Chemical Reagents

Chemicals reagents are commonly referred to as reagent. It is a large class of pure chemical substances with various standard purities and can be used for education, scientific research, analysis and testing as well as the functional materials and raw materials required by some kinds of novel industrial materials. There is a large variety of chemical reagents and the number has reached hundreds of thousands in the world. There are also tens of thousands of reagents that have been used in daily life in china.
There is still no uniform international rules in the classification methods for chemicals. It is customary divided by subject and actual application. Take the representative catalog issued by the Germany E • Merck Company as example, there are twelve categories and seventy categories while in most countries, it is divided with the scope of application. We divide the reagents into four categories.

1. General reagents: generally refers to inorganic reagents and organic reagents that can meet standard purity. It is often applied to scientific research, analysis and testing, and synthetic reaction and used as new materials.

2. Analysis Reagents: regent dedicated to analysis and test and can be divided into two subcategories:
(1) Reagents for chemical analysis: testing items for the chemical reaction analysis.
      1) Baseline Reagent: pure compound directly used for the standard solution in the formulation and volumetric analysis.
      2) Indicator: it can be used to indicate the end of the titration reagent and can be classified into pH indicator, redox indicator adsorption indicator, metal indicator, a fluorescent indicator, and so on.
(2) Regents for instrument analysis: high-purity compounds dedicated to instrumental analysis.
       1) Spectroscopically pure reagents: spectroscopically pure compound, often expressed in the SP for spectral analysis reagents.
        2) Chromatography pure reagents: reagents dedicated to analysis of gas chromatography and liquid chromatography analysis.
       3) Deuterated reagents: reagent decided to the analysis of the nuclear resonance instrument.

3. Reagents of electronics industry: special chemical products dedicated to electronics industry.
1)  MOS Reagents: the particle concentration is consistent with ASTM "O" level, being microelectronics dedicated reagent.
2)  high-purity reagents: also known as ultra high purity reagents such as purity of 99.99%, called 4N, 99.999% referred to 5N. They are generally used for scientific research and physical and chemical trace analysis, fiber-optic communications, microelectronics, semiconductors, lasers and so on.
3)  In addition, there are also optically pure reagents, photoresist and other kinds of fine chemical products of special properties.

4. Biochemical reagents: they are basic chemical substances extracted from living organisms or chemically synthesized and is a large type of reagent as important reagents for biological component research and analysis and identification including clinical immunology reagents, genetic engineering reagent, cell culture reagents, hormone-type substances, reagent for poison carcinogenic research and reagent for anti-mold and insecticide research. In short, they are reagents for scientific research such as exploring the mysteries of life and disease prevention as well as testing agents, being pure compound related to medicine and pharmacology.

