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
4-[4-(Trifluoromethyl)phenyl]thiazole-2-thiol 4-[4-(Trifluoromethyl)phenyl]thiazole-2-thiol 936850-88-3 C10H6F3NS2
3-(Dimethylamino)-1-propanethiol 3-(Dimethylamino)-1-propanethiol 42302-17-0 C5H13NS
N-(4-TRIFLUOROMETHYL-PHENYL)-GUANIDINE N-(4-TRIFLUOROMETHYL-PHENYL)-GUANIDINE 130066-24-9 C8H8F3N3
MPEG-2000-DSPE MPEG-2000-DSPE 147867-65-0 C45H87NNaO11P
2-[2-(AMINOMETHYL)PHENYLTHIO]BENZYL ALCOHOL 2-[2-(AMINOMETHYL)PHENYLTHIO]BENZYL ALCOHOL 79467-22-4 C14H15NOS
4-METHOXYBENZALDEHYDE-3-SULFONIC ACID SODIUM SALT 4-METHOXYBENZALDEHYDE-3-SULFONIC ACID SODIUM SALT 5393-59-9 C8H7NaO5S
BORANE-DIETHYLAMINE BORANE-DIETHYLAMINE 2670-68-0 C4H14BN
L-TarB-NO2,  2-(3-Nitrophenyl)-1,3,2-dioxaborolane-4R,5R-dicarboxylic  acid L-TarB-NO2, 2-(3-Nitrophenyl)-1,3,2-dioxaborolane-4R,5R-dicarboxylic acid 467443-01-2 C10H8BNO8
Bis(hexamethyldisilazido)magnesium,  Mg(HMDS)2 Bis(hexamethyldisilazido)magnesium, Mg(HMDS)2 857367-60-3 C12H36MgN2Si4
3-O-TOLYL-PROPIONALDEHYDE 3-O-TOLYL-PROPIONALDEHYDE 19564-40-0 C10H12O
BORANE-D3 BORANE-D3 13763-62-7 BD3
4-CHLORO-3-NITROBENZENESULFONIC ACID, SODIUM SALT 4-CHLORO-3-NITROBENZENESULFONIC ACID, SODIUM SALT 17691-19-9 C6H3ClNNaO5S
HEXAMETHYLGUANIDINIUM CHLORIDE HEXAMETHYLGUANIDINIUM CHLORIDE 30388-20-6 C7H18ClN3
5-CHLORO-1H-INDOLE-3-CARBOXAMIDINE 5-CHLORO-1H-INDOLE-3-CARBOXAMIDINE C9H8ClN3
13-Azido-2,5,8,11-tetraoxa-tridecane 13-Azido-2,5,8,11-tetraoxa-tridecane 606130-90-9 C9H19N3O4
6-CHLORO-1H-INDOLE-3-CARBOXAMIDINE 6-CHLORO-1H-INDOLE-3-CARBOXAMIDINE C9H8ClN3
tribendimidine tribendimidine 115103-15-6 C28H32N6
4-Formyl-1,3-benzenedisulfonicacidsodiumsalt 4-Formyl-1,3-benzenedisulfonicacidsodiumsalt 119557-95-8 C7H4O7S2*2Na
1-BUTYL-3-METHYLIMIDAZOLIUM ACETATE 1-BUTYL-3-METHYLIMIDAZOLIUM ACETATE 284049-75-8 C10H18N2O2
3(AND 4)-(VINYLBENZYL)-2-CHLOROETHYL SULFONE 3(AND 4)-(VINYLBENZYL)-2-CHLOROETHYL SULFONE C11H13ClO2S
(2 3-DIFLUOROPHENYL)THIOUREA  97 (2 3-DIFLUOROPHENYL)THIOUREA 97 572889-25-9 C7H6F2N2S
(S)-1-{(R)-2-[BIS(4-METHOXY-3,5-DIMETHYLPHENYL)PHOSPHINO]FERROCENYL}ETHYLDICYCLO (S)-1-{(R)-2-[BIS(4-METHOXY-3,5-DIMETHYLPHENYL)PHOSPHINO]FERROCENYL}ETHYLDICYCLO 849923-88-2 C42H50FeO2P2
(R)-1-{(S)-2-[DI(2-FURYL)PHOSPHINO]FERROCENYL}ETHYLDI-TERT.-BUTYLPHOSPHINE (R)-1-{(S)-2-[DI(2-FURYL)PHOSPHINO]FERROCENYL}ETHYLDI-TERT.-BUTYLPHOSPHINE 849924-41-0 C28H30FeO2P2
(S)-1-[(R)-2-(DI-TERT.-BUTYLPHOSPHINO)FERROCENYL]ETHYLBIS(2-METHYLPHENYL)PHOSPHI (S)-1-[(R)-2-(DI-TERT.-BUTYLPHOSPHINO)FERROCENYL]ETHYLBIS(2-METHYLPHENYL)PHOSPHI 849924-77-2 C34H38FeP2
4-ACRYLAMIDOBENZO-18-CROWN-6, 98 4-ACRYLAMIDOBENZO-18-CROWN-6, 98 68865-32-7 C19H27NO7
