONIO)PROPANE-1-SULFONA
CAS:
116154-22-4
MF:
C21H21O3PS
Structure:
Chemical Name:
S(-)-2 2-BIS-(DIPHENYLPHOSPHINO)-6 6-DIM
CAS:
133545-17-2
MF:
C38H32O2P2
Structure:
Chemical Name:
3-TRIFLUOROMETHYLTHIOPHENYL ISOTHIOCYAN&
CAS:
42729-26-0
MF:
C8H4F3NS2
Structure:
Chemical Name:
ANTHRAQUINONE-1 5-DISULFONIC ACID
CAS:
206659-04-3
MF:
C14H6Na2O8S2
Structure:
Chemical Name:
GUANIDINE
CAS:
90332-86-8
MF:
CH3N3O
Structure:
Chemical Name:
4,4'-DIMETHOXY DIPHENYLSULFOXIDE
MF:
C14H14O3S
Structure:
Chemical Name:
1-HEXADECYL-3-METHYLIMIDAZOLIUM HEXAFLUOROPHOSPHATE
CAS:
219947-95-2
MF:
C20H39F6N2P
Structure:
Chemical Name:
5-CHLORO-6-(2,3-DICHLOROPHENOXY)-2-METHYLSULFONYL-1H-BENZIMIDAZOLE
CAS:
106791-37-1
MF:
C14H9Cl3N2O3S
Structure:
Chemical Name:
1-BUTENYLBORONIC ACID
CAS:
852458-12-9
MF:
C4H9BO2
Structure:
Chemical Name:
TETRAETHYL 1,1,2,2-ETHANETETRACARBOXYLATE
CAS:
632-56-4
MF:
C14H22O8
Structure:
Chemical Name:
FENSULFOTHION-SULFONE
MF:
C11H17O5PS2
Structure:
Chemical Name:
3,4-HEXANEDITHIOL
MF:
C6H14S2
Structure:
Chemical Name:
3-(2-METHOXY-PHENYL)-PROPIONALDEHYDE
CAS:
33538-83-9
MF:
C10H12O2
Structure:
Chemical Name:
4-(AMINOMETHYL)BENZENEBORONIC ACID
CAS:
51239-46-4
MF:
C7H10BNO2
Structure:
Chemical Name:
3-HYDROXYPROPIONAMIDE
CAS:
2651-43-6
MF:
C3H7NO2
Structure:
Chemical Name:
Methyl cyanoformate
CAS:
17640-15-2
MF:
C3H3NO2
Structure:
Chemical Name:
2-BROMODODECANOIC ACID
CAS:
111-56-8
MF:
C12H23BrO2
Structure:
Chemical Name:
2-Hydroxypropyl methacrylate
CAS:
923-26-2
MF:
C7H12O3
Structure:
Chemical Name:
potassium decafluoro(pentafluoroethyl)cyclohexanesulphonate
CAS:
67584-42-3
MF:
C8F15KO3S
Chemical Name:
Sulfonic acids, C13-17-sec-alkane, sodium salts
CAS:
85711-69-9
Structure:
Chemical Name:
methylsulphonal
CAS:
76-20-0
MF:
C8H18O4S2
Structure:
Chemical Name:
gloxazone
CAS:
2507-91-7
MF:
C8H16N6OS2
Structure:
Chemical Name:
nihydrazone
CAS:
67-28-7
MF:
C7H7N3O4
Structure:
Chemical Name:
sodium diisopropylnaphthalenesulphonate
CAS:
1322-93-6
MF:
C16H19NaO3S
Structure:
Chemical Name:
formetanate
CAS:
22259-30-9
MF:
C11H15N3O2
Structure:
Chemical Name:
N-METHYL HYDROXYLAMINE HC
MF:
CH5NO
Structure:
Chemical Name:
Diaminodiphenylthiourea
MF:
C13H14N4S
Structure:
Chemical Name:
2,4-Dinitro phenyl ethyl alcohol
CAS:
4836-69-5
MF:
C8H8N2O5
Structure:
Chemical Name:
(R)-(-)-3,3'-BIS(TRIPHENYLSILYL)-1,1'-BINAPHTHYL-2,2'-DIYL HYDROGENPHOSPHATE, 95%
CAS:
791616-55-2
MF:
C56H41O4PSi2
Structure:
Chemical Name:
N-tert-butylhydroxylamine
CAS:
16649-50-6
MF:
C4H11NO
Chemical Name:
CycloguanilEmbonate
Structure:
Chemical Name:
2-ethoxysulfonylethanol
CAS:
58337-44-3
MF:
C4H10O4S
Structure:
Chemical Name:
3-(2,4-difluorophenoxy)propanoic acid
CAS:
777-28-6
MF:
C9H8F2O3
Structure:
Chemical Name:
11-HYDROXYUNDECANOIC ACID
CAS:
3669-80-5
MF:
C11H22O3
Structure:
Chemical Name:
N,N-DIETHYLNIPECOTAMIDE
CAS:
3367-95-1
MF:
C10H20N2O
