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Analysis reagents

Analytical reagent is a class of chemical reagents for analytical testing with being able to provide molecules, ions or radicals in the qualitative or quantitative analysis, and the reaction product being precipitated or colored compound or fluorescent substance and so on. Indicator, titrant and Instrument Analytical Reagents also fall into this category. The most important feature of the analysis reagent is the sensitivity and selectivity, even if the number of the test substance is little or the ion concentration is also small, the reagent can also be used for identification or quantitative determination. E.g., when the magnesium ion concentration is 1.2mg / l, addition of disodium hydrogen phosphate and ammonium chloride can cause precipitation. In the analytical chemistry, people must use selective reagents and group reagent. Selective agent is reagents which only react with limited chemical substances. For example, the silver nitrate is the selective precipitation agent for chloride and bromide. Organic selective agent is able to form specific chelate with a metal ion. For example, chromium azure S, 1- (2- pyridine azo) -2-naphthol (PAN), 4- (2- PYRIDYLAZO) - Inter hydroquinone (PAR), under different conditions, can be used as the selective agent on different metal ions.

The group reagent is reagents which can simultaneously separate many ionic agents. Some agents, under certain conditions, no matter whether with or without the presence of other ions, can only have typical reaction with the test material or ions. These reagent reagents are called specific agents. The specificity of the product is determined by the product. The size, charge density and the electronic arrangement of the reagents and reaction ions must meet certain conditions, otherwise it does not react. Most kinds of inorganic analytical reagents have very excellent selectivity; most organic analytical reagents have very excellent special effects. There are many reagents for the analysis of organic functional groups, such as the Bromocresol Green for qualitative and quantitative determination of organic acids, aldehydes, ketones, etc., ninhydrin, phenylhydrazine, 2,4-dinitrophenylhydrazin and semicarbazide.

classification
(1) Reagents for chemical analysis: testing items for the chemical reaction analysis.
1) Baseline reagent: a pure compound for direct formulation of the standard solution and the standard solution in the volumetric calibration.
2) Indicator: reagent used to indicate the end of the titration reagent and can be classified into pH indicator, redox indicator, adsorption indicator, metal indicator and fluorescent indicator, and so on.

(2) Analysis reagent of Instrument: high-purity compounds dedicated to instrumental analysis.
1) Spectroscopically pure reagents: spectroscopically pure compound, often expressed in the SP; reagents for spectral analysis.
2) Chromatography pure reagents: reagents dedicated to analysis by gas chromatography and liquid chromatography analysis.
3) Deuterated reagents: reagents dedicated to the nuclear resonance instrument analysis.

Purification of organic analytical reagents
Organic reagents are widely used in analysis chemistry and are mainly used in solvents, precipitation agents, complexing agents, indicators, reagents and surface active agents, etc. In order to adapt to a variety of analytical demands, sometimes it is required to apply purification process to certain reagents with organic reagent liquid often being purified by distillation while solid matter can be purified through crystallization or sublimation method. Substance having a high vapor pressure, namely organic reagents with low purification boiling point and without decomposition at boiling temperature being commonly applied atmospheric distillation; for substance of less volatile and slightly-soluble in water, namely organic reagents that can be decomposed at high purification boiling point or higher boiling temperature, we can apply vacuum distillation or steam distillation.

Distillation method for purification of organic reagent is commonly purification process in laboratory. Conventional distillation apparatus generally comprises of three parts including a composition distiller, condenser and receiver as well as auxiliary section heater, a thermometer, a wetted tube, cork and so on.

