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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
4-(TRIFLUOROMETHOXY)PHENYLACETONITRILE 4-(TRIFLUOROMETHOXY)PHENYLACETONITRILE 49561-96-8 C9H6F3NO
(1R)-(-)-10-Camphorsulfonic acid (1R)-(-)-10-Camphorsulfonic acid 35963-20-3 C10H16O4S
HOMOGENTISIC ACID GAMMA-LACTONE HOMOGENTISIC ACID GAMMA-LACTONE 2688-48-4 C8H6O3
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
Ethyl (R)-(+)-4-chloro-3-hydroxybutyrate Ethyl (R)-(+)-4-chloro-3-hydroxybutyrate 90866-33-4 C6H11ClO3
Pyridinium p-Toluenesulfonate Pyridinium p-Toluenesulfonate 24057-28-1 C12H13NO3S
Anthrone Anthrone 90-44-8 C14H10O
Tetramethylguanidine Tetramethylguanidine 80-70-6 C5H13N3
Benzylchlorodimethylsilane Benzylchlorodimethylsilane 1833-31-4 C9H13ClSi
4,5-DIFLUORO-2-IODOBENZOIC ACID 4,5-DIFLUORO-2-IODOBENZOIC ACID 130137-05-2 C7H3F2IO2
Benzophenone hydrazone Benzophenone hydrazone 5350-57-2 C13H12N2
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
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
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
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
Hydramethylnon Hydramethylnon 67485-29-4 C25H24F6N4
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-Amino-2-methyl-1-propanol 2-Amino-2-methyl-1-propanol 124-68-5 C4H11NO
2-Chloro-5-nitrobenzoic acid 2-Chloro-5-nitrobenzoic acid 2516-96-3 C7H4ClNO4
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
Dibenzofuran Dibenzofuran 132-64-9 C12H8O
N-Iodosuccinimide N-Iodosuccinimide 516-12-1 C4H4INO2
TRIMETHYLENE DI(THIOTOSYLATE) TRIMETHYLENE DI(THIOTOSYLATE) 3866-79-3 C17H20O4S4
4-(4-Nitrophenyl)azoresorcinol 4-(4-Nitrophenyl)azoresorcinol 74-39-5 C12H9N3O4
Ethyl Succinyl Chloride Ethyl Succinyl Chloride 14794-31-1 C6H9ClO3
3,4'-Oxydianiline 3,4'-Oxydianiline 2657-87-6 C12H12N2O
Diethyl 1,3-acetonedicarboxylate Diethyl 1,3-acetonedicarboxylate 105-50-0 C9H14O5
2-Bromo-3-nitrotoluene 2-Bromo-3-nitrotoluene 41085-43-2 C7H6BrNO2
Salicylaldoxime Salicylaldoxime 94-67-7 C7H7NO2
Chloromethyltrimethoxysilane Chloromethyltrimethoxysilane 5926-26-1 C4H11ClO3Si
Tetrabutylammonium phosphate Tetrabutylammonium phosphate 5574-97-0 C16H38NO4P
4-PYRIDYLTHIOUREA 4-PYRIDYLTHIOUREA 164670-44-4 C6H7N3S
2-Fluoro-4-methylphenylboronic acid 2-Fluoro-4-methylphenylboronic acid 170981-26-7 C7H8BFO2
4-ISOPROPYL-3-THIOSEMICARBAZIDE 4-ISOPROPYL-3-THIOSEMICARBAZIDE 13431-36-2 C4H11N3S
5-Indoleboronic acid pinacol ester 5-Indoleboronic acid pinacol ester 269410-24-4 C14H18BNO2
2-Bromomethylphenylboronic acid 2-Bromomethylphenylboronic acid 91983-14-1 C7H8BBrO2
Diisopropyl malonate Diisopropyl malonate 13195-64-7 C9H16O4
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
Dehydroacetic acid Dehydroacetic acid 520-45-6 C8H8O4
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-Quinolinylboronic acid 2-Quinolinylboronic acid 745784-12-7 C9H8BNO2
4-CHLORO-2-METHYLPHENYLBORONIC ACID 4-CHLORO-2-METHYLPHENYLBORONIC ACID 209919-30-2 C7H8BClO2
2,2-Diphenylacetic acid 2,2-Diphenylacetic acid 117-34-0 C14H12O2
Dichloroacetyl chloride Dichloroacetyl chloride 79-36-7 C2HCl3O
4'-Fluoro-3'-nitroacetophenone 4'-Fluoro-3'-nitroacetophenone 400-93-1 C8H6FNO3
4-Nitroanisole 4-Nitroanisole 100-17-4 C7H7NO3
3,4,7,8-Tetramethyl-1,10-phenanthroline 3,4,7,8-Tetramethyl-1,10-phenanthroline 1660-93-1 C16H16N2
Tetrabutylammonium iodide Tetrabutylammonium iodide 311-28-4 C16H36IN
4-Bromo-2-methylbenzoic acid 4-Bromo-2-methylbenzoic acid 68837-59-2 C8H7BrO2
2,4-Dichlorophenylacetonitrile 2,4-Dichlorophenylacetonitrile 6306-60-1 C8H5Cl2N
Triphenylsilyl chloride Triphenylsilyl chloride 76-86-8 C18H15ClSi
2-Amino-4-phenylbutane 2-Amino-4-phenylbutane 22374-89-6 C10H15N
6-Fluoro-1-indanone 6-Fluoro-1-indanone 1481-32-9 C9H7FO
Triethyloxonium tetrafluoroborate Triethyloxonium tetrafluoroborate 368-39-8 C6H15BF4O
4-[3,5-BIS(TRIFLUOROMETHYL)PHENYL]-3-THIOSEMICARBAZIDE 4-[3,5-BIS(TRIFLUOROMETHYL)PHENYL]-3-THIOSEMICARBAZIDE 38901-31-4 C9H7F6N3S
Chloromethyl isopropyl carbonate Chloromethyl isopropyl carbonate 35180-01-9 C5H9ClO3
Diethyl ketomalonate Diethyl ketomalonate 609-09-6 C7H10O5
5-Fluoro-2-methoxyphenylboronic acid 5-Fluoro-2-methoxyphenylboronic acid 179897-94-0 C7H8BFO3
Diphenylcarbamyl chloride Diphenylcarbamyl chloride 83-01-2 C13H10ClNO
3-Bromobenzenesulfonyl chloride 3-Bromobenzenesulfonyl chloride 2905-24-0 C6H4BrClO2S
D-CAMPHOR D-CAMPHOR 464-49-3 C10H16O
2-Fluoropropiophenone 2-Fluoropropiophenone 446-22-0 C9H9FO
1,4,5,8-Naphthalenetetracarboxylic dianhydride 1,4,5,8-Naphthalenetetracarboxylic dianhydride 81-30-1 C14H4O6
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