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
1-(3-PHENYLPROPYL)-2-THIOUREA 1-(3-PHENYLPROPYL)-2-THIOUREA 93168-20-8 C10H14N2S
(4-METHOXYBENZYL)HYDRAZINE DIHYDROCHLORIDE (4-METHOXYBENZYL)HYDRAZINE DIHYDROCHLORIDE 2011-48-5 C8H14Cl2N2O
2,6-Diphenylphenol 2,6-Diphenylphenol 2432-11-3 C18H14O
2-PHENYLCYCLOHEXANONE 2-PHENYLCYCLOHEXANONE 1444-65-1 C12H14O
Diethyl isopropylmalonate Diethyl isopropylmalonate 759-36-4 C10H18O4
2-Methoxyphenyl isocyanate 2-Methoxyphenyl isocyanate 700-87-8 C8H7NO2
(TRIMETHYLSILYL)ACETONITRILE (TRIMETHYLSILYL)ACETONITRILE 18293-53-3 C5H11NSi
1,2-Bis(triethoxysilyl)ethane 1,2-Bis(triethoxysilyl)ethane 16068-37-4 C14H34O6Si2
ACETYLTRIMETHYLSILANE ACETYLTRIMETHYLSILANE 13411-48-8 C5H12OSi
1-(3-CYANOPHENYL)-2-THIOUREA 1-(3-CYANOPHENYL)-2-THIOUREA 41835-08-9 C8H7N3S
CYCLODODECANOL CYCLODODECANOL 1724-39-6 C12H24O
1-PHENYLHEXANE 1-PHENYLHEXANE 1077-16-3 C12H18
1-(4-Bromophenyl)ethanol 1-(4-Bromophenyl)ethanol 5391-88-8 C8H9BrO
3,5-DIBROMOBENZENEBORONIC ACID 3,5-DIBROMOBENZENEBORONIC ACID 117695-55-3 C6H5BBr2O2
Methyl 3-formylbenzoate Methyl 3-formylbenzoate 52178-50-4 C9H8O3
8-ETHOXYQUINOLINE-5-SULFONIC ACID SODIUM SALT HEMIHYDRATE 8-ETHOXYQUINOLINE-5-SULFONIC ACID SODIUM SALT HEMIHYDRATE 80789-76-0 C11H14NNaO5S
Bromoacetyl chloride Bromoacetyl chloride 22118-09-8 C2H2BrClO
1,4-Diiodobutane 1,4-Diiodobutane 628-21-7 C4H8I2
EICOSYLTRICHLOROSILANE EICOSYLTRICHLOROSILANE 18733-57-8 C20H41Cl3Si
3,5-Diiodosalicylic acid 3,5-Diiodosalicylic acid 133-91-5 C7H4I2O3
METHYL 2-FLUOROACRYLATE METHYL 2-FLUOROACRYLATE 2343-89-7 C4H5FO2
Triisooctylamine Triisooctylamine 25549-16-0 C24H51N
1,3-DIOCTYL-2-THIOUREA 1,3-DIOCTYL-2-THIOUREA 34853-57-1 C17H36N2S
4-METHYLTHIAZOLE-2-THIOL 4-METHYLTHIAZOLE-2-THIOL 4498-39-9 C4H5NS2
(PHENYLTHIO)ACETIC ACID (PHENYLTHIO)ACETIC ACID 103-04-8 C8H8O2S
BENZALDEHYDE N,N-DIMETHYLHYDRAZONE BENZALDEHYDE N,N-DIMETHYLHYDRAZONE 1075-70-3 C9H12N2
2,3,4,5,6-PENTAFLUOROSTYRENE 2,3,4,5,6-PENTAFLUOROSTYRENE 653-34-9 C8H3F5
4-Chlorobenzenesulfonic acid 4-Chlorobenzenesulfonic acid 98-66-8 C6H5ClO3S
PHENYLSELENOL PHENYLSELENOL 645-96-5 C6H6Se
N,N'-Diethylthiourea N,N'-Diethylthiourea 105-55-5 C5H12N2S
Phenethyl caffeate Phenethyl caffeate 104594-70-9 C17H16O4
4-Propylbenzoic acid 4-Propylbenzoic acid 2438-05-3 C10H12O2
FLAVONOL-2'-SULFONIC ACID SODIUM SALT FLAVONOL-2'-SULFONIC ACID SODIUM SALT 77125-87-2 C15H9NaO6S