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Structure Chemical Name CAS MF
3,6-DIDODECYLOXY-4,5-DIMETHYL-1,2-PHENYLENE-BIS(MERCURY CHLORIDE) 3,6-DIDODECYLOXY-4,5-DIMETHYL-1,2-PHENYLENE-BIS(MERCURY CHLORIDE) 178959-28-9 C32H56Cl2Hg2O2
PORAPAK(R) Q PORAPAK(R) Q 9043-77-0 (C10H12.C10H10)x
AQUO-CYANO-COBINAMIDE AQUO-CYANO-COBINAMIDE 13963-62-7 C49H74CoN12O10
SulfaMethoxazole-13C6 SulfaMethoxazole-13C6 1196157-90-0 C10H11N3O3S
LEAD IONOPHORE IV LEAD IONOPHORE IV 145237-46-3 C60H84N4O4S4
2-AMINOFLUBENDAZOLE 2-AMINOFLUBENDAZOLE 82050-13-3 C14H10FN3O
5-Hydroxy-2-[[2-methyl-3-(trifluoromethyl)phenyl]amino]-3-pyridinecarboxylic Acid 5-Hydroxy-2-[[2-methyl-3-(trifluoromethyl)phenyl]amino]-3-pyridinecarboxylic Acid 75369-61-8 C14H11F3N2O3
2,3,6-TRI-O-OCTYL-ALPHA-CYCLODEXTRIN 2,3,6-TRI-O-OCTYL-ALPHA-CYCLODEXTRIN 140395-31-9 C180H348O30
(11β)-21-Chloro-9-fluoro-11-hydroxy-16-Methylpregna-1,4,16-triene-3,20-dione (11β)-21-Chloro-9-fluoro-11-hydroxy-16-Methylpregna-1,4,16-triene-3,20-dione 1356190-17-4 C22H26ClFO3
retronecine retronecine 480-85-3 C8H13NO2
CHLORIDE IONOPHORE IV CHLORIDE IONOPHORE IV 187404-67-7 C33H50N4OS2
WITHANOLIDE B(P)(NEW) WITHANOLIDE B(P)(NEW) 56973-41-2 C28H38O5
TUNGSTO-PHOSPHORIC ACID SODIUM SALT EXT& TUNGSTO-PHOSPHORIC ACID SODIUM SALT EXT& 12026-98-1 NaO40PW12(-2)
4',5'-DIBROMOFLUORESCEIN OCTADECYL ESTER 4',5'-DIBROMOFLUORESCEIN OCTADECYL ESTER 138833-47-3 C38H46Br2O5
FLUORESCEIN MERCURICACETATE  FOR THE FLUORESCEIN MERCURICACETATE FOR THE 32382-27-7 C24H16Hg2O9
5-OCTADECANOYLOXY-2-(4-NITROPHENYLAZO)PHENOL 5-OCTADECANOYLOXY-2-(4-NITROPHENYLAZO)PHENOL 124522-01-6 C30H43N3O5
D-ALPHA-TOCOTRIENOL D-ALPHA-TOCOTRIENOL 58864-81-6 C29H44O2
Buffer solution for optode membranes pH 7.6
		
	Buffer solution for optode membranes pH 7.6
DIETHYLAMINOMETHYL POLYSTYRENE DIETHYLAMINOMETHYL POLYSTYRENE C39H57N3X2
LITMUSPAPER,RED,REAGENT,ACS LITMUSPAPER,RED,REAGENT,ACS
IMPAQ RG1080 C18 IMPAQ RG1080 C18 72245-35-3 C20H43ClO2Si2
Sulfadoxine-d3 Sulfadoxine-d3 1262770-70-6 C12H11D3N4O4S
TETRAETHYLAMMONIUM BENZOATE TETRAETHYLAMMONIUM BENZOATE 16909-22-1 C15H25NO2
Silybin Silybin 802918-57-6 C25H22O10
CALCIUM IONOPHORE II CALCIUM IONOPHORE II 74267-27-9 C28H48N2O3
Sulfathiazole-13C6 Sulfathiazole-13C6 1196157-72-8 C9H9N3O2S2