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Structure Chemical Name CAS MF
2-Fluoro-5-iodobenzoic acid 2-Fluoro-5-iodobenzoic acid 124700-41-0 C7H4FIO2
Ethyl 2-hydroxyisobutyrate Ethyl 2-hydroxyisobutyrate 80-55-7 C6H12O3
N-ETHYLISOPROPYLAMINE N-ETHYLISOPROPYLAMINE 19961-27-4 C5H13N
Sodium bis(trimethylsilyl)amide Sodium bis(trimethylsilyl)amide 1070-89-9 C6H18NNaSi2
Phenyltris(dimethylsiloxy)silane Phenyltris(dimethylsiloxy)silane 18027-45-7 C12H26O3Si4
Cyclopropanecarboxylic acid Cyclopropanecarboxylic acid 1759-53-1 C4H6O2
1,2,3-TRIPHENYLGUANIDINE 1,2,3-TRIPHENYLGUANIDINE 101-01-9 C19H17N3
4-(Trifluoromethyl)phenylacetic acid 4-(Trifluoromethyl)phenylacetic acid 32857-62-8 C9H7F3O2
Ethyl trifluoropyruvate Ethyl trifluoropyruvate 13081-18-0 C5H5F3O3
Chlorosulfonyl isocyanate Chlorosulfonyl isocyanate 1189-71-5 CClNO3S
2,4-Dichlorophenylboronic acid 2,4-Dichlorophenylboronic acid 68716-47-2 C6H5BCl2O2
1,3-Cyclohexanedione 1,3-Cyclohexanedione 504-02-9 C6H8O2
1,1,3,3-Tetramethoxypropane 1,1,3,3-Tetramethoxypropane 102-52-3 C7H16O4
4-Iodophenol 4-Iodophenol 540-38-5 C6H5IO
2-Aminophenol 2-Aminophenol 95-55-6 C6H7NO
Ethyl 3-bromopropionate Ethyl 3-bromopropionate 539-74-2 C5H9BrO2
4-Chloro-3-methylaniline 4-Chloro-3-methylaniline 7149-75-9 C7H8ClN
3,5-Dimethoxybenzaldehyde 3,5-Dimethoxybenzaldehyde 7311-34-4 C9H10O3
Sodium  2,4-dimethylbenzenesulfonate Sodium 2,4-dimethylbenzenesulfonate 827-21-4 C8H11NaO3S
Ethyl 3,3-Diethoxypropionate Ethyl 3,3-Diethoxypropionate 10601-80-6 C9H18O4
1-ALLYL-3-(2-HYDROXYETHYL)-2-THIOUREA 1-ALLYL-3-(2-HYDROXYETHYL)-2-THIOUREA 105-81-7 C6H12N2OS
Methyl 3,5-dihydroxybenzoate Methyl 3,5-dihydroxybenzoate 2150-44-9 C8H8O4
4-Iodobenzonitrile 4-Iodobenzonitrile 3058-39-7 C7H4IN
1-BENZHYDRYLAZETIDIN-3-ONE 1-BENZHYDRYLAZETIDIN-3-ONE 40320-60-3 C16H15NO
4-PHENOXYBENZOIC ACID 4-PHENOXYBENZOIC ACID 2215-77-2 C13H10O3
3-Butyn-2-ol 3-Butyn-2-ol 2028-63-9 C4H6O
2,2-Difluoroethanol 2,2-Difluoroethanol 359-13-7 C2H4F2O
3-Nitrophthalimide 3-Nitrophthalimide 603-62-3 C8H4N2O4
Semicarbazide hydrochloride Semicarbazide hydrochloride 563-41-7 CH6ClN3O
2',5'-Dihydroxyacetophenone 2',5'-Dihydroxyacetophenone 490-78-8 C8H8O3
3-Chloropropyltriethoxysilane 3-Chloropropyltriethoxysilane 5089-70-3 C9H21ClO3Si
3-(Trifluoromethyl)benzoyl chloride 3-(Trifluoromethyl)benzoyl chloride 2251-65-2 C8H4ClF3O
2,4-Dimethoxybenzeneboronic acid 2,4-Dimethoxybenzeneboronic acid 133730-34-4 C8H11BO4
p-Tolunitrile p-Tolunitrile 104-85-8 C8H7N
2-(Trifluoromethyl)benzaldehyde 2-(Trifluoromethyl)benzaldehyde 447-61-0 C8H5F3O
4,4'-Dihydroxybenzophenone 4,4'-Dihydroxybenzophenone 611-99-4 C13H10O3
1-Boc-Azetidine-3-yl-methanol 1-Boc-Azetidine-3-yl-methanol 142253-56-3 C9H17NO3
2-Aminoresorcinol hydrochloride 2-Aminoresorcinol hydrochloride 634-60-6 C6H8ClNO2
4-Bromo-3-nitrotoluene 4-Bromo-3-nitrotoluene 5326-34-1 C7H6BrNO2
Triethyl 1,1,2-ethanetricarboxylate Triethyl 1,1,2-ethanetricarboxylate 7459-46-3 C11H18O6
2-Chloro-5-(trifluoromethyl)phenylboronic acid 2-Chloro-5-(trifluoromethyl)phenylboronic acid 182344-18-9 C7H5BClF3O2
Tetramethylammonium bromide Tetramethylammonium bromide 64-20-0 C4H12BrN
2,3-Dichlorobenzaldehyde 2,3-Dichlorobenzaldehyde 6334-18-5 C7H4Cl2O
p-Toluenesulfonyl Isocyanate p-Toluenesulfonyl Isocyanate 4083-64-1 C8H7NO3S
2,5-Di-tert-butylhydroquinone 2,5-Di-tert-butylhydroquinone 88-58-4 C14H22O2
4-Acetylphenylboronic acid 4-Acetylphenylboronic acid 149104-90-5 C8H9BO3
4-Fluoro-3-methylphenol 4-Fluoro-3-methylphenol 452-70-0 C7H7FO
1-Hydroxycyclohexyl phenyl ketone 1-Hydroxycyclohexyl phenyl ketone 947-19-3 C13H16O2
1-Bromo-3-methoxypropane 1-Bromo-3-methoxypropane 36865-41-5 C4H9BrO
