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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
2,6-Dichlorobenzyl alcohol 2,6-Dichlorobenzyl alcohol 15258-73-8 C7H6Cl2O
1-Heptyne 1-Heptyne 628-71-7 C7H12
4-(2,4-DICHLOROPHENYL)-3-THIOSEMICARBAZIDE 4-(2,4-DICHLOROPHENYL)-3-THIOSEMICARBAZIDE 13124-11-3 C7H7Cl2N3S
(FORMYLMETHYL)TRIPHENYLPHOSPHONIUM CHLORIDE (FORMYLMETHYL)TRIPHENYLPHOSPHONIUM CHLORIDE 62942-43-2 C20H18ClOP
1,4,8,11-TETRAAZACYCLOTETRADECANE 1,4,8,11-TETRAAZACYCLOTETRADECANE 295-37-4 C10H24N4
(-)-CAMPHOR (-)-CAMPHOR 464-48-2 C10H16O
N-HEPTYLMETHYLAMINE N-HEPTYLMETHYLAMINE 36343-05-2 C8H19N
Methyl 4-nitrobenzoate Methyl 4-nitrobenzoate 619-50-1 C8H7NO4
Hexanoyl chloride Hexanoyl chloride 142-61-0 C6H11ClO
p-Anisohydrazide p-Anisohydrazide 3290-99-1 C8H10N2O2
Methyl 4-bromobutyrate Methyl 4-bromobutyrate 4897-84-1 C5H9BrO2
N-Allylthiourea N-Allylthiourea 109-57-9 C4H8N2S
Dimethyl itaconate Dimethyl itaconate 617-52-7 C7H10O4
2-FLUORO-5-HYDROXYBENZOIC ACID 2-FLUORO-5-HYDROXYBENZOIC ACID 51446-30-1 C7H5FO3
3-Carboxybenzaldehyde 3-Carboxybenzaldehyde 619-21-6 C8H6O3
2-Bromothioanisole 2-Bromothioanisole 19614-16-5 C7H7BrS
2-Oxobutyric acid 2-Oxobutyric acid 600-18-0 C4H6O3
2(5H)-Furanone 2(5H)-Furanone 497-23-4 C4H4O2
4-Iodobenzyl alcohol 4-Iodobenzyl alcohol 18282-51-4 C7H7IO
2-Chloro-2',4'-difluoroacetophenone 2-Chloro-2',4'-difluoroacetophenone 51336-94-8 C8H5ClF2O
2-(TRIFLUOROMETHYL)PHENYLACETONITRILE 2-(TRIFLUOROMETHYL)PHENYLACETONITRILE 3038-47-9 C9H6F3N
Nonafluorobutanesulfonyl fluoride Nonafluorobutanesulfonyl fluoride 375-72-4 C4F10O2S
Benzyldimethylhexadecylammonium chloride Benzyldimethylhexadecylammonium chloride 122-18-9 C25H46ClN
METHYL 3,3-DIMETHOXYPROPIONATE METHYL 3,3-DIMETHOXYPROPIONATE 7424-91-1 C6H12O4
4-Fluorobenzophenone 4-Fluorobenzophenone 345-83-5 C13H9FO
m-Tolyl isocyanate m-Tolyl isocyanate 621-29-4 C8H7NO
trans-Anethole trans-Anethole 4180-23-8 C10H12O
1-Chloroethyl ethyl carbonate 1-Chloroethyl ethyl carbonate 50893-36-2 C5H9ClO3
Methyl 2-chlorobenzoate Methyl 2-chlorobenzoate 610-96-8 C8H7ClO2
Isopropyl isothiocyanate Isopropyl isothiocyanate 2253-73-8 C4H7NS
2-ETHYLPHENYLBORONIC ACID 2-ETHYLPHENYLBORONIC ACID 90002-36-1 C8H11BO2
Tropic acid Tropic acid 529-64-6 C9H10O3
4-METHOXY-2-METHYLBENZONITRILE 4-METHOXY-2-METHYLBENZONITRILE 21883-13-6 C9H9NO
4-Methoxy-3-nitrobenzoic acid 4-Methoxy-3-nitrobenzoic acid 89-41-8 C8H7NO5