Structure:
Chemical Name:
2-BROMOETYL-METHYLSULFONE
CAS:
16523-02-7
MF:
C3H7BrO2S
Structure:
Chemical Name:
Bis(11-azidoundecyl) disulfide
CAS:
881375-91-3
MF:
C22H44N6S2
Structure:
Chemical Name:
TRANS-1-DECALONE
CAS:
21370-71-8
MF:
C10H16O
Structure:
Chemical Name:
HEXAKIS-6-(DIMETHYL-TERT-BUTYLSILYL)-ALPHA-CYCLODEXTRIN
CAS:
118646-79-0
MF:
C72H144O30Si6
Structure:
Chemical Name:
3,3,3-trifluoropropyl methansulfonate
CAS:
911116-16-0
MF:
C4H7F3O3S
Structure:
Chemical Name:
6-AMIDINO-2-NAPHTHOL, HYDROCHLORIDE
CAS:
66217-10-5
MF:
C11H11ClN2O
Structure:
Chemical Name:
5-ACETAMIDONAPHTHALENE-1-SULFONYL CHLORIDE
CAS:
52218-37-8
MF:
C12H10ClNO3S
Structure:
Chemical Name:
2,6-DI-O-METHYL-ALPHA-CYCLODEXTRIN
CAS:
51166-72-4
MF:
C48H84O30
Structure:
Chemical Name:
N-(3-CHLORO-PHENYL)HYDROXYLAMINE
CAS:
10468-17-4
MF:
C6H6ClNO
Structure:
Chemical Name:
Cevimeline Sulfoxide
CAS:
124751-36-6
MF:
C10H17NO2S
Structure:
Chemical Name:
1-(3-Methoxypropyl)guanidine
CAS:
100056-66-4
MF:
C5H13N3O
Structure:
Chemical Name:
2-METHYLBENZYL ISOCYANATE
CAS:
56651-58-2
MF:
C9H9NO
Structure:
Chemical Name:
Glycyl diphenylborinate, 95%
CAS:
14335-29-6
MF:
C14H14BNO2
Structure:
Chemical Name:
N-(2-Methoxyphenyl)-2-(di-t-butylphosphino)pyrrole,92% [cataCXiuM POMetB]
CAS:
1053658-91-5
MF:
C19H28NOP
Structure:
Chemical Name:
3,5,5-TriMethylhexyl acrylate
CAS:
45125-03-9
MF:
C12H22O2
Structure:
Chemical Name:
N-tert-Butyl-O-[1-[4-(chloroMethyl)phenyl]ethyl]-N-(2-Methyl-1-phenylpropyl)hydroxylaMine
CAS:
227000-85-3
MF:
C23H32ClNO
Structure:
Chemical Name:
4,4'-(OCTAHYDRO-4,7-METHANO-5H-INDEN-5-YLIDENE) BISPHENOL
CAS:
1943-97-1
MF:
C22H24O2
Structure:
Chemical Name:
2,2-DIMETHYL-1,3-DIOXOLAN-4-YLMETHYL P-TOLUENESULFONATE
CAS:
7305-59-1
MF:
C13H18O5S
Structure:
Chemical Name:
N-METHOXY-N,O-BIS(TRIMETHYLSILYL)CARBAMATE
CAS:
105532-86-3
MF:
C8H21NO3Si2
Structure:
Chemical Name:
METHYL 2-PENTENOATE
CAS:
15790-88-2
MF:
C6H10O2
Structure:
Chemical Name:
PENTAFLUOROPROPYLAMIDINE
CAS:
422-62-8
MF:
C3H3F5N2
Structure:
Chemical Name:
1-PYRENEDECANOIC ACID
CAS:
64701-47-9
MF:
C26H28O2
Structure:
Chemical Name:
ETHYL DIBROMOACETATE
CAS:
617-33-4
MF:
C4H6Br2O2
Structure:
Chemical Name:
ETHYL 2-(3-N-PHTHALIMIDOPROPYL)ACETOACETATE
CAS:
55747-45-0
MF:
C17H19NO5
Structure:
Chemical Name:
TETRABUTYLAMMONIUM METHANESULFONATE
CAS:
65411-49-6
MF:
C17H39NO3S
Structure:
Chemical Name:
TERT-BUTYL N-(4-ISOTHIOCYANATOPHENYL)CARBAMATE
CAS:
89631-75-4
MF:
C12H14N2O2S
Structure:
Chemical Name:
Coumarin 153
CAS:
53518-18-6
MF:
C16H14F3NO2
Structure:
Chemical Name:
(2-AMINOETHYL)-BENZYL CARBAMIC ACID TERT-BUTYL ESTER
MF:
C14H22N2O2
Structure:
Chemical Name:
DIBENZOSUBERENOL
CAS:
10354-00-4
MF:
C15H12O
Structure:
Chemical Name:
(2S,3S)-(-)-3-PHENYLGLYCIDOL
CAS:
104196-23-8
MF:
C9H10O2
Structure:
Chemical Name:
2-NITRO-ALPHA-TOLUENESULFONYL CHLORIDE
CAS:
24974-75-2
MF:
C7H6ClNO4S