Di(ethylene glycol) vinyl ether Di(ethylene glycol) vinyl ether 929-37-3 C6H12O3
3-ETHYLSULFONYLPHENYLBORONIC ACID 3-ETHYLSULFONYLPHENYLBORONIC ACID 845870-47-5 C8H11BO4S
1-Iodohexane 1-Iodohexane 638-45-9 C6H13I
Sodium ethanesulfinate Sodium ethanesulfinate 20035-08-9 C2H5NaO2S
2,4,5-TRICHLOROBENZENESULFONYL CHLORIDE 2,4,5-TRICHLOROBENZENESULFONYL CHLORIDE 15945-07-0 C6H2Cl4O2S
1-DODECYNE 1-DODECYNE 765-03-7 C12H22
BIS(TRICHLOROSILYL)ACETYLENE BIS(TRICHLOROSILYL)ACETYLENE 18038-55-6 C2Cl6Si2
Thianthrene Thianthrene 92-85-3 C12H8S2
2,3,5,6-TETRAFLUOROANISOLE 2,3,5,6-TETRAFLUOROANISOLE 2324-98-3 C7H4F4O
HEXADECANEDIOIC ACID HEXADECANEDIOIC ACID 505-54-4 C16H30O4
TRANS-ACONITIC ACID TRANS-ACONITIC ACID 4023-65-8 C6H6O6
4-(4-NITROPHENYLAZO)-1-NAPHTHOL 4-(4-NITROPHENYLAZO)-1-NAPHTHOL 5290-62-0 C16H11N3O3
Difurazone Difurazone 804-36-4 C14H12N6O6
2-FLUOROPHENYL ISOTHIOCYANATE 2-FLUOROPHENYL ISOTHIOCYANATE 38985-64-7 C7H4FNS
VINYLTRI-T-BUTOXYSILANE VINYLTRI-T-BUTOXYSILANE 5356-88-7 C14H30O3Si
DL-GAMMA-AMINO-B-HYDROXYBUTYRIC ACIDCRYS TALLINE DL-GAMMA-AMINO-B-HYDROXYBUTYRIC ACIDCRYS TALLINE 924-49-2 C4H9NO3
Vinyl tris(dimethylsiloxy)silane Vinyl tris(dimethylsiloxy)silane 160172-46-3 C8H24O3Si4
2-ANTHRACENEBORONIC ACID 2-ANTHRACENEBORONIC ACID 141981-64-8 C14H11BO2
Methyl nitroacetate Methyl nitroacetate 2483-57-0 C3H5NO4
Benzylmalonic acid Benzylmalonic acid 616-75-1 C10H10O4
1,5-DICHLOROANTHRAQUINONE 1,5-DICHLOROANTHRAQUINONE 82-46-2 C14H6Cl2O2
4-Bromo-benzenesulfonic acid potassium salt 4-Bromo-benzenesulfonic acid potassium salt 66788-58-7 C6H4BrKO3S
2-FLUOROPHENYLMETHYLSULFONE 2-FLUOROPHENYLMETHYLSULFONE 654-47-7 C7H7FO2S
2-ETHOXY-MALONIC ACID DIETHYL ESTER 2-ETHOXY-MALONIC ACID DIETHYL ESTER 37555-99-0 C9H16O5
1-Phenylcyclobutanecarbonitrile 1-Phenylcyclobutanecarbonitrile 14377-68-5 C11H11N
2,3-Dibromopropionyl chloride 2,3-Dibromopropionyl chloride 18791-02-1 C3H3Br2ClO
N-HEXYLSILANE N-HEXYLSILANE 1072-14-6 C6H16Si
2-TRIMETHYLSILYL-1,3-DITHIANE 2-TRIMETHYLSILYL-1,3-DITHIANE 13411-42-2 C7H16S2Si
2',5'-DIMETHYLACETOPHENONE 2',5'-DIMETHYLACETOPHENONE 2142-73-6 C10H12O
BENZYL PHENYL SULFIDE BENZYL PHENYL SULFIDE 831-91-4 C13H12S
BENZANILIDE BENZANILIDE 93-98-1 C13H11NO
2-TRIMETHYLSILYLOXY-3-BUTYNE 2-TRIMETHYLSILYLOXY-3-BUTYNE 17869-76-0 C7H14OSi
beta-Methylphenethyl alcohol beta-Methylphenethyl alcohol 1123-85-9 C9H12O