4-Biphenylacetonitrile 4-Biphenylacetonitrile 31603-77-7 C14H11N
Panthenol Panthenol 16485-10-2 C9H19NO4
4-AMINOBENZAMIDINE HYDROCHLORIDE 4-AMINOBENZAMIDINE HYDROCHLORIDE 7761-72-0 C7H10ClN3
(2-CHLORO-5-TRIFLUOROMETHYL)PHENYLTHIOUREA (2-CHLORO-5-TRIFLUOROMETHYL)PHENYLTHIOUREA 21714-35-2 C8H6ClF3N2S
Dimethyldimethoxysilane Dimethyldimethoxysilane 1112-39-6 C4H12O2Si
5-CHLORO-2-METHOXYPHENYLTHIOUREA 5-CHLORO-2-METHOXYPHENYLTHIOUREA 63980-69-8 C8H9ClN2OS
Tri(isopropoxy)vinylsilane Tri(isopropoxy)vinylsilane 18023-33-1 C11H24O3Si
4-Hydroxy-2-methoxybenzaldehyde 4-Hydroxy-2-methoxybenzaldehyde 18278-34-7 C8H8O3
2-Naphthalenemethanol 2-Naphthalenemethanol 1592-38-7 C11H10O
3-Chlorobenzyl alcohol 3-Chlorobenzyl alcohol 873-63-2 C7H7ClO
Xanthone Xanthone 90-47-1 C13H8O2
3,5-BIS(TRIFLUOROMETHYL)PHENYL ISOTHIOCYANATE 3,5-BIS(TRIFLUOROMETHYL)PHENYL ISOTHIOCYANATE 23165-29-9 C9H3F6NS
METHYL CHLORODIFLUOROACETATE METHYL CHLORODIFLUOROACETATE 1514-87-0 C3H3ClF2O2
4-Chloro-3-(trifluoromethyl)benzaldehyde 4-Chloro-3-(trifluoromethyl)benzaldehyde 34328-46-6 C8H4ClF3O
tert-Butyl 2-bromo-2-methylpropanoate tert-Butyl 2-bromo-2-methylpropanoate 23877-12-5 C8H15BrO2
Benzyltrimethylammonium hydroxide Benzyltrimethylammonium hydroxide 100-85-6 C10H17NO
3,5-DIMETHOXYBENZYL BROMIDE 3,5-DIMETHOXYBENZYL BROMIDE 877-88-3 C9H11BrO2
Butyl methacrylate Butyl methacrylate 97-88-1 C8H14O2
Bis(cyclohexanone)oxaldihydrazone Bis(cyclohexanone)oxaldihydrazone 370-81-0 C14H22N4O2
DI-TERT-BUTYLSILYL BIS(TRIFLUOROMETHANESULFONATE) DI-TERT-BUTYLSILYL BIS(TRIFLUOROMETHANESULFONATE) 85272-31-7 C10H18F6O6S2Si
trans-Ferulic acid trans-Ferulic acid 537-98-4 C10H10O4
3-(DIPHENYLHYDRAZONOMETHYL)-9-ETHYLCARBAZOLE 3-(DIPHENYLHYDRAZONOMETHYL)-9-ETHYLCARBAZOLE 73276-70-7 C27H23N3
2-CHLOROTHIOANISOLE 2-CHLOROTHIOANISOLE 17733-22-1 C7H7ClS
2-IODO-5-METHYLBENZOIC ACID 2-IODO-5-METHYLBENZOIC ACID 52548-14-8 C8H7IO2
Benzyltrimethylammonium bromide Benzyltrimethylammonium bromide 5350-41-4 C10H16BrN
1,2-Diethoxybenzene 1,2-Diethoxybenzene 2050-46-6 C10H14O2
Diethyl 1,1-cyclobutanedicarboxylate Diethyl 1,1-cyclobutanedicarboxylate 3779-29-1 C10H16O4
PHENYLGLYOXAL PHENYLGLYOXAL 1074-12-0 C8H6O2
Benzyltrimethylammonium tribromide Benzyltrimethylammonium tribromide 111865-47-5 C10H16Br3N
2-Chloro-2-methylpropane 2-Chloro-2-methylpropane 507-20-0 C4H9Cl
3-(4-Chlorophenyl)propanoic acid 3-(4-Chlorophenyl)propanoic acid 2019-34-3 C9H9ClO2
