成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

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.

Click on the specific product, view the latest prices of the products, information, serving information
Structure Chemical Name CAS MF
ALLYLTRIPHENYLSILANE ALLYLTRIPHENYLSILANE 18752-21-1 C21H20Si
9-ETHYLCARBAZOLE-3-CARBOXALDEHYDE N-BENZYL-N-PHENYLHYDRAZONE 9-ETHYLCARBAZOLE-3-CARBOXALDEHYDE N-BENZYL-N-PHENYLHYDRAZONE 75238-79-8 C28H25N3
4-Cyanobenzylamine 4-Cyanobenzylamine 10406-25-4 C8H8N2
4-Phenoxybutanoic acid 4-Phenoxybutanoic acid 6303-58-8 C10H12O3
3-Glycidoxypropyldimethoxymethylsilane 3-Glycidoxypropyldimethoxymethylsilane 65799-47-5 C9H20O4Si
TERT-BUTYLDIMETHYLSILANOL TERT-BUTYLDIMETHYLSILANOL 18173-64-3 C6H16OSi
2-Naphthyl benzoate 2-Naphthyl benzoate 93-44-7 C17H12O2
S-TRITYL-3-MERCAPTOPROPIONIC ACID S-TRITYL-3-MERCAPTOPROPIONIC ACID 27144-18-9 C22H20O2S
4,5-DIBROMO-N-METHOXY-N-METHYL-2-FURANCARBOXAMIDE 4,5-DIBROMO-N-METHOXY-N-METHYL-2-FURANCARBOXAMIDE 502639-02-3 C7H7Br2NO3
3-(TRIFLUOROMETHYL)PHENYL ISOTHIOCYANATE 3-(TRIFLUOROMETHYL)PHENYL ISOTHIOCYANATE 1840-19-3 C8H4F3NS
2-HEXANOL 2-HEXANOL 626-93-7 C6H14O
3-Acetoxy-o-toluic acid 3-Acetoxy-o-toluic acid 168899-58-9 C10H10O4
2,4-Dimethoxybenzonitrile 2,4-Dimethoxybenzonitrile 4107-65-7 C9H9NO2
DIETHYL SUBERATE DIETHYL SUBERATE 2050-23-9 C12H22O4
N-HEXYL ACRYLATE N-HEXYL ACRYLATE 2499-95-8 C9H16O2
2,3-DIMETHYL-2,3-DINITROBUTANE 2,3-DIMETHYL-2,3-DINITROBUTANE 3964-18-9 C6H12N2O4
3-SULFOLENE 3-SULFOLENE 77-79-2 C4H6O2S
Tri(Ethylene Glycol) DI-P-Toluenesulfonate Tri(Ethylene Glycol) DI-P-Toluenesulfonate 19249-03-7 C20H26O8S2
DI-P-TOLYL SULFONE DI-P-TOLYL SULFONE 599-66-6 C14H14O2S
1-PHENYL-3-(2-THIAZOLYL)-2-THIOUREA 1-PHENYL-3-(2-THIAZOLYL)-2-THIOUREA 14901-16-7 C10H9N3S2
4-CHLOROBENZYL MERCAPTAN 4-CHLOROBENZYL MERCAPTAN 6258-66-8 C7H7ClS
Tetrabutyl orthosilicate Tetrabutyl orthosilicate 4766-57-8 C16H36O4Si
4-Butoxyphenylboronic Acid 4-Butoxyphenylboronic Acid 105365-51-3 C10H15BO3
N-METHYL-N,O-BIS(TRIMETHYLSILYL)HYDROXYLAMINE N-METHYL-N,O-BIS(TRIMETHYLSILYL)HYDROXYLAMINE 22737-33-3 C7H21NOSi2
(3-CYANOPROPYL)DIMETHYLCHLOROSILANE (3-CYANOPROPYL)DIMETHYLCHLOROSILANE 18156-15-5 C6H12ClNSi
METHYL ALPHA-BROMOPHENYLACETATE METHYL ALPHA-BROMOPHENYLACETATE 3042-81-7 C9H9BrO2
2-Fluorophenylhydrazine 2-Fluorophenylhydrazine 2368-80-1 C6H7FN2
3,5-DIMETHYLPHENYL ISOCYANATE 3,5-DIMETHYLPHENYL ISOCYANATE 54132-75-1 C9H9NO
4-Biphenylcarbonyl chloride 4-Biphenylcarbonyl chloride 14002-51-8 C13H9ClO
4-Aminobenzophenone 4-Aminobenzophenone 1137-41-3 C13H11NO
