一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

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
2-Amino-6-cyclopropylphenylboronic acid 2-Amino-6-cyclopropylphenylboronic acid 2225181-59-7 C9H12BNO2
2-Bromo-4-(4-methylpiperidin-1-yl)phenylboronic acid 2-Bromo-4-(4-methylpiperidin-1-yl)phenylboronic acid 2225180-91-4 C12H17BBrNO2
2-Bromo-4-methylpyrimidine-5-boronic acid pinacol ester 2-Bromo-4-methylpyrimidine-5-boronic acid pinacol ester 2223051-83-8 C11H16BBrN2O2
2-Chloro-3-methyl-5-trifluoromethylphenylboronic acid pinacol ester 2-Chloro-3-methyl-5-trifluoromethylphenylboronic acid pinacol ester 2223011-27-4 C14H17BClF3O2
2-Chloro-4-(4-methylpiperidin-1-yl)phenylboronic acid pinacol ester 2-Chloro-4-(4-methylpiperidin-1-yl)phenylboronic acid pinacol ester 2223033-75-6 C18H27BClNO2
2-Chloro-5-cyano-4-cyclopropylphenylboronic acid pinacol ester 2-Chloro-5-cyano-4-cyclopropylphenylboronic acid pinacol ester 2223047-63-8 C16H19BClNO2
2-Cyano-4-(1H-pyrazol-1-yl)phenylboronic acid pinacol ester 2-Cyano-4-(1H-pyrazol-1-yl)phenylboronic acid pinacol ester 2223041-76-5 C16H18BN3O2
2-Cyano-4-(2-methylimidazol-1-yl)phenylboronic acid pinacol ester 2-Cyano-4-(2-methylimidazol-1-yl)phenylboronic acid pinacol ester 2223043-19-2 C17H20BN3O2
2-Cyano-4-(morpholino)phenylboronic acid pinacol ester 2-Cyano-4-(morpholino)phenylboronic acid pinacol ester 2223043-04-5 C17H23BN2O3
2-Cyano-4-(piperidino)phenylboronic acid pinacol ester 2-Cyano-4-(piperidino)phenylboronic acid pinacol ester 2223033-12-1 C18H25BN2O2
2-Fluoro-4-(4-methylpiperidin-1-yl)phenylboronic acid pinacol ester 2-Fluoro-4-(4-methylpiperidin-1-yl)phenylboronic acid pinacol ester 2223055-05-6 C18H27BFNO2
2-Fluoro-4-bromo-5-cyclopropylphenylboronic acid pinacol ester 2-Fluoro-4-bromo-5-cyclopropylphenylboronic acid pinacol ester 2223051-29-2 C15H19BBrFO2
2-Fluoro-6-chloropyridine-4-boronic acid 2-Fluoro-6-chloropyridine-4-boronic acid 2225176-58-7 C5H4BClFNO2
2-isopropyl-1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2-isopropyl-1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole 2223040-44-4 C13H23BN2O2
2-Methyl-4-cyano-6-cyclopropylphenylboronic acid pinacol ester 2-Methyl-4-cyano-6-cyclopropylphenylboronic acid pinacol ester 2223037-64-5 C17H22BNO2
2-Methyl-5-(iso-propyl)thiophene-3-boronic acid pinacol ester 2-Methyl-5-(iso-propyl)thiophene-3-boronic acid pinacol ester 2223029-38-5 C14H23BO2S