Sodium 4-propan-2-ylbenzenesulfonate Sodium 4-propan-2-ylbenzenesulfonate 32073-22-6 C9H11NaO3S
4'-CHLOROACETANILIDE 4'-CHLOROACETANILIDE 539-03-7 C8H8ClNO
2-Chloroethyl isocyanate 2-Chloroethyl isocyanate 1943-83-5 C3H4ClNO
Ethyl isocyanate Ethyl isocyanate 109-90-0 C3H5NO
Thiazolyl Blue Thiazolyl Blue 298-93-1 C18H16BrN5S
5-(3-PYRIDINYL)-1,3,4-OXADIAZOLE-2-THIOL 5-(3-PYRIDINYL)-1,3,4-OXADIAZOLE-2-THIOL 3690-46-8 C7H5N3OS
Mono-methyl isophthalate Mono-methyl isophthalate 1877-71-0 C9H8O4
4-(N-Methylamino)benzonitrile 4-(N-Methylamino)benzonitrile 4714-62-9 C8H8N2
3-METHYLSULFOLANE 3-METHYLSULFOLANE 872-93-5 C5H10O2S
2-Butanone oxime 2-Butanone oxime 96-29-7 C4H9NO
Diphenolic acid Diphenolic acid 126-00-1 C17H18O4
5-Nitroisatin 5-Nitroisatin 611-09-6 C8H4N2O4
2-Chlorophenyl isocyanate 2-Chlorophenyl isocyanate 3320-83-0 C7H4ClNO
2-Thiophenemethanethiol 2-Thiophenemethanethiol 6258-63-5 C5H6S2
TAS-F TAS-F 59218-87-0 C9H24F2N3SSi
Octadecyltrimethoxysilane Octadecyltrimethoxysilane 3069-42-9 C21H46O3Si
9-Borabicyclo[3.3.1]nonane 9-Borabicyclo[3.3.1]nonane 280-64-8 C8H15B
4-Fluorophenoxyacetic acid 4-Fluorophenoxyacetic acid 405-79-8 C8H7FO3
2-(4-Bromomethyl)phenylpropionic acid 2-(4-Bromomethyl)phenylpropionic acid 111128-12-2 C10H11BrO2
2-Bromoethyl acetate 2-Bromoethyl acetate 927-68-4 C4H7BrO2
Imidazolidinyl urea Imidazolidinyl urea 39236-46-9 C11H16N8O8
4-Cyanobiphenyl 4-Cyanobiphenyl 2920-38-9 C13H9N
4'-tert-Butylacetophenone 4'-tert-Butylacetophenone 943-27-1 C12H16O
2-Bromo-1-[4-(methylsulfonyl)phenyl]-1-ethanone 2-Bromo-1-[4-(methylsulfonyl)phenyl]-1-ethanone 50413-24-6 C9H9BrO3S
3-Aminobenzylalcohol 3-Aminobenzylalcohol 1877-77-6 C7H9NO
Perfluoro-1-octanesulfonyl fluoride Perfluoro-1-octanesulfonyl fluoride 307-35-7 C8F18O2S
ETHYL 4-CHLOROPHENYLACETATE ETHYL 4-CHLOROPHENYLACETATE 14062-24-9 C10H11ClO2
Homophthalic acid Homophthalic acid 89-51-0 C9H8O4
4-Nitrophthalic acid 4-Nitrophthalic acid 610-27-5 C8H5NO6
4-PHENOXYPHENYLTHIOUREA 4-PHENOXYPHENYLTHIOUREA 76839-21-9 C13H12N2OS
2,3-Dichloro-1,4-naphthoquinone 2,3-Dichloro-1,4-naphthoquinone 117-80-6 C10H4Cl2O2
3,5-Dibenzyloxybenzaldehyde 3,5-Dibenzyloxybenzaldehyde 14615-72-6 C21H18O3
TRIS(DIMETHYLAMINO)METHANE TRIS(DIMETHYLAMINO)METHANE 5762-56-1 C7H19N3
trans-4-Pentylcyclohexanecarboxylic acid trans-4-Pentylcyclohexanecarboxylic acid 38289-29-1 C12H22O2
Benzopinacole Benzopinacole 464-72-2 C26H22O2
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