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Organic reagents

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 CAS MF
PI379 PI379 119344-86-4 C24H32N2O2
2,4,6-Trichloroiodobenzene 2,4,6-Trichloroiodobenzene 6324-50-1 C6H2Cl3I
2,2-Dimethylpropyltrifluoroborate potassium salt 2,2-Dimethylpropyltrifluoroborate potassium salt 1150655-02-9 C5H11BF3K
2,6-Difluoro-3-hydroxybenzeneboronic acid 2,6-Difluoro-3-hydroxybenzeneboronic acid 957065-86-0 C6H5BF2O3
2-Propenoic acid, triphenylmethyl ester 2-Propenoic acid, triphenylmethyl ester 14989-78-7 C22H18O2
2,4-DIPROPOXYPHENYLBORONIC ACID 2,4-DIPROPOXYPHENYLBORONIC ACID 150145-25-8 C12H19BO4
Methyl Tripropylammonium Chloride Methyl Tripropylammonium Chloride C10H24ClN
4-Carboxynaphthalene-1-boronic acid 4-Carboxynaphthalene-1-boronic acid 332398-57-9 C11H9BO4
Methyl perfluoroisobutyl ether Methyl perfluoroisobutyl ether 163702-08-7 C5H3F9O
(2-chloro-2-oxo-1-phenylethyl)ammonium chloride (2-chloro-2-oxo-1-phenylethyl)ammonium chloride 5321-31-3 C8H9Cl2NO
Benzoic acid, C12-15-alkyl esters Benzoic acid, C12-15-alkyl esters 68411-27-8 C19H30O2
(6-FORMYLPYRIDIN-3-YL)BORONIC ACID (6-FORMYLPYRIDIN-3-YL)BORONIC ACID 1322001-30-8 C6H6BNO3
benzylethyldimethylammonium chloride benzylethyldimethylammonium chloride 5197-80-8 C11H18ClN
4-BROMO-4'-METHOXYBENZOPHENONE 4-BROMO-4'-METHOXYBENZOPHENONE 54118-75-1 C14H11BrO2
2-CHLORO-5-(TRIFLUOROMETHOXY)PHENYLBORONIC ACID 2-CHLORO-5-(TRIFLUOROMETHOXY)PHENYLBORONIC ACID 1022922-16-2 C7H5BClF3O3
1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE 1-ETHYL-1-METHYLPYRROLIDINIUM BROMIDE 69227-51-6 C7H16BrN
ETHYLENE GLYCOL MONO-TERT-BUTYL ETHER ETHYLENE GLYCOL MONO-TERT-BUTYL ETHER 7580-85-0 C6H14O2
4-(1-PIPERIDINYL)PHENYLBORONIC ACID HCL 4-(1-PIPERIDINYL)PHENYLBORONIC ACID HCL 229009-42-1 C11H16BNO2
2-Chloro-5-propoxyphenylboronic acid 2-Chloro-5-propoxyphenylboronic acid 1256346-14-1 C9H12BClO3
3-Isopropoxy-5-methylphenylboronic acid 3-Isopropoxy-5-methylphenylboronic acid 1256345-76-2 C10H15BO3
3-Methyl-5-propoxyphenylboronic acid 3-Methyl-5-propoxyphenylboronic acid 1256346-06-1 C10H15BO3
Tris(tribromoneopenthyl)phosphate Tris(tribromoneopenthyl)phosphate 19186-97-1 C15H24Br9O4P
1426129-50-1 enantioMer 1426129-50-1 enantioMer 153037-40-2 C20H25NO3
Hydroxyl-terminated polybutadiene Hydroxyl-terminated polybutadiene 69102-90-5
DL-Mandelic acid DL-Mandelic acid 611-72-3 C8H8O3
potassium 3-hydroxybutyrate potassium 3-hydroxybutyrate 39650-04-9 C4H9KO3
2,2'-(9H-fluorene-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 2,2'-(9H-fluorene-2,6-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) 467219-11-0 C25H32B2O4
dibenzo[b,d]furan-3-ylboronic acid dibenzo[b,d]furan-3-ylboronic acid 395087-89-5 C12H9BO3