2-Methyl-5-(morpholino)thiophene-3-boronic acid pinacol ester 2-Methyl-5-(morpholino)thiophene-3-boronic acid pinacol ester 2223011-22-9 C15H24BNO3S
2-Methyl-5-ethylfuran-3-boronic acid pinacol ester 2-Methyl-5-ethylfuran-3-boronic acid pinacol ester 2223039-54-9 C13H21BO3
PIPES sesquisodium salt PIPES sesquisodium salt 100037-69-2 C16H33N4Na3O12S4
2-(5-chloro-2-cyclopropylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(5-chloro-2-cyclopropylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 1486485-28-2 C15H20BClO2
N-[(11bS)-2,6-di-1-naphthalenyl-4-oxidodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoro-Methanesulfonamide N-[(11bS)-2,6-di-1-naphthalenyl-4-oxidodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoro-Methanesulfonamide 1226907-33-0 C41H25F3NO5PS
Calcium 3-hydroxybutyrate Calcium 3-hydroxybutyrate 51899-07-1 C8H14CaO6
Alkyl(68%C12,32%C14) dimethylbenzylammonium chloride Alkyl(68%C12,32%C14) dimethylbenzylammonium chloride
Azido-PEG3-(CH2)3OH Azido-PEG3-(CH2)3OH 1807512-36-2 C9H19N3O4
(4-Fluorobenzofuran-2-yl)boronic acid (4-Fluorobenzofuran-2-yl)boronic acid 1423791-86-9 C8H6BFO3
magnesium 3-hydroxybutyrate magnesium 3-hydroxybutyrate 163452-00-4 C4H10MgO3
2-phenylpyridin-4-ylboronic acid 2-phenylpyridin-4-ylboronic acid 1146614-46-1 C11H10BNO2
3-SULFOPROPYLDIMETHYL-3-METHACRYLAMIDOPROPYLAMMONIUM INNER SALT 3-SULFOPROPYLDIMETHYL-3-METHACRYLAMIDOPROPYLAMMONIUM INNER SALT 5205-95-8 C12H24N2O4S
5-(2-Methoxyphenyl)furan-2-boronic acid pinacol ester 5-(2-Methoxyphenyl)furan-2-boronic acid pinacol ester 1402173-04-9 C17H21BO4
3,5-Difluoro-4-methylphenylboronic acid 3,5-Difluoro-4-methylphenylboronic acid 1621332-09-9 C7H7BF2O2
1-(4-bromophenyl)-5-methyl-1,2,3-triazole 1-(4-bromophenyl)-5-methyl-1,2,3-triazole 20177-64-4 C9H8BrN3
1-BROMO-3-CHLOROPROPANE-D6 1-BROMO-3-CHLOROPROPANE-D6 1173018-46-6 C3BrClD6
2-Propenoic acid, 2-methyl-, 1-ethoxyethyl ester 2-Propenoic acid, 2-methyl-, 1-ethoxyethyl ester 51920-52-6 C8H14O3
7,10-Bis(4-(diphenylamino)phenyl)-2,3 -dicyanopyrazino phenanthrene 7,10-Bis(4-(diphenylamino)phenyl)-2,3 -dicyanopyrazino phenanthrene 1803287-94-6 C54H34N6
(4-((2-Ethoxy-2-oxoethyl)carbamoyl)-phenyl)boronic acid (4-((2-Ethoxy-2-oxoethyl)carbamoyl)-phenyl)boronic acid 1072946-08-7 C11H14BNO5
4,4,5,5-Tetramethyl-2-(4-phenylfuran-2-yl)-1,3,2-dioxaborolane 4,4,5,5-Tetramethyl-2-(4-phenylfuran-2-yl)-1,3,2-dioxaborolane 1242517-60-7 C16H19BO3
