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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
Benzophenone hydrazone Benzophenone hydrazone 5350-57-2 C13H12N2
Tetramethylguanidine Tetramethylguanidine 80-70-6 C5H13N3
Pyridinium p-Toluenesulfonate Pyridinium p-Toluenesulfonate 24057-28-1 C12H13NO3S
Anthrone Anthrone 90-44-8 C14H10O
Piperazine-N,N'-bis-(2-ethanesulphonic acid) dipotassium salt Piperazine-N,N'-bis-(2-ethanesulphonic acid) dipotassium salt 108321-27-3 C8H19KN2O6S2
4-Chloro-2-nitrobenzaldehyde 4-Chloro-2-nitrobenzaldehyde 5551-11-1 C7H4ClNO3
trans-1,2-Cyclohexanedicarboxylic acid trans-1,2-Cyclohexanedicarboxylic acid 2305-32-0 C8H12O4
2-Hydroxyisobutyric acid 2-Hydroxyisobutyric acid 594-61-6 C4H8O3
1,1'-Bi-2-naphthol 1,1'-Bi-2-naphthol 602-09-5 C20H14O2
4-tert-Butylbenzaldehyde 4-tert-Butylbenzaldehyde 939-97-9 C11H14O
1-Indanone 1-Indanone 83-33-0 C9H8O
Rubrene Rubrene 517-51-1 C42H28
BENZENESULFOHYDROXAMIC ACID BENZENESULFOHYDROXAMIC ACID 599-71-3 C6H7NO3S
Benzylchlorodimethylsilane Benzylchlorodimethylsilane 1833-31-4 C9H13ClSi
4,5-DIFLUORO-2-IODOBENZOIC ACID 4,5-DIFLUORO-2-IODOBENZOIC ACID 130137-05-2 C7H3F2IO2
Dibenzofuran Dibenzofuran 132-64-9 C12H8O
N-Iodosuccinimide N-Iodosuccinimide 516-12-1 C4H4INO2
2-Amino-2-methyl-1-propanol 2-Amino-2-methyl-1-propanol 124-68-5 C4H11NO
6-NITRO-1,3-BENZOXAZOLE 6-NITRO-1,3-BENZOXAZOLE 30693-53-9 C6H5N2O5S.Na
3,5-Dibenzyloxyacetophenone 3,5-Dibenzyloxyacetophenone 28924-21-2 C22H20O3
4-Biphenylacetic acid 4-Biphenylacetic acid 5728-52-9 C14H12O2
Tetrabutylammonium iodide Tetrabutylammonium iodide 311-28-4 C16H36IN
4-Bromo-2-methylbenzoic acid 4-Bromo-2-methylbenzoic acid 68837-59-2 C8H7BrO2
Triphenylsilyl chloride Triphenylsilyl chloride 76-86-8 C18H15ClSi
6-Fluoro-1-indanone 6-Fluoro-1-indanone 1481-32-9 C9H7FO
Triethyloxonium tetrafluoroborate Triethyloxonium tetrafluoroborate 368-39-8 C6H15BF4O
Chloromethyl isopropyl carbonate Chloromethyl isopropyl carbonate 35180-01-9 C5H9ClO3
5-Fluoro-2-methoxyphenylboronic acid 5-Fluoro-2-methoxyphenylboronic acid 179897-94-0 C7H8BFO3
3-Bromobenzenesulfonyl chloride 3-Bromobenzenesulfonyl chloride 2905-24-0 C6H4BrClO2S
Cyclopentanemethanol Cyclopentanemethanol 3637-61-4 C6H12O
Diallyl phthalate Diallyl phthalate 131-17-9 C14H14O4
3,5-Bis(trifluoromethyl)benzoic acid 3,5-Bis(trifluoromethyl)benzoic acid 725-89-3 C9H4F6O2