2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL ISOTHIOCYANATE 2,3,4-TRI-O-ACETYL-ALPHA-D-ARABINOPYRANOSYL ISOTHIOCYANATE 62414-75-9 C12H15NO7S
FENTANYL-D5 FENTANYL-D5 118357-29-2 C22H23D5N2O
CALCIUM IONOPHORE IV CALCIUM IONOPHORE IV 126572-74-5 C52H100N2O3
COPOLYMER F. 80% V-CL  5% V-AC U. 15% HY COPOLYMER F. 80% V-CL 5% V-AC U. 15% HY 39317-41-4 (C6H10O3.C4H6O2.C2H3Cl)x
<GAMMA>-CYCLODEXTRIN PHOSPHATE SODIUM S& -CYCLODEXTRIN PHOSPHATE SODIUM S& 199684-62-3 C48H80O64P8.8Na
S,S'-METHYLENEBIS(N,N-DIISOBUTYLDITHIOCARBAMATE) S,S'-METHYLENEBIS(N,N-DIISOBUTYLDITHIOCARBAMATE) 90276-58-7 C19H38N2S4
CADMIUM IONOPHORE I CADMIUM IONOPHORE I 73487-00-0 C22H44N2O2S2
DIAZEM PEPTICA C18-A DIAZEM PEPTICA C18-A C18H38O3Si
METHYLTRIDODECYLAMMONIUM NITRATE METHYLTRIDODECYLAMMONIUM NITRATE 13533-59-0 C37H78N2O3
ETH 157 ETH 157 61595-77-5 C36H32N2O4
ZORBAX LP 100/40 C4 ZORBAX LP 100/40 C4 68584-38-3 C6H12ClNO2Si2
ERYTHROMYCIN A  DIHYDRATE ERYTHROMYCIN A DIHYDRATE 59319-72-1 C37H67NO13.H2O
IODIDE IONOPHORE I IODIDE IONOPHORE I 14039-00-0 C25H22NS.ClO4
2-methyl-5-nitroimidazol-1-ylacetic acid 2-methyl-5-nitroimidazol-1-ylacetic acid 1010-93-1 C6H7N3O4
AMBERLITE IRA-96 AMBERLITE IRA-96 39409-19-3
MAGNESIUM IONOPHORE VI MAGNESIUM IONOPHORE VI 151058-38-7 C63H96N6O6
(R)-6-METHOXY-2,5,7,8-TETRAMETHYLCHROMANE-2-CARBOXYLIC ACID (R)-6-METHOXY-2,5,7,8-TETRAMETHYLCHROMANE-2-CARBOXYLIC ACID 139658-04-1 C15H20O4
PYRIDINIUM FORMATE PYRIDINIUM FORMATE 15066-28-1 C6H7NO2
ETH 295 ETH 295 69844-41-3 C27H54N2O4
AMBERLITE IRA-910 AMBERLITE IRA-910 37264-66-7
POTASSIUM TETRAKIS(4-BIPHENYLYL)BORATE POTASSIUM TETRAKIS(4-BIPHENYLYL)BORATE 400762-49-4 B1C48H36K1
HYDROGEN IONOPHORE IV HYDROGEN IONOPHORE IV 103225-02-1 C24H41NO2
2 2-DIHYDROXY-5-METHOXY-1 3-INDANDIONE 2 2-DIHYDROXY-5-METHOXY-1 3-INDANDIONE 304671-58-7 C10H8O5
Diisooctylthiophosphinic acid Diisooctylthiophosphinic acid 132767-86-3 C16H35OPS
2,3:11,12-DIDECALINO-16-CROWN-5 2,3:11,12-DIDECALINO-16-CROWN-5 172883-29-3 C27H46O5
3,5-dihydroxy-3-methyl-Pentanoic acid 3,5-dihydroxy-3-methyl-Pentanoic acid 150-97-0 C6H12O4
acetaminophen glucuronide acetaminophen glucuronide 16110-10-4 C14H17NO8