4,4,5,5-Tetramethyl-2-(tetrahydro-2H-pyran-3-yl)-1,3,2-dioxaborolane 4,4,5,5-Tetramethyl-2-(tetrahydro-2H-pyran-3-yl)-1,3,2-dioxaborolane 1391850-39-7 C11H21BO3
6-tert-butyl-4-hydroxy-2H-pyran-2-one 6-tert-butyl-4-hydroxy-2H-pyran-2-one 857248-84-1 C9H12O3
2-Propenoic acid,2-methyl-,4-boronophenyl ester 2-Propenoic acid,2-methyl-,4-boronophenyl ester 108305-42-6 C10H11BO4
3-Mthoxy-4-(trifluoromethoxy)phenylboronic acid 3-Mthoxy-4-(trifluoromethoxy)phenylboronic acid 2096329-73-4 C8H8BF3O4
4-aminobenzonitrile-2,3,5,6-d4 4-aminobenzonitrile-2,3,5,6-d4 1331866-32-0 C7H6N2
[2,4'-bipyridin]-5-ylboronic acid [2,4'-bipyridin]-5-ylboronic acid 1264516-00-8 C10H9BN2O2
R-(+)-LISURIDE HYDROGEN MALEATE R-(+)-LISURIDE HYDROGEN MALEATE 19875-60-6 C24H30N4O5
METHYLAMINE-D2 DEUTERIOCHLORIDE METHYLAMINE-D2 DEUTERIOCHLORIDE 14779-52-3 CH3D2N.ClD
2-BROMOPYRIDINE-D4 2-BROMOPYRIDINE-D4 70766-71-1 C5BrD4N
4-Ethylpyridine-3-boronic Acid Pinacol Ester 4-Ethylpyridine-3-boronic Acid Pinacol Ester 2096330-85-5 C13H20BNO2
4,6-Dimethylpyridine-3-boronic Acid Pinacol Ester 4,6-Dimethylpyridine-3-boronic Acid Pinacol Ester 1622217-32-6 C13H20BNO2
2-Isopropylpyridin-3-ylboronic acid 2-Isopropylpyridin-3-ylboronic acid 2080377-86-0 C8H12BNO2
Trimethylolpropane tris(2-methyl-1-aziridinepropionate) Trimethylolpropane tris(2-methyl-1-aziridinepropionate) 64265-57-2 C24H41N3O6
3-(Cyclopropyl)-5-(cyclopentyl)phenylboronic acid pinacol ester 3-(Cyclopropyl)-5-(cyclopentyl)phenylboronic acid pinacol ester 2223048-59-5 C20H29BO2
3-(Cyclopropyl)-5-ethylphenylboronic acid pinacol ester 3-(Cyclopropyl)-5-ethylphenylboronic acid pinacol ester 2223047-65-0 C17H25BO2
3-(iso-Propoxy-d7)bromobenzene 3-(iso-Propoxy-d7)bromobenzene 1185316-33-9 C9H11BrO
3-(iso-Propyl-d7)bromobenzene 3-(iso-Propyl-d7)bromobenzene 1185314-00-4 C9H4BrD7
3,5-(Dimethyl-d6)bromobenzene 3,5-(Dimethyl-d6)bromobenzene 1185315-30-3 C8H9Br
6-METHYLPYRIDINE-2-BORONIC ACID PINACOL ESTER 6-METHYLPYRIDINE-2-BORONIC ACID PINACOL ESTER 1096689-44-9 C12H18BNO2
(2-Methoxy-5-ethyl-d8)-thiazole-4-boronic acid pinacol ester (2-Methoxy-5-ethyl-d8)-thiazole-4-boronic acid pinacol ester 2223052-73-9 C12H20BNO3S
(2-Methyl-5-ethyl-d8)-thiazole-4-boronic acid pinacol ester (2-Methyl-5-ethyl-d8)-thiazole-4-boronic acid pinacol ester 2223032-48-0 C12H20BNO2S
(5-Methyl-2-dimethylamino-d9)-thiazole-4-boronic acid pinacol ester (5-Methyl-2-dimethylamino-d9)-thiazole-4-boronic acid pinacol ester 2223052-81-9 C12H21BN2O2S
