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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
2-Ethoxybenzonitrile 2-Ethoxybenzonitrile 6609-57-0 C9H9NO
3,4,5,6-Tetrafluorophthalonitrile 3,4,5,6-Tetrafluorophthalonitrile 1835-65-0 C8F4N2
1-(2,5-DIMETHOXYPHENYL)-2-THIOUREA 1-(2,5-DIMETHOXYPHENYL)-2-THIOUREA 67617-98-5 C9H12N2O2S
2-Butynoic acid 2-Butynoic acid 590-93-2 C4H4O2
ACETONE-BENZOTHIAZOLYL-2-HYDRAZONE ACETONE-BENZOTHIAZOLYL-2-HYDRAZONE 6277-26-5 C10H11N3S
Diphenylacetylene Diphenylacetylene 501-65-5 C14H10
Mono-methyl succinate Mono-methyl succinate 3878-55-5 C5H8O4
2'-Hydroxy-5'-methoxyacetophenone 2'-Hydroxy-5'-methoxyacetophenone 705-15-7 C9H10O3
1-CYCLOHEXYL-2-THIOUREA 1-CYCLOHEXYL-2-THIOUREA 5055-72-1 C7H14N2S
2,2-Dimethylglutaric acid 2,2-Dimethylglutaric acid 681-57-2 C7H12O4
trans-1,4-Cyclohexanedicarboxybic acid trans-1,4-Cyclohexanedicarboxybic acid 619-82-9 C8H12O4
4-Biphenylmethanol 4-Biphenylmethanol 3597-91-9 C13H12O
Anilino-methyl-triethoxysilane Anilino-methyl-triethoxysilane 3473-76-5 C13H23NO3Si
5-BROMO-2-HYDROXYBENZONITRILE 5-BROMO-2-HYDROXYBENZONITRILE 40530-18-5 C7H4BrNO
4,5-DIPHENYL-2-IMIDAZOLETHIOL 4,5-DIPHENYL-2-IMIDAZOLETHIOL 2349-58-8 C15H12N2S
PHENYL VINYL SULFOXIDE PHENYL VINYL SULFOXIDE 20451-53-0 C8H8OS
TRANS-2-BROMO-1-INDANOL TRANS-2-BROMO-1-INDANOL 10368-44-2 C9H9BrO
METHYL LAURATE METHYL LAURATE 111-82-0 C13H26O2
DODECAMETHYLPENTASILOXANE DODECAMETHYLPENTASILOXANE 141-63-9 C12H36O4Si5
Allylacetic acid Allylacetic acid 591-80-0 C5H8O2
TRIMETHYLSILYLMETHYL AZIDE TRIMETHYLSILYLMETHYL AZIDE 87576-94-1 C4H11N3Si
N-Chlorophthalimide N-Chlorophthalimide 3481-09-2 C8H4ClNO2
5-Bromo-2-hydroxybenzyl alcohol 5-Bromo-2-hydroxybenzyl alcohol 2316-64-5 C7H7BrO2
Di-tert-butyl disulfide Di-tert-butyl disulfide 110-06-5 C8H18S2
4-Hydroxyindan-1-one 4-Hydroxyindan-1-one 40731-98-4 C9H8O2
2,3,4-Trimethoxybenzoic acid 2,3,4-Trimethoxybenzoic acid 573-11-5 C10H12O5
8-Bromo-1-octanol 8-Bromo-1-octanol 50816-19-8 C8H17BrO
Phenanthrenequinone Phenanthrenequinone 84-11-7 C14H8O2
BIS(4-NITROPHENYL) SULFONE BIS(4-NITROPHENYL) SULFONE 1156-50-9 C12H8N2O6S
2-HYDROXYACETOPHENONE 2-HYDROXYACETOPHENONE 582-24-1 C8H8O2
Triethylsilyl trifluoromethanesulfonate Triethylsilyl trifluoromethanesulfonate 79271-56-0 C7H15F3O3SSi
2-AMINO-5-CHLOROTHIOPHENOL 2-AMINO-5-CHLOROTHIOPHENOL 23474-98-8 C6H6ClNS
Diborane Diborane 19287-45-7 B2H6
1,3-Dihydroxyacetone 1,3-Dihydroxyacetone 96-26-4 C3H6O3
Methacetin Methacetin 51-66-1 C9H11NO2
2-Amino-3-methylphenol 2-Amino-3-methylphenol 2835-97-4 C7H9NO