(22R)-5α,17α-Dihydroxy-6α,7α:22,26-diepoxyergosta-2,24-diene-1,26-dione (22R)-5α,17α-Dihydroxy-6α,7α:22,26-diepoxyergosta-2,24-diene-1,26-dione 27570-38-3 C28H38O6
ETH 1644 ETH 1644 80547-18-8 C24H46N2O2
DOWEX 2X8-100 ION-EXCHANGE RESIN DOWEX 2X8-100 ION-EXCHANGE RESIN 9049-11-0
TETRAHEPTYLAMMONIUM TETRAPHENYLBORATE TETRAHEPTYLAMMONIUM TETRAPHENYLBORATE 22560-28-7 C52H80BN
EDT-20 EDT-20 61790-85-0
4-(6-METHYL-2-BENZOTHIAZOLYL)PHENYL ISOCYANATE 4-(6-METHYL-2-BENZOTHIAZOLYL)PHENYL ISOCYANATE 67229-93-0 C15H10N2OS
AMBERLITE STRONGLY ACIDIC CATION EXCHANGER AMBERLITE STRONGLY ACIDIC CATION EXCHANGER 39464-90-9
2,6-Dimethyl-4-quinolinecarboxylic acid N-hydroxysuccinimide ester 2,6-Dimethyl-4-quinolinecarboxylic acid N-hydroxysuccinimide ester 569355-30-2 C16H14N2O4
5-DesaMino 5-Oxo-2,5-dihydro LaMotrigine 5-DesaMino 5-Oxo-2,5-dihydro LaMotrigine 252186-78-0 C9H6Cl2N4O
SulfanilaMide-13C6 SulfanilaMide-13C6 1196157-89-7 C6H8N2O2S
3-Amino-5-(4-morpholinylmethyl-d<sub>2</sub>)-2-Oxazolidinone-4,4,5-d<sub>3</sub> 3-Amino-5-(4-morpholinylmethyl-d2)-2-Oxazolidinone-4,4,5-d3 1017793-94-0 C8H10D5N3O3
4,5-DIMETHYL-3,6-DIOCTYLOXY-1,2-PHENYLENE-BIS(MERCURY TRIFLUOROACETATE) 4,5-DIMETHYL-3,6-DIOCTYLOXY-1,2-PHENYLENE-BIS(MERCURY TRIFLUOROACETATE) 145889-57-2 C28H40F6Hg2O6
2-FLUORO-2'-NITRODIPHENYL ETHER 2-FLUORO-2'-NITRODIPHENYL ETHER 93974-08-4 C12H8FNO3
LARIXYL ACETATE LARIXYL ACETATE 4608-49-5 C22H36O3
LITHIUM IONOPHORE VIII LITHIUM IONOPHORE VIII 133338-85-9 C48H83N3O6
1,1'-BIS(4-SULFOBUTYL)-11-(4-ISOTHIOCYANATOPHENYLTHIO)-3,3,3',3'-TETRAMETHYL-10,12-TRI METHYLENEINDOTRICARBOCYANINE MONOSODIUM SALT 1,1'-BIS(4-SULFOBUTYL)-11-(4-ISOTHIOCYANATOPHENYLTHIO)-3,3,3',3'-TETRAMETHYL-10,12-TRI METHYLENEINDOTRICARBOCYANINE MONOSODIUM SALT 152111-91-6 C45H50N3NaO6S4
BENEDICT'S REAGENT FOR THE QUALITATIVE BENEDICT'S REAGENT FOR THE QUALITATIVE 63126-89-6 C7H10CuNa2O15S
R(+)-1-(PENTAFLUOROPHENYL)ETHANOL R(+)-1-(PENTAFLUOROPHENYL)ETHANOL 104371-21-3 C8H5F5O
DIISOPROPYL O,O'-BIS(TRIMETHYLSILYL)-L-TARTRATE DIISOPROPYL O,O'-BIS(TRIMETHYLSILYL)-L-TARTRATE 130678-42-1 C16H34O6Si2
SULFOMOLYBDIC ACID SULFOMOLYBDIC ACID H2MoO7S
Clenbuterol-D9 HCl Clenbuterol-D9 HCl 184006-60-8 C12H10Cl3D9N2O