[2-Ethoxy-4-(iso-propyl)-d12]-thiazole-5-boronic acid pinacol ester [2-Ethoxy-4-(iso-propyl)-d12]-thiazole-5-boronic acid pinacol ester 2223031-41-0 C14H14BD12NO4S
[2-Methoxy-4-(n-propyl)-d10]-thiazole-5-boronic acid pinacol ester [2-Methoxy-4-(n-propyl)-d10]-thiazole-5-boronic acid pinacol ester 2223040-92-2 C13H22BNO3S
[2-Methyl-5-(sec-butyl)-d12]-thiophene-3-boronic acid pinacol ester [2-Methyl-5-(sec-butyl)-d12]-thiophene-3-boronic acid pinacol ester 2223006-94-6 C15H25BO2S
[5-(iso-Butyl)thiophene-d11]-2-boronic acid pinacol ester [5-(iso-Butyl)thiophene-d11]-2-boronic acid pinacol ester 2223044-15-1 C14H15BD11O3S
1-(sec-Butyl-d9)-pyrrole-3-boronic acid pinacol ester 1-(sec-Butyl-d9)-pyrrole-3-boronic acid pinacol ester 2223006-15-1 C14H24BNO2
1-Chloro-4-(iso-propoxy-d7)-phthalazine 1-Chloro-4-(iso-propoxy-d7)-phthalazine 1185307-04-3 C11H4ClD7N2O
2-(n-Propyl-d7)-thiazole-5-boronic acid pinacol ester 2-(n-Propyl-d7)-thiazole-5-boronic acid pinacol ester 2223053-83-4 C12H20BNO2S
2-(Pyrrolidinothiophene-d10)-3-boronic acid pinacol ester 2-(Pyrrolidinothiophene-d10)-3-boronic acid pinacol ester 2223052-46-6 C14H22BNO2S
2-[(tert-Butyl)thiophene-d11]-3-boronic acid pinacol ester 2-[(tert-Butyl)thiophene-d11]-3-boronic acid pinacol ester 2223055-89-6 C14H23BO2S
2-Bromo-4-(n-propyl)thiophene-d9 2-Bromo-4-(n-propyl)thiophene-d9 1643564-11-7 C7H9BrS
2-Bromo-5-(sec-butyl)thiophene-d11 2-Bromo-5-(sec-butyl)thiophene-d11 1643576-25-3 C8BrD11S
2-Chloro-4-(methyl-d3)-1,3,5-triazine 2-Chloro-4-(methyl-d3)-1,3,5-triazine 1643539-02-9 C4H4ClN3
3-Bromo-[2-methyl-5-(sec-butyl)-d12]-furan 3-Bromo-[2-methyl-5-(sec-butyl)-d12]-furan 1643576-37-7 C9H13BrO
3-Bromo-[2-methyl-5-(tert-butyl)-d12]-thiophene 3-Bromo-[2-methyl-5-(tert-butyl)-d12]-thiophene 1643563-95-4 C9H13BrS
3-Bromo-1-(iso-propyl-d7)-pyrrole 3-Bromo-1-(iso-propyl-d7)-pyrrole 1643576-95-7 C7H10BrN
3-Bromo-2,5-(dimethyl-d6)-thiophene 3-Bromo-2,5-(dimethyl-d6)-thiophene 1643537-94-3 C6H7BrS
3-Bromo-4-(iso-propyl-d7)-furan 3-Bromo-4-(iso-propyl-d7)-furan 1185314-66-2 C7H9BrO
3-Chloro-4-(iso-propyl-d7)-1,2,5-thiadiazole 3-Chloro-4-(iso-propyl-d7)-1,2,5-thiadiazole 1185307-51-0 C5H7ClN2S
4,5-Dibromo-2-(diethylamino-d10)-thiazole 4,5-Dibromo-2-(diethylamino-d10)-thiazole 1643576-08-2 C7H10Br2N2S
4,5-Dibromo-2-(iso-propyl-d7)-thiazole 4,5-Dibromo-2-(iso-propyl-d7)-thiazole 1643539-28-9 C6Br2D7NS
4-Amino-2-(ethyl-d5)-thiazole 4-Amino-2-(ethyl-d5)-thiazole 1185313-87-4 C5H8N2S