6-Cyano-2-naphthol 6-Cyano-2-naphthol 52927-22-7 C11H7NO
Bicinchoninic Acid Disodium Salt Bicinchoninic Acid Disodium Salt 979-88-4 C20H13N2NaO4
4-FLUOROPHENYL ISOTHIOCYANATE 4-FLUOROPHENYL ISOTHIOCYANATE 1544-68-9 C7H4FNS
trans-1,3-Dichloropropene trans-1,3-Dichloropropene 10061-02-6 C3H4Cl2
	Triethylene glycol dimethyl ether Triethylene glycol dimethyl ether 112-49-2 C8H18O4
(4R,6R)-tert-Butyl-6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate (4R,6R)-tert-Butyl-6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate 125971-94-0 C14H23NO4
2,4,6-Trichlorobenzoic acid 2,4,6-Trichlorobenzoic acid 50-43-1 C7H3Cl3O2
3-PHENOXYBENZHYDRAZIDE 3-PHENOXYBENZHYDRAZIDE 206761-84-4 C13H12N2O2
3,4,5-Trimethoxybenzyl alcohol 3,4,5-Trimethoxybenzyl alcohol 3840-31-1 C10H14O4
3,4-Dimethoxyacetophenone 3,4-Dimethoxyacetophenone 1131-62-0 C10H12O3
Acenaphthenequinone Acenaphthenequinone 82-86-0 C12H6O2
1,3-BIS(TRIMETHYLSILOXY)-1,3-DIMETHYLDISILOXANE 1,3-BIS(TRIMETHYLSILOXY)-1,3-DIMETHYLDISILOXANE 16066-09-4 C8H26O3Si4
5-Chloro-2-(methylamino)benzophenone 5-Chloro-2-(methylamino)benzophenone 1022-13-5 C14H12ClNO
4,4'-Oxydiphthalic anhydride 4,4'-Oxydiphthalic anhydride 1823-59-2 C16H6O7
Isopropylparaben Isopropylparaben 4191-73-5 C10H12O3
FORMAMIDINE HYDROCHLORIDE FORMAMIDINE HYDROCHLORIDE 6313-33-3 CH5ClN2
N-NONANE N-NONANE 111-84-2 C9H20
(4-Methylthio)toluene (4-Methylthio)toluene 623-13-2 C8H10S
Tetraethylammonium tetrafluoroborate Tetraethylammonium tetrafluoroborate 429-06-1 C8H20BF4N
(3-Bromophenyl)thiourea (3-Bromophenyl)thiourea 21327-14-0 C7H7BrN2S
3,5-Bis(trifluoromethyl)nitrobenzene 3,5-Bis(trifluoromethyl)nitrobenzene 328-75-6 C8H3F6NO2
(R)-(+)-2-Chloropropionic acid (R)-(+)-2-Chloropropionic acid 7474-05-7 C3H5ClO2
Piperonyl alcohol Piperonyl alcohol 495-76-1 C8H8O3
METHYL STEARATE METHYL STEARATE 112-61-8 C19H38O2
2-Bromoanthracene 2-Bromoanthracene 7321-27-9 C14H9Br
3,3-Dimethylglutaric acid 3,3-Dimethylglutaric acid 4839-46-7 C7H12O4
2-Ethyl-1-butanol 2-Ethyl-1-butanol 97-95-0 C6H14O
2-BROMO-3,3,3-TRIFLUOROPROPENE 2-BROMO-3,3,3-TRIFLUOROPROPENE 1514-82-5 C3H2BrF3
L-(-)-O-TOSYLLACTIC ACID ETHYL ESTER L-(-)-O-TOSYLLACTIC ACID ETHYL ESTER 57057-80-4 C12H16O5S
4-(TRIFLUOROMETHOXY)PHENYLACETIC ACID 4-(TRIFLUOROMETHOXY)PHENYLACETIC ACID 4315-07-5 C9H7F3O3
3,5-Dihydroxybenzaldehyde 3,5-Dihydroxybenzaldehyde 26153-38-8 C7H6O3
2-Ethyltoluene 2-Ethyltoluene 611-14-3 C9H12
TETRAETHYLAMMONIUM TRIFLUOROMETHANESULFONATE TETRAETHYLAMMONIUM TRIFLUOROMETHANESULFONATE 35895-69-3 C9H20F3NO3S