1-HYDROXYPYRENE 1-HYDROXYPYRENE 5315-79-7 C16H10O
METHYLPHENYLVINYLSILANE METHYLPHENYLVINYLSILANE 17878-39-6 C9H12Si
BENZYLOXYACETALDEHYDE BENZYLOXYACETALDEHYDE 60656-87-3 C9H10O2
3-Ethoxybenzaldehyde 3-Ethoxybenzaldehyde 22924-15-8 C9H10O2
1,2-DICHLOROTETRAMETHYLDISILANE 1,2-DICHLOROTETRAMETHYLDISILANE 4342-61-4 C4H12Cl2Si2
TRI-T-BUTOXYSILANOL TRI-T-BUTOXYSILANOL 18166-43-3 C12H28O4Si
ETHYL (S)-3,4-EPOXYBUTANOATE ETHYL (S)-3,4-EPOXYBUTANOATE 112083-63-3 C6H10O3
10-UNDECENOYL CHLORIDE 10-UNDECENOYL CHLORIDE 38460-95-6 C11H19ClO
N-MONOACETYL-4,4'-DIAMINODIPHENYL SULFONE N-MONOACETYL-4,4'-DIAMINODIPHENYL SULFONE 565-20-8 C14H14N2O3S
2,4,6-TRIHYDROXYBENZALDEHYDE 2,4,6-TRIHYDROXYBENZALDEHYDE 487-70-7 C7H6O4
Tetrakis(decyl)ammonium bromide Tetrakis(decyl)ammonium bromide 14937-42-9 C40H84BrN
2-Sulfobenzoic anhydride 2-Sulfobenzoic anhydride 81-08-3 C7H4O4S
Glyoxalbis(2-hydroxyanil) Glyoxalbis(2-hydroxyanil) 1149-16-2 C14H12N2O2
Ethyl 2-methylbenzoate Ethyl 2-methylbenzoate 87-24-1 C10H12O2
3-FLUOROBENZAMIDE 3-FLUOROBENZAMIDE 455-37-8 C7H6FNO
BROMOACETONE BROMOACETONE 598-31-2 C3H5BrO
3-Methoxybutyl acetate 3-Methoxybutyl acetate 4435-53-4 C7H14O3
PENTACHLOROTHIOPHENOL PENTACHLOROTHIOPHENOL 133-49-3 C6HCl5S
2-Bromo-1-indanone 2-Bromo-1-indanone 1775-27-5 C9H7BrO
5-BROMOPENTYL ACETATE 5-BROMOPENTYL ACETATE 15848-22-3 C7H13BrO2
Dichloromethylvinylsilane Dichloromethylvinylsilane 124-70-9 C3H6Cl2Si
Roxarsone Roxarsone 121-19-7 C6H6AsNO6
ALPHA-METHYL-GAMMA-BUTYROLACTONE ALPHA-METHYL-GAMMA-BUTYROLACTONE 1679-47-6 C5H8O2
2-CHLOROETHYL PHENYL SULFIDE 2-CHLOROETHYL PHENYL SULFIDE 5535-49-9 C8H9ClS
2,4,4-TRIMETHYL-2-PENTANETHIOL 2,4,4-TRIMETHYL-2-PENTANETHIOL 141-59-3 C8H18S
P-TOLUENETHIOSULFONIC ACID POTASSIUM SALT P-TOLUENETHIOSULFONIC ACID POTASSIUM SALT 28519-50-8 C7H7KO2S2
METHYL HEPTADECANOATE METHYL HEPTADECANOATE 1731-92-6 C18H36O2
3,4'-Dichloropropiophenone 3,4'-Dichloropropiophenone 3946-29-0 C9H8Cl2O
Ethylene glycol diglycidyl ether Ethylene glycol diglycidyl ether 2224-15-9 C8H14O4
N-Butylphthalimide N-Butylphthalimide 1515-72-6 C12H13NO2
2,3,4-Trimethoxyphenylboronic acid 2,3,4-Trimethoxyphenylboronic acid 118062-05-8 C9H13BO5
TRANS-STILBENE TRANS-STILBENE 103-30-0 C14H12
Ethyl trifluoromethanesulfonate Ethyl trifluoromethanesulfonate 425-75-2 C3H5F3O3S
Diethyl butylmalonate Diethyl butylmalonate 133-08-4 C11H20O4
(1S)-1-(2-CHLOROPHENYL)ETHANE-1,2-DIOL (1S)-1-(2-CHLOROPHENYL)ETHANE-1,2-DIOL 133082-13-0 C8H9ClO2
METHYL 4-(BROMOMETHYL)-3-METHOXYBENZOATE METHYL 4-(BROMOMETHYL)-3-METHOXYBENZOATE 70264-94-7 C10H11BrO3