4-Bromo-[2-(iso-propoxy)-5-methyl-d10]-thiazole 4-Bromo-[2-(iso-propoxy)-5-methyl-d10]-thiazole 1643538-65-1 C7H10BrNOS
4-Bromo-1-(tert-butyl-d9)-1,2,3-triazole 4-Bromo-1-(tert-butyl-d9)-1,2,3-triazole 1643542-28-2 C6H10BrN3
4-Bromo-1H-pyrazole-3,5-d2 4-Bromo-1H-pyrazole-3,5-d2 95472-32-5 C3HBrD2N2
4-Bromo-2-(diethylamino)thiazole-d11 4-Bromo-2-(diethylamino)thiazole-d11 1643579-66-1 C7BrD11N2S
4-Bromo-2-(ethyl-d5)-thiazole 4-Bromo-2-(ethyl-d5)-thiazole 1185306-64-2 C5H6BrNS
4-Bromo-2-(methoxy-d3)-pyridine 4-Bromo-2-(methoxy-d3)-pyridine 1185311-74-3 C6H6BrNO
4-Bromo-2-(sec-butyl)thiazole-d10 4-Bromo-2-(sec-butyl)thiazole-d10 1643576-04-8 C7H10BrNS
4-Bromo-2-ethylthiazole-d6 4-Bromo-2-ethylthiazole-d6 1643564-64-0 C5H6BrNS
4-Bromo-3,5-(dimethyl-d6)-isoxazole 4-Bromo-3,5-(dimethyl-d6)-isoxazole 1185306-70-0 C5H6BrNO
5-(1-Hydroxy-1-methylethyl-d6)-furan-2-boronic acid pinacol ester 5-(1-Hydroxy-1-methylethyl-d6)-furan-2-boronic acid pinacol ester 2223033-32-5 C13H21BO4
5-Bromo-(2-ethoxy-4-ethyl-d10)-thiazole 5-Bromo-(2-ethoxy-4-ethyl-d10)-thiazole 1643575-54-5 C7H10BrNOS
5-Bromo-[2-ethoxy-4-(iso-propyl)-d12]-thiazole 5-Bromo-[2-ethoxy-4-(iso-propyl)-d12]-thiazole 1643539-04-1 C8H12BrNOS
5-Bromo-[4-(n-propyl)-2-dimethylamino-d13)-thiazole 5-Bromo-[4-(n-propyl)-2-dimethylamino-d13)-thiazole 1643563-46-5 C8H13BrN2S
5-Bromo-2-(ethoxy-d5)-thiazole 5-Bromo-2-(ethoxy-d5)-thiazole 1643543-82-1 C5HBrD5NOS
5-Bromo-2-(methyl-d3)-thiazole 5-Bromo-2-(methyl-d3)-thiazole 1185316-21-5 C4H4BrNS
5-Bromo-2-(morpholino-d8)-thiazole 5-Bromo-2-(morpholino-d8)-thiazole 1643542-95-3 C7H9BrN2OS
5-Bromo-2,4-(diethyl-d10)-thiazole 5-Bromo-2,4-(diethyl-d10)-thiazole 1643538-85-5 C7BrD10NS
6-Bromo-2-(methyl-d3)-benzothiazole 6-Bromo-2-(methyl-d3)-benzothiazole 1185306-75-5 C8H6BrNS
19-(tert-Butoxy)-19-oxononadecanoic acid 19-(tert-Butoxy)-19-oxononadecanoic acid 1643852-37-2 C23H44O4
3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-boronic Acid Pinacol Ester 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-8-boronic Acid Pinacol Ester 1551418-99-5 C14H18BNO4
3-(4-BORONOPHENYL)CYCLOBUTANONE 3-(4-BORONOPHENYL)CYCLOBUTANONE 254893-03-3 C10H11BO3
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.
普陀区| 襄汾县| 鹤壁市| 凌云县| 鲁山县| 新绛县| 台州市| 通辽市| 旅游| 赫章县| 景泰县| 平潭县| 东乌珠穆沁旗| 泾源县| 贡嘎县| 子长县| 济阳县| 全椒县| 银川市| 驻马店市| 汉中市| 禹城市| 通道| 临清市| 中江县| 平泉县| 茶陵县| 繁昌县| 衡东县| 宜州市| 峨山| 五常市| 吉安市| 新兴县| 天津市| 龙游县| 大化| 营山县| 晴隆县| 怀宁县| 本溪|