HEPTADECAFLUORO-1-OCTANESULFONIC ACID LITHIUM SALT HEPTADECAFLUORO-1-OCTANESULFONIC ACID LITHIUM SALT 29457-72-5 C8H2F17LiO3S
2-BROMO-4,5-DIMETHOXYBENZOIC ACID 2-BROMO-4,5-DIMETHOXYBENZOIC ACID 6286-46-0 C9H9BrO4
4-Iodobenzenesulfonyl chloride 4-Iodobenzenesulfonyl chloride 98-61-3 C6H4ClIO2S
2,3,4-Trihydroxybenzoic acid 2,3,4-Trihydroxybenzoic acid 610-02-6 C7H6O5
Ethyl hydrogen malonate Ethyl hydrogen malonate 1071-46-1 C5H8O4
Thioglycolic acid Thioglycolic acid 68-11-1 C2H4O2S
3-Fluoro-4-methoxyacetophenone 3-Fluoro-4-methoxyacetophenone 455-91-4 C9H9FO2
1-(3-ACETYLPHENYL)-2-THIOUREA 1-(3-ACETYLPHENYL)-2-THIOUREA 86801-04-9 C9H10N2OS
N-OCTADECYLTRICHLOROSILANE N-OCTADECYLTRICHLOROSILANE 112-04-9 C18H37Cl3Si
3,4-Dihydroxybenzonitrile 3,4-Dihydroxybenzonitrile 17345-61-8 C7H5NO2
N,N-Dimethyformamide diethy acetal N,N-Dimethyformamide diethy acetal 1188-33-6 C7H17NO2
2,2,2-Trichloroacetamide 2,2,2-Trichloroacetamide 594-65-0 C2H2Cl3NO
Chloroacetaldehyde Chloroacetaldehyde 107-20-0 C2H3ClO
2-Amino-4-tert-butylphenol 2-Amino-4-tert-butylphenol 1199-46-8 C10H15NO
2-(5-Norborene-2,3-dicarboximido)-1,1,3,3-tetramethyluronium tetrafluoroborate 2-(5-Norborene-2,3-dicarboximido)-1,1,3,3-tetramethyluronium tetrafluoroborate 125700-73-4 C14H20BF4N3O3
(S)-5-Hydroxymethyldihydrofuran-2-one (S)-5-Hydroxymethyldihydrofuran-2-one 32780-06-6 C5H8O3
DL-CAMPHORQUINONE DL-CAMPHORQUINONE 10373-78-1 C10H14O2
4-Bromobenzyl chloride 4-Bromobenzyl chloride 589-17-3 C7H6BrCl
BENZALDEHYDE PHENYLHYDRAZONE BENZALDEHYDE PHENYLHYDRAZONE 588-64-7 C13H12N2
Ethyldichlorosilane Ethyldichlorosilane 1789-58-8 C2H6Cl2Si
3,5-Dibromo-4-hydroxybenzoic acid 3,5-Dibromo-4-hydroxybenzoic acid 3337-62-0 C7H4Br2O3
1-BENZOYL-3-(2-PYRIDYL)-2-THIOUREA 1-BENZOYL-3-(2-PYRIDYL)-2-THIOUREA 4921-86-2 C13H11N3OS
1-Mercaptooctane 1-Mercaptooctane 111-88-6 C8H18S
2,4,6-Tribromophenol 2,4,6-Tribromophenol 118-79-6 C6H3Br3O
Ethoxytrimethylsilane Ethoxytrimethylsilane 1825-62-3 C5H14OSi
3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)toluene 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)toluene 253342-48-2 C13H19BO2
1,2,3-Trimethylbenzene 1,2,3-Trimethylbenzene 526-73-8 C9H12
1-Chloropropane 1-Chloropropane 540-54-5 C3H7Cl
Ethyl isothiocyanate Ethyl isothiocyanate 542-85-8 C3H5NS
1,2,3-Trichloropropane 1,2,3-Trichloropropane 96-18-4 C3H5Cl3
2-(2-thienyl)ethyl toluene-p-sulphonate 2-(2-thienyl)ethyl toluene-p-sulphonate 40412-06-4 C13H14O3S2
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