4-Cyanophenylboronic acid 4-Cyanophenylboronic acid 126747-14-6 C7H6BNO2
2-Chloro-5-iodobenzoic acid 2-Chloro-5-iodobenzoic acid 19094-56-5 C7H4ClIO2
5-Bromo-2-methylbenzonitrile 5-Bromo-2-methylbenzonitrile 156001-51-3 C8H6BrN
N,N'-Dicyclohexyl-4-morpholinecarboxamidine N,N'-Dicyclohexyl-4-morpholinecarboxamidine 4975-73-9 C17H31N3O
Methyl isobutyrylacetate Methyl isobutyrylacetate 42558-54-3 C7H12O3
4-Fluorobenzoyl chloride 4-Fluorobenzoyl chloride 403-43-0 C7H4ClFO
3-Chlorophenol 3-Chlorophenol 108-43-0 C6H5ClO
3,5-Dihydroxybenzoic acid 3,5-Dihydroxybenzoic acid 99-10-5 C7H6O4
Methyltrimethoxysilane Methyltrimethoxysilane 1185-55-3 C4H12O3Si
2-CHLORO-2-HYDROXYIMINOACETIC ACID ETHYL ESTER 2-CHLORO-2-HYDROXYIMINOACETIC ACID ETHYL ESTER 14337-43-0 C4H6ClNO3
1,3,5-Benzenetricarboxylic acid chloride 1,3,5-Benzenetricarboxylic acid chloride 4422-95-1 C9H3Cl3O3
tert-Butyl chloroacetate tert-Butyl chloroacetate 107-59-5 C6H11ClO2
Cyclopentanecarboxylic acid Cyclopentanecarboxylic acid 3400-45-1 C6H10O2
4-Cyanobenzoic acid 4-Cyanobenzoic acid 619-65-8 C8H5NO2
N,N-Diphenyl-p-phenylenediamine N,N-Diphenyl-p-phenylenediamine 74-31-7 C18H16N2
2,3,5-TRICHLOROPHENOL 2,3,5-TRICHLOROPHENOL 933-78-8 C6H3Cl3O
3,5-Dimethyl-4-hydroxybenzaldehyde 3,5-Dimethyl-4-hydroxybenzaldehyde 2233-18-3 C9H10O2
3-Fluoro-4-methylbenzoic acid 3-Fluoro-4-methylbenzoic acid 350-28-7 C8H7FO2
1,1,3,3-Tetramethyldisilazane 1,1,3,3-Tetramethyldisilazane 15933-59-2 C4H15NSi2
Glutaric anhydride Glutaric anhydride 108-55-4 C5H6O3
Ammonium (-)-3-bromo-8-camphorsulfonate Ammonium (-)-3-bromo-8-camphorsulfonate 55870-50-3 C10H18BrNO4S
Protocatechualdehyde Protocatechualdehyde 139-85-5 C7H6O3
Phenylacetyl chloride Phenylacetyl chloride 103-80-0 C8H7ClO
4-Methoxyphenol 4-Methoxyphenol 150-76-5 C7H8O2
tert-Butyl bromoacetate tert-Butyl bromoacetate 5292-43-3 C6H11BrO2
Triisopropyl borate Triisopropyl borate 5419-55-6 C9H21BO3
Carbon tetrabromide Carbon tetrabromide 558-13-4 CBr4
1,2-Cyclohexanedione 1,2-Cyclohexanedione 765-87-7 C6H8O2
2,5-Dichloronitrobenzene 2,5-Dichloronitrobenzene 89-61-2 C6H3Cl2NO2
2-Bromophenol 2-Bromophenol 95-56-7 C6H5BrO
p-Toluic acid p-Toluic acid 99-94-5 C8H8O2
3,4-Dichlorobenzaldehyde 3,4-Dichlorobenzaldehyde 6287-38-3 C7H4Cl2O
4,5-Difluorophthalic acid 4,5-Difluorophthalic acid 18959-31-4 C8H4F2O4
2-Acetylbutyrolactone 2-Acetylbutyrolactone 517-23-7 C6H8O3
Fiber Glass Wool Fiber Glass Wool 65997-17-3 CaNaO4P
(R)-(-)-1,1'-Binaphthyl-2,2'-diyl hydrogenphosphate (R)-(-)-1,1'-Binaphthyl-2,2'-diyl hydrogenphosphate 39648-67-4 C20H13O4P
5-Hydroxy-1-tetralone 5-Hydroxy-1-tetralone 28315-93-7 C10H10O2
Benzoyl isothiocyanate Benzoyl isothiocyanate 532-55-8 C8H5NOS
Ethyl propiolate Ethyl propiolate 623-47-2 C5H6O2
4,4'-Methylenebis(2-methylcyclohexylamine) 4,4'-Methylenebis(2-methylcyclohexylamine) 6864-37-5 C15H30N2
5-Bromo-2-hydroxyacetophenone 5-Bromo-2-hydroxyacetophenone 1450-75-5 C8H7BrO2
3-Iodobenzonitrile 3-Iodobenzonitrile 69113-59-3 C7H4IN
4-Nitrobenzaldehyde 4-Nitrobenzaldehyde 555-16-8 C7H5NO3
3-CHLORO-5-METHOXY-BENZOIC ACID 3-CHLORO-5-METHOXY-BENZOIC ACID 82477-67-6 C8H7ClO3
4-Biphenylboronic acid 4-Biphenylboronic acid 5122-94-1 C12H11BO2
2-Amino-5-diethylaminopentane 2-Amino-5-diethylaminopentane 140-80-7 C9H22N2
7-Methoxy-2-tetralone 7-Methoxy-2-tetralone 4133-34-0 C11H12O2
Ethylene dimethacrylate Ethylene dimethacrylate 97-90-5 C10H14O4
3,4-METHYLENEDIOXYBENZHYDRAZIDE 3,4-METHYLENEDIOXYBENZHYDRAZIDE 22026-39-7 C8H8N2O3
Bromoacetyl bromide Bromoacetyl bromide 598-21-0 C2H2Br2O
N,N-Dimethylformamide dimethyl acetal N,N-Dimethylformamide dimethyl acetal 4637-24-5 C5H13NO2
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