5-Methoxy-4-methylpyridine-3-boronic acid 5-Methoxy-4-methylpyridine-3-boronic acid 1451391-97-1 C7H10BNO3
diethyl 2,4-dibromopentanedioate diethyl 2,4-dibromopentanedioate 870-78-0 C9H14Br2O4
1,1,1-trifluoro-N-[(11bR)-8,9,10,11,12,13,14,15-octahydro-2,6-di-1-naphthalenyl-8-oxidodinaphtho[2,1-d:1',2'f][1,3,2]dioxaphosphepin-4-yl]-Methanesulfonamide 1,1,1-trifluoro-N-[(11bR)-8,9,10,11,12,13,14,15-octahydro-2,6-di-1-naphthalenyl-8-oxidodinaphtho[2,1-d:1',2'f][1,3,2]dioxaphosphepin-4-yl]-Methanesulfonamide 1227374-66-4 C41H33F3NO5PS
4-(Azetidine-1-carbonyl)phenylboronic Acid 4-(Azetidine-1-carbonyl)phenylboronic Acid 1025664-35-0 C10H12BNO3
9-Phenanthreneboronic acid neopentylglycol ester 9-Phenanthreneboronic acid neopentylglycol ester 1416371-19-1 C19H19BO2
Dodecylethyldimethylammonium bromide Dodecylethyldimethylammonium bromide 68207-00-1 C16H36BrN
4-(N-OCTYL)BENZENEBORONIC ACID 4-(N-OCTYL)BENZENEBORONIC ACID 133997-05-4 C14H23BO2
Trityl tetrakis(pentafluorophenyl)borate Trityl tetrakis(pentafluorophenyl)borate 136040-19-2 C43H15BF20
5-Fluoro-2-hydroxypyridine-4-boronic acid 5-Fluoro-2-hydroxypyridine-4-boronic acid 1427305-76-7 C5H5BFNO3
2,5-BIS(TRIFLUOROMETHYL)BENZENEBORONIC ACID 2,5-BIS(TRIFLUOROMETHYL)BENZENEBORONIC ACID 196083-18-8 C8H5BF6O2
Triphenylsulfonium 10-Camphorsulfonate Triphenylsulfonium 10-Camphorsulfonate 227199-92-0 C28H30O4S2
2,1,3-Benzothiadiazole-4,7-diboronic acid 2,1,3-Benzothiadiazole-4,7-diboronic acid 1332458-85-1 C6H6B2N2O4S
3-FLUORO-4-ISOPROPOXYPHENYLBORONIC ACID 3-FLUORO-4-ISOPROPOXYPHENYLBORONIC ACID 480438-54-8 C9H12BFO3
4-ETHOXYBIPHENYL-4'-BORONIC ACID 4-ETHOXYBIPHENYL-4'-BORONIC ACID 182344-29-2 C14H15BO3
BENZYLDIMETHYLSTEARYLAMMONIUM CHLORIDE BENZYLDIMETHYLSTEARYLAMMONIUM CHLORIDE 206752-43-4 C6H5CH2N[(CH2)17CH3](CH3)2ClH2O
METHYL 3-(4 4 5 5-TETRAMETHYL-1 3 2-DIO& METHYL 3-(4 4 5 5-TETRAMETHYL-1 3 2-DIO& 352534-74-8 C15H27BO4
Tianeptine Tianeptine 72797-41-2 C21H25ClN2O4S
2-ETHOXY-3-FORMYL-5-METHYLPHENYLBORONIC 2-ETHOXY-3-FORMYL-5-METHYLPHENYLBORONIC 480424-54-2 C10H13BO4
TRIPHENYLPHOSPHINE(2 5-NORBORNADIENE)RH& TRIPHENYLPHOSPHINE(2 5-NORBORNADIENE)RH& 305367-01-5 C25H23BF4PRh-
TRANS-3-PHENYL-1-PROPEN-1-YLBORONIC ACID TRANS-3-PHENYL-1-PROPEN-1-YLBORONIC ACID 129423-29-6 C9H11BO2
Boronic acid, B,B'-[5''-(4'-borono[1,1'-biphenyl]-4-yl)[1,1':4',1'':3'',1''':4''',1''''-quinquephenyl]-4,4''''-diyl]bis- Boronic acid, B,B'-[5''-(4'-borono[1,1'-biphenyl]-4-yl)[1,1':4',1'':3'',1''':4''',1''''-quinquephenyl]-4,4''''-diyl]bis- 1290630-80-6 C42H33B3O6
Wuhan ethylene glycol Wuhan ethylene glycol
Pressure steam sterilization biological culture indicator Pressure steam sterilization biological culture indicator
Crystal Violet Methanol Solution Crystal Violet Methanol Solution