N-Cyanoethyl-hydroxyethyl aniline N-Cyanoethyl-hydroxyethyl aniline 92-64-8 C11H14N2O
TRIETHOXYCHLOROSILANE TRIETHOXYCHLOROSILANE 4667-99-6 C6H15ClO3Si
(+)-DIPIVALOYL-D-TARTARIC ACID (+)-DIPIVALOYL-D-TARTARIC ACID 76769-55-6 C14H22O8
2,2-Diethoxyethanol 2,2-Diethoxyethanol 621-63-6 C6H14O3
Ethyl pivaloylacetate Ethyl pivaloylacetate 17094-34-7 C9H16O3
2-Benzyloxybenzaldehyde 2-Benzyloxybenzaldehyde 5896-17-3 C14H12O2
THIOBIS(HEXAMETHYLDISILAZANE) THIOBIS(HEXAMETHYLDISILAZANE) 18243-89-5 C12H36N2SSi4
2,4,6-TRIHYDROXYBENZOIC ACID MONOHYDRATE 2,4,6-TRIHYDROXYBENZOIC ACID MONOHYDRATE 71989-93-0 C7H8O6
1,2-DIHYDRONAPHTHALENE 1,2-DIHYDRONAPHTHALENE 447-53-0 C10H10
2-(Trifluoromethyl)cinnamic acid 2-(Trifluoromethyl)cinnamic acid 2062-25-1 C10H7F3O2
3-Methoxy-2-nitrobenzaldehyde 3-Methoxy-2-nitrobenzaldehyde 53055-05-3 C8H7NO4
2-FLUOROTHIOANISOLE 2-FLUOROTHIOANISOLE 655-20-9 C7H7FS
m-Tolyldiethanolamine m-Tolyldiethanolamine 91-99-6 C11H17NO2
3-Ethoxy-1-propanol 3-Ethoxy-1-propanol 111-35-3 C5H12O2
4-Chloro-1,3-benzenediamine 4-Chloro-1,3-benzenediamine 5131-60-2 C6H7ClN2
1-CYCLOHEXYL-3-PHENYL-2-THIOUREA 1-CYCLOHEXYL-3-PHENYL-2-THIOUREA 722-03-2 C13H18N2S
Dibenz[a,h]anthracene Dibenz[a,h]anthracene 53-70-3 C22H14
3-METHACRYLOXYPROPYLDIMETHYLCHLOROSILANE 3-METHACRYLOXYPROPYLDIMETHYLCHLOROSILANE 24636-31-5 C9H17ClO2Si
2-NITROPHENYL OCTYL ETHER 2-NITROPHENYL OCTYL ETHER 37682-29-4 C14H21NO3
1-(2-Pyrimidyl)piperazine hydrochloride 1-(2-Pyrimidyl)piperazine hydrochloride 78069-54-2 C8H13ClN4
BIS(DIMETHYLAMINO)METHYLSILANE BIS(DIMETHYLAMINO)METHYLSILANE 22705-33-5 C5H16N2Si
TETRABROMOPHENOLPHTHALEIN ETHYL ESTER TETRABROMOPHENOLPHTHALEIN ETHYL ESTER 1176-74-5 C22H14Br4O4
ETHYL ISOPROPYL SULFONE ETHYL ISOPROPYL SULFONE 4853-75-2 C5H12O2S
2-PHENOXYBENZOIC ACID 2-PHENOXYBENZOIC ACID 2243-42-7 C13H10O3
Ethyl 4,4,4-trifluorobutyrate Ethyl 4,4,4-trifluorobutyrate 371-26-6 C6H9F3O2
2-Iodoethanol 2-Iodoethanol 624-76-0 C2H5IO
1-(3-CHLORO-2-METHYLPHENYL)-2-THIOUREA 1-(3-CHLORO-2-METHYLPHENYL)-2-THIOUREA 63980-70-1 C8H9ClN2S
1-Adamantanecarbonitrile 1-Adamantanecarbonitrile 23074-42-2 C11H15N
S-PHENYL THIOACETATE S-PHENYL THIOACETATE 934-87-2 C8H8OS
OCTANENITRILE OCTANENITRILE 124-12-9 C8H15N
(R)-(-)-Methyl glycidyl ether (R)-(-)-Methyl glycidyl ether 64491-70-9 C4H8O2
1-(3,4-METHYLENEDIOXYPHENYL)-2-THIOUREA 1-(3,4-METHYLENEDIOXYPHENYL)-2-THIOUREA 65069-55-8 C8H8N2O2S
1-Hexyl-3-methylimidazolium hexafluorophosphate 1-Hexyl-3-methylimidazolium hexafluorophosphate 304680-35-1 C10H19F6N2P
GAMMA-TERPINENE GAMMA-TERPINENE 99-85-4 C10H16
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.