Methyl gallate Methyl gallate 99-24-1 C8H8O5
TERT-BUTYL ETHYL MALONATE TERT-BUTYL ETHYL MALONATE 32864-38-3 C9H16O4
Methyl 4-hydroxyphenylacetate Methyl 4-hydroxyphenylacetate 14199-15-6 C9H10O3
2-(TRIFLUOROMETHOXY)BENZALDEHYDE 2-(TRIFLUOROMETHOXY)BENZALDEHYDE 94651-33-9 C8H5F3O2
6-methoxy-1-tetralone 6-methoxy-1-tetralone 1078-19-9 C11H12O2
5-Cyanophthalide 5-Cyanophthalide 82104-74-3 C9H5NO2
5-Nitrovanillin 5-Nitrovanillin 6635-20-7 C8H7NO5
4-(TRIFLUOROMETHYL)PHENYLACETONITRILE 4-(TRIFLUOROMETHYL)PHENYLACETONITRILE 2338-75-2 C9H6F3N
Trifluoroacetamide Trifluoroacetamide 354-38-1 C2H2F3NO
4-(Hydroxymethyl)phenoxyacetic acid 4-(Hydroxymethyl)phenoxyacetic acid 68858-21-9 C9H10O4
5-Bromo-2-anisaldehyde 5-Bromo-2-anisaldehyde 25016-01-7 C8H7BrO2
2,6-Dimethoxybenzoic acid 2,6-Dimethoxybenzoic acid 1466-76-8 C9H10O4
9,9-Bis(4-hydroxyphenyl)fluorene 9,9-Bis(4-hydroxyphenyl)fluorene 3236-71-3 C25H18O2
4-Chlorophenylboronic acid 4-Chlorophenylboronic acid 1679-18-1 C6H6BClO2
2-Chloro-5-nitrobenzoic acid 2-Chloro-5-nitrobenzoic acid 2516-96-3 C7H4ClNO4
Diethyl aminomalonate hydrochloride Diethyl aminomalonate hydrochloride 13433-00-6 C7H14ClNO4
Methylurea Methylurea 598-50-5 C2H6N2O
Methyl 2-bromobenzoate Methyl 2-bromobenzoate 610-94-6 C8H7BrO2
Cyclohexanecarboxylic acid Cyclohexanecarboxylic acid 98-89-5 C7H12O2
Methyl 4-formylbenzoate Methyl 4-formylbenzoate 1571-08-0 C9H8O3
Acetylenedicarboxylic acid Acetylenedicarboxylic acid 142-45-0 C4H2O4
Methyl 5-fluoro-2-methylbenzoate Methyl 5-fluoro-2-methylbenzoate 175278-29-2 C9H9FO2
3,4'-Oxydianiline 3,4'-Oxydianiline 2657-87-6 C12H12N2O
Diethyl 1,3-acetonedicarboxylate Diethyl 1,3-acetonedicarboxylate 105-50-0 C9H14O5
2-Fluoro-4-methylphenylboronic acid 2-Fluoro-4-methylphenylboronic acid 170981-26-7 C7H8BFO2
4-Fluoro-2-methylphenol 4-Fluoro-2-methylphenol 452-72-2 C7H7FO
5-Bromo-1-indanone 5-Bromo-1-indanone 34598-49-7 C9H7BrO
3-Chlorobenzenesulfonyl chloride 3-Chlorobenzenesulfonyl chloride 2888-06-4 C6H4Cl2O2S
2-Bromo-4-butanolide 2-Bromo-4-butanolide 5061-21-2 C4H5BrO2
3-Azetidinecarboxylic acid 3-Azetidinecarboxylic acid 36476-78-5 C4H7NO2
3-Chloro-4-hydroxyphenylboronic acid 3-Chloro-4-hydroxyphenylboronic acid 182344-13-4 C6H6BClO3
Ethyl thiooxamate Ethyl thiooxamate 16982-21-1 C4H7NO2S
2,2-Diphenylacetic acid 2,2-Diphenylacetic acid 117-34-0 C14H12O2
4'-Fluoro-3'-nitroacetophenone 4'-Fluoro-3'-nitroacetophenone 400-93-1 C8H6FNO3