ETHYLENE GLYCOL ETHYLENE GLYCOL
TRIETHYLMETHYLAMMONIUM HYDROXIDE TRIETHYLMETHYLAMMONIUM HYDROXIDE 109334-81-8 C7H19NO
Benzyl tripropyl ammonium bromide Benzyl tripropyl ammonium bromide 5350-75-4 C16H28BrN
Boronic acid, (3-cyano-5-fluorophenyl)- (9CI) Boronic acid, (3-cyano-5-fluorophenyl)- (9CI) 304858-67-1 C7H5BFNO2
4-(4-Methylpiperazinylmethyl)benzoyl chloride dihydrochloride 4-(4-Methylpiperazinylmethyl)benzoyl chloride dihydrochloride 106261-64-7 C13H18Cl2N2O
benzofuran-6-carboxylic acid benzofuran-6-carboxylic acid 77095-51-3 C9H6O3
1,3-Benzenedicarboxylic acid, diphenyl ester, polymer with (1,1-biphenyl)-3,3,4,4-tetramine 1,3-Benzenedicarboxylic acid, diphenyl ester, polymer with (1,1-biphenyl)-3,3,4,4-tetramine 25928-81-8 C32H28N4O4
3-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylethynyl-trimethylsilane 3-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylethynyl-trimethylsilane 915402-03-8 C17H25BO2Si
4-Boc-3(R)-morpholinecarboxylic acid 4-Boc-3(R)-morpholinecarboxylic acid 869681-70-9 C10H17NO5
Benzalkonium chloride Benzalkonium chloride 8045-21-4
Dioctyl dimethyl ammonium bromide Dioctyl dimethyl ammonium bromide C18H40BrN
Calcium-based grease Calcium-based grease
2-Fluorobenzylboronic acid pinacol ester 2-Fluorobenzylboronic acid pinacol ester 517920-60-4 C13H18BFO2
1,3,2-Dioxaborolane, 2-(4',6'-diphenyl[1,1':2',1''-terphenyl]-4-yl)-4,4,5,5-tetramethyl- 1,3,2-Dioxaborolane, 2-(4',6'-diphenyl[1,1':2',1''-terphenyl]-4-yl)-4,4,5,5-tetramethyl- 2576432-67-0 C36H33BO2
6-BROMO-4-INDAZOLECARBOXYLIC ACID METHYL ESTER 6-BROMO-4-INDAZOLECARBOXYLIC ACID METHYL ESTER 885518-49-0 C9H7BrN2O2
1-Carboxy-1-methylethoxyammonium chloride 1-Carboxy-1-methylethoxyammonium chloride 89766-91-6 C4H10ClNO3
BENZYLTRIETHYLAMMONIUM BOROHYDRIDE BENZYLTRIETHYLAMMONIUM BOROHYDRIDE 85874-45-9 C13H26BN
3,3-Dimethylallylboronic  acid  pinacol  ester,  2-(3-Methyl-but-2-enyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 3,3-Dimethylallylboronic acid pinacol ester, 2-(3-Methyl-but-2-enyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 141550-13-2 C11H21BO2
BB1 BB1 1104636-68-1 C7H9BBrNO4
Methyl 2,6-dibromopyridine-4-carboxylate Methyl 2,6-dibromopyridine-4-carboxylate 119308-57-5 C7H5Br2NO2
PHENYLACETIC ACID-3-BORONIC ACID PINACOL ESTER PHENYLACETIC ACID-3-BORONIC ACID PINACOL ESTER C14H19BO4
3,4,5-TRIFLUOROPHENYLBORONIC ACID, PINACOL ESTER 3,4,5-TRIFLUOROPHENYLBORONIC ACID, PINACOL ESTER 827614-70-0 C12H14BF3O2
2-Methylpiperidine 2-Methylpiperidine 109-05-7 C6H13N
4-(N,N-DIMETHYLAMINOCARBONYL)PHENYLBORONIC ACID 4-(N,N-DIMETHYLAMINOCARBONYL)PHENYLBORONIC ACID 405520-68-5 C9H12BNO3
2-CHLORO-6-METHOXYPYRIDINE-4-BORONIC ACID PINACOL ESTER 2-CHLORO-6-METHOXYPYRIDINE-4-BORONIC ACID PINACOL ESTER 697739-24-5 C12H17BClNO3