3-PHENYLPHENOL 3-PHENYLPHENOL 580-51-8 C12H10O
METHYL DIFLUOROACETATE METHYL DIFLUOROACETATE 433-53-4 C3H4F2O2
2-Methylene-1,3-propanediol 2-Methylene-1,3-propanediol 3513-81-3 C4H8O2
1-INDANOL 1-INDANOL 6351-10-6 C9H10O
3-ETHOXY-2-CYCLOHEXEN-1-ONE 3-ETHOXY-2-CYCLOHEXEN-1-ONE 5323-87-5 C8H12O2
1-CYCLOPROPYLETHANOL 1-CYCLOPROPYLETHANOL 765-42-4 C5H10O
2-Isocyanatoethyl methacrylate 2-Isocyanatoethyl methacrylate 30674-80-7 C7H9NO3
9-ETHYL-3-[N-ETHYL-N-(M-TOLYL)HYDRAZONOMETHYL]CARBAZOLE 9-ETHYL-3-[N-ETHYL-N-(M-TOLYL)HYDRAZONOMETHYL]CARBAZOLE 81380-24-7 C24H25N3
Tioxolone Tioxolone 4991-65-5 C7H4O3S
4-ETHYLTHIOPHENOL 4-ETHYLTHIOPHENOL 4946-13-8 C8H10S
Rhodamine 123 Rhodamine 123 62669-70-9 C21H17ClN2O3
1,2-(Methylenedioxy)-4-nitrobenzene 1,2-(Methylenedioxy)-4-nitrobenzene 2620-44-2 C7H5NO4
1,8-DIIODOOCTANE 1,8-DIIODOOCTANE 24772-63-2 C8H16I2
1-(4-Methylphenyl)ethanol 1-(4-Methylphenyl)ethanol 536-50-5 C9H12O
Hydroquinone bis(2-hydroxyethyl)ether Hydroquinone bis(2-hydroxyethyl)ether 104-38-1 C10H14O4
1,3-DIETHYNYLBENZENE 1,3-DIETHYNYLBENZENE 1785-61-1 C10H6
Didodecyl sulfide Didodecyl sulfide 2469-45-6 C24H50S
Butyl glycidyl ether Butyl glycidyl ether 2426-08-6 C7H14O2
4-Hydroxyphthalic acid 4-Hydroxyphthalic acid 610-35-5 C8H6O5
4-(N-OCTYLOXY)BENZENEBORONIC ACID 4-(N-OCTYLOXY)BENZENEBORONIC ACID 121554-09-4 C14H23BO3
Butoxybenzene Butoxybenzene 1126-79-0 C10H14O
4-ACETOXYBENZALDEHYDE 4-ACETOXYBENZALDEHYDE 878-00-2 C9H8O3
3-METHOXYCATECHOL 3-METHOXYCATECHOL 934-00-9 C7H8O3
3-CHLOROPHENETHYLALCOHOL 3-CHLOROPHENETHYLALCOHOL 5182-44-5 C8H9ClO
N,N'-DIHEXYLTHIOUREA N,N'-DIHEXYLTHIOUREA 21071-28-3 C13H28N2S
3,4-DIFLUOROBENZAMIDE 3,4-DIFLUOROBENZAMIDE 85118-04-3 C7H5F2NO
3-FORMYL BENZAMIDINE HYDROCHLORIDE 3-FORMYL BENZAMIDINE HYDROCHLORIDE 57081-01-3 C8H9ClN2O
Methyl naphthalene-1-acetate Methyl naphthalene-1-acetate 2876-78-0 C13H12O2
2,6-DICHLOROPHENETHYLAMINE 2,6-DICHLOROPHENETHYLAMINE 14573-23-0 C8H9Cl2N
10,12-PENTACOSADIYNOIC ACID 10,12-PENTACOSADIYNOIC ACID 66990-32-7 C25H42O2
2-(Methacryloyloxy)ethyl acetoacetate 2-(Methacryloyloxy)ethyl acetoacetate 21282-97-3 C10H14O5
Ethyl 4-bromocrotonate Ethyl 4-bromocrotonate 37746-78-4 C6H9BrO2
4-(ETHYLSULFONYL)PHENYLBORONIC ACID 4-(ETHYLSULFONYL)PHENYLBORONIC ACID 352530-24-6 C8H11BO4S
Ethyl trimethylacetate Ethyl trimethylacetate 3938-95-2 C7H14O2
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.