Diethyl benzylmalonate Diethyl benzylmalonate 607-81-8 C14H18O4
Methyl thioglycolate Methyl thioglycolate 2365-48-2 C3H6O2S
Methylglyoxal 1,1-dimethyl acetal Methylglyoxal 1,1-dimethyl acetal 6342-56-9 C5H10O3
Veratric Acid Veratric Acid 93-07-2 C9H10O4
Propylparaben Propylparaben 94-13-3 C10H12O3
4-FLUORO-2-(TRIFLUOROMETHYL)BENZOIC ACID 4-FLUORO-2-(TRIFLUOROMETHYL)BENZOIC ACID 141179-72-8 C8H4F4O2
2,6-Dimethylbenzoic acid 2,6-Dimethylbenzoic acid 632-46-2 C9H10O2
Diethyl ketomalonate Diethyl ketomalonate 609-09-6 C7H10O5
4'-(Trifluoromethyl)acetophenone 4'-(Trifluoromethyl)acetophenone 709-63-7 C9H7F3O
3-Methoxybenzaldehyde 3-Methoxybenzaldehyde 591-31-1 C8H8O2
Isobutaneboronic acid Isobutaneboronic acid 84110-40-7 C4H11BO2
3-Cyclohexylaminopropanesulfonic Acid 3-Cyclohexylaminopropanesulfonic Acid 1135-40-6 C9H19NO3S
4-(Trifluoromethoxy)phenyl isocyanate 4-(Trifluoromethoxy)phenyl isocyanate 35037-73-1 C8H4F3NO2
Benzophenone imine Benzophenone imine 1013-88-3 C13H11N
2-Methoxypropene 2-Methoxypropene 116-11-0 C4H8O
Methanedisulphonic acid Methanedisulphonic acid 503-40-2 CH4O6S2
trans-Methyl crotonate trans-Methyl crotonate 623-43-8 C5H8O2
2-Iodobenzonitrile 2-Iodobenzonitrile 4387-36-4 C7H4IN
Bromotrimethylsilane Bromotrimethylsilane 2857-97-8 C3H9BrSi
2-Bromobenzyl alcohol 2-Bromobenzyl alcohol 18982-54-2 C7H7BrO
4-CHLOROPHENYL CHLOROFORMATE 4-CHLOROPHENYL CHLOROFORMATE 7693-45-0 C7H4Cl2O2
7H-Pyrrolo[2,3-d]pyrimidine 7H-Pyrrolo[2,3-d]pyrimidine 271-70-5 C6H5N3
alpha,alpha,alpha-Trifluoro-o-toluoyl chloride alpha,alpha,alpha-Trifluoro-o-toluoyl chloride 329-15-7 C8H4ClF3O
2-Bromopropiophenone 2-Bromopropiophenone 2114-00-3 C9H9BrO
3-Bromo-4-chlorobenzoic acid 3-Bromo-4-chlorobenzoic acid 42860-10-6 C7H4BrClO2
Ethoxymethylenemalononitrile Ethoxymethylenemalononitrile 123-06-8 C6H6N2O
2,3-Dimethylbenzoic acid 2,3-Dimethylbenzoic acid 603-79-2 C9H10O2
3-BOC-3-METHYLAMINOAZATIDINE 3-BOC-3-METHYLAMINOAZATIDINE 577777-20-9 C9H18N2O2
2-Bromobenzyl cyanide 2-Bromobenzyl cyanide 19472-74-3 C8H6BrN
Chrysene Chrysene 218-01-9 C18H12
5-Chloro-2-mercaptobenzimidazole 5-Chloro-2-mercaptobenzimidazole 25369-78-2 C7H5ClN2S
Phenylacetylene Phenylacetylene 536-74-3 C8H6
3-Bromophenol 3-Bromophenol 591-20-8 C6H5BrO
4-Acetylbiphenyl 4-Acetylbiphenyl 92-91-1 C14H12O
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