3-Bromo-5-(methoxycarbonyl)benzeneboronic acid pinacol ester 3-Bromo-5-(methoxycarbonyl)benzeneboronic acid pinacol ester 1025718-78-8 C14H18BBrO4
4,4,5,5-Tetramethyl-2-(4-phenylethynyl)[1,3,2]dioxaborolane 4,4,5,5-Tetramethyl-2-(4-phenylethynyl)[1,3,2]dioxaborolane 1190376-20-5 C20H21BO2
Potassium ethyltrifluoroborate Potassium ethyltrifluoroborate 882871-21-8 C2H4BF3K
4-*difluoro(3,4,5-trifluorophenoxy)-methyl]-3,5-difluoro-4'-propyl-1,1'-biphenyl 4-*difluoro(3,4,5-trifluorophenoxy)-methyl]-3,5-difluoro-4'-propyl-1,1'-biphenyl 303186-20-1 C22H15F7O
4-(3-Fluorophenoxy)phenylboronic acid 4-(3-Fluorophenoxy)phenylboronic acid 1029438-36-5 C12H10BFO3
4,5-Dichloro-2-(2-methoxyethoxy)phenylboronic acid 4,5-Dichloro-2-(2-methoxyethoxy)phenylboronic acid 1256354-99-0 C9H11BCl2O4
Iodomethylboronic acid, pinacol ester Iodomethylboronic acid, pinacol ester 70557-99-2 C7H14BIO2
Cyclobutylboronic acid MIDA ester Cyclobutylboronic acid MIDA ester 1104637-37-7 C9H14BNO4
4,4,5,5-Tetramethyl-2-(1-propyn-1-yl)-1,3,2-dioxaborolane 4,4,5,5-Tetramethyl-2-(1-propyn-1-yl)-1,3,2-dioxaborolane 347389-75-7 C9H15BO2
3-(1-phenyl-1H-benzo[d]iMidazol-2-yl)phenylboronic acid 3-(1-phenyl-1H-benzo[d]iMidazol-2-yl)phenylboronic acid 1214723-26-8 C19H15BN2O2
AEEA-AEEA AEEA-AEEA 1143516-05-5 C12H24N2O7
2-Chloro-1-MethyliMidazole-5-boronic Acid Pinacol Ester 2-Chloro-1-MethyliMidazole-5-boronic Acid Pinacol Ester 1315281-29-8 C10H16BClN2O2
5-(tert-butoxycarbonyl)-3a,4,5,6,7,7a-hexahydrothieno[3,2-c]pyridin-2-ylboronic acid 5-(tert-butoxycarbonyl)-3a,4,5,6,7,7a-hexahydrothieno[3,2-c]pyridin-2-ylboronic acid 1078151-34-4 C12H18BNO4S
Cetrimide Agar Cetrimide Agar
2-(MethylcarbaMoyl)benzeneboronic acid 2-(MethylcarbaMoyl)benzeneboronic acid 874459-85-5 C8H10BNO3
BenzenaMine, 5-chloro-2-fluoro-3-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- BenzenaMine, 5-chloro-2-fluoro-3-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)- 1269232-96-3 C12H16BClFNO2
1,2,4,5-Tetrakis(4-carboxyphenyl)benzene 1,2,4,5-Tetrakis(4-carboxyphenyl)benzene 1078153-58-8 C34H22O8
1-Boc-indole-4-boronic Acid Pinacol Ester 1-Boc-indole-4-boronic Acid Pinacol Ester 893441-86-6 C19H26BNO4
4-Formyl-2,6-dimethylphenylboronic acid 4-Formyl-2,6-dimethylphenylboronic acid 1228829-13-7 C9H11BO3
[4-Methyl-2-(1H-pyrazol-1-yl)phenyl]boronic acid [4-Methyl-2-(1H-pyrazol-1-yl)phenyl]boronic acid 1287753-43-8 C10H11BN2O2
6-Borono-3-chloroisoquinoline, 6-Borono-3-chloro-2-azanaphthalene 6-Borono-3-chloroisoquinoline, 6-Borono-3-chloro-2-azanaphthalene 1800483-72-0 C9H7BClNO2
PGUQU 3F PGUQU 3F 303186-36-9 C28H18F8O
(3-(p-tolylcarbaMoyl)phenyl)boronic acid (3-(p-tolylcarbaMoyl)phenyl)boronic acid 1072946-03-2 C14H14BNO3
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