Bupropion Hydrochloride Related Compound B (15 mg) (2-(tert-butylamino)-3'-bromopropiophenone hydrochloride) Bupropion Hydrochloride Related Compound B (15 mg) (2-(tert-butylamino)-3'-bromopropiophenone hydrochloride) 1049718-43-5 C13H19BrClNO
SulfaMerazine-13C6 SulfaMerazine-13C6 1196157-80-8 C11H12N4O2S
SeMicarbazide-13C,15N2 Hydrochloride SeMicarbazide-13C,15N2 Hydrochloride 1173020-16-0 CH6ClN3O
KJELDAHL TABLETS KJELDAHL TABLETS CuNa2O12S3
POLYMETHACRYLIC ACID, CROSSLINKED, HYDROGEN FORM POLYMETHACRYLIC ACID, CROSSLINKED, HYDROGEN FORM 50602-21-6 (C10H10.C4H6O2)x
AMBERLITE STRONGLY ACIDIC CATION EXCHANGER AMBERLITE STRONGLY ACIDIC CATION EXCHANGER 12626-25-4
[12-(4-ETHYLPHENYL)DODECYL] 2-NITROPHENYL ETHER [12-(4-ETHYLPHENYL)DODECYL] 2-NITROPHENYL ETHER 155056-63-6 C26H37NO3
Sulfapyridine-13C6 Sulfapyridine-13C6 1228182-45-3 C11H11N3O2S
1,3-Bis(2-methoxyphenoxy)-2-propanol 1,3-Bis(2-methoxyphenoxy)-2-propanol 16929-60-5 C17H20O5
AMBERLITE(R) IRA 958 AMBERLITE(R) IRA 958 79620-27-2
NONYLPHENYL-POLYETHYLENEGLYCOL ACETATE NONYLPHENYL-POLYETHYLENEGLYCOL ACETATE 54612-40-7 H19C9C6H4(OCH2CH2)nOCOCH3
ETH 2112 ETH 2112 106327-92-8 C61H100O9
CHROMOIONOPHORE X CHROMOIONOPHORE X 192190-92-4 C32H44F3NO
ETH 5435 ETH 5435 141754-61-2 C54H108N2O2S2
S,S,S-tris(2-ethylhexyl)phosphorotrithioate S,S,S-tris(2-ethylhexyl)phosphorotrithioate 181629-03-8 C24H51OPS3
SILYBIN (A and B)(P) SILYBIN (A and B)(P) 142797-34-0 C25H22O10
TETRA-N-DODECYLAMMONIUM NITRATE TETRA-N-DODECYLAMMONIUM NITRATE 63893-35-6 C48H100N2O3
Sulfadimethoxine-d6 Sulfadimethoxine-d6 73068-02-7 C12H14N4O4S
N-Methyl-N-(triMethylsilyl)trifluoroacetaMide N-Methyl-N-(triMethylsilyl)trifluoroacetaMide 945623-67-6 C6H3D9F3NOSi
TETRAHEXADECYLAMMONIUM BROMIDE TETRAHEXADECYLAMMONIUM BROMIDE 139653-55-7 C64H132BrN
ETH 1810 ETH 1810 99281-50-2 C28H50N2O2
GLUTATHIONE REDUCED, IMMOBILIZED ON AGAROSE CL-4B GLUTATHIONE REDUCED, IMMOBILIZED ON AGAROSE CL-4B C10H17N3O6S
TETRAOCTYLAMMONIUM NITRATE TETRAOCTYLAMMONIUM NITRATE 33734-52-0 C32H68N2O3
10-HYDROXYDECYL BUTYRATE 10-HYDROXYDECYL BUTYRATE 80054-63-3 C14H28O3
4-(7-DIETHYLAMINOCOUMARIN-3-YL)BENZOYL CYANIDE 4-(7-DIETHYLAMINOCOUMARIN-3-YL)BENZOYL CYANIDE 203256-20-6 C21H18N2O3
9-CARBAZOLEPROPIONIC ACID 9-CARBAZOLEPROPIONIC ACID 6622-54-4 C15H13NO2
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