N-(2-HYDROXYETHYL)ETHYLENEDIAMINETRIACETIC ACID, TRISODIUM SALT HYDRATE, 85 N-(2-HYDROXYETHYL)ETHYLENEDIAMINETRIACETIC ACID, TRISODIUM SALT HYDRATE, 85 207386-87-6 C10H17N2Na3O8
1 2-DIME-3-PROPYLIMIDAZOLIUM BIS(TRIFLUO 1 2-DIME-3-PROPYLIMIDAZOLIUM BIS(TRIFLUO 169051-76-7 C8H15N2.C2F6NO4S2
(S)-1-{(S)-2-[2-(DIPHENYLPHOSPHINO)PHENYL]-FERROCENYL}ETHYLDICYCLOHEXYLPHOSPHINE (S)-1-{(S)-2-[2-(DIPHENYLPHOSPHINO)PHENYL]-FERROCENYL}ETHYLDICYCLOHEXYLPHOSPHINE 849925-19-5 C37H43P2.C5H5.Fe
5-(BROMOMETHYL)-2,3-DIHYDRO-1,4-BENZODIOXINE,97% 5-(BROMOMETHYL)-2,3-DIHYDRO-1,4-BENZODIOXINE,97% 214894-89-0 C9H9BrO2
RAC ALBUTEROL-D9 RAC ALBUTEROL-D9 1173021-73-2 C13H12D9NO3
3-(DIBUTYLAMINO)PROPIONITRILE 3-(DIBUTYLAMINO)PROPIONITRILE 25726-99-2 C11H22N2
(+)-1,2-BIS((2R,5R)-2,5-DIMETHYLPHOSPHOLANO)ETHANE (+)-1,2-BIS((2R,5R)-2,5-DIMETHYLPHOSPHOLANO)ETHANE 129648-07-3 C14H28P2
2-CHLOROBENZYL CHLOROFORMATE 2-CHLOROBENZYL CHLOROFORMATE 39545-31-8 C8H6Cl2O2
6-METHOXY-1-NAPHTHOIC ACID 6-METHOXY-1-NAPHTHOIC ACID 36112-61-5 C12H10O3
1-[3,5-BIS(TRIFLUOROMETHYL)PHENYL]BIGUANIDE HYDROCHLORIDE 1-[3,5-BIS(TRIFLUOROMETHYL)PHENYL]BIGUANIDE HYDROCHLORIDE 36068-40-3 C10H9F6N5
INDOPHENOL ACETATE INDOPHENOL ACETATE 7761-80-0 C14H11NO3
2-ETHYL-D5-2-HYDROXYBUTYRIC-3,3,4,4,4-D5 ACID 2-ETHYL-D5-2-HYDROXYBUTYRIC-3,3,4,4,4-D5 ACID 358731-27-8 C6H2D10O3
2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE 2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE 126-54-5 C7H12O4
CHLOROMETHYLPHOSPHONIC ACID CHLOROMETHYLPHOSPHONIC ACID 2565-58-4 CH4ClO3P
1,4-DIBROMOBENZENE-D4 1,4-DIBROMOBENZENE-D4 4165-56-4 C6Br2D4
2-HYDROXY-3-METHOXYPHENYLACETONITRILE 2-HYDROXY-3-METHOXYPHENYLACETONITRILE 42973-56-8 C9H9NO2
(+)-CHLOROMETHYL MENTHYL ETHER (+)-CHLOROMETHYL MENTHYL ETHER 103128-76-3 C11H21ClO
hexahydro-3,6-methanophthalic anhydride hexahydro-3,6-methanophthalic anhydride 6004-79-1 C9H10O3
stilbamidine isetionate stilbamidine isetionate 140-59-0 C16H16N4.2C2H6O4S
subathizone subathizone 121-55-1 C10H13N3O2S2
sodium 2-[methyl(1-oxohexadecyl)amino]ethanesulphonate sodium 2-[methyl(1-oxohexadecyl)amino]ethanesulphonate 3737-55-1 C19H38NNaO4S
tris[6,6,7,7,8,8,8-heptafluoro-2,2-di[(2H3)methyl](1,1,1-2H3)octane-3,5-dionato-O,O']praseodymium tris[6,6,7,7,8,8,8-heptafluoro-2,2-di[(2H3)methyl](1,1,1-2H3)octane-3,5-dionato-O,O']praseodymium 42942-19-8 C30H3D27F21O6Pr
(R)-(-)-Tetrahydropapaverine hydrochloride (R)-(-)-Tetrahydropapaverine hydrochloride
TRIHEXYLTETRADECYLPHOSPHONIUM BROMIDE TRIHEXYLTETRADECYLPHOSPHONIUM BROMIDE 654057-97-3 C32H68BrP
S-SEC-BUTYL CHLOROTHIOFORMATE, 96% S-SEC-BUTYL CHLOROTHIOFORMATE, 96% 52805-29-5 C5H9ClOS
2-BENZYLOXY-BENZAMIDE OXIME
2-BENZYLOXY-BENZAMIDE OXIME 936497-77-7 C14H14N2O2
PES-C PES-C
(R)-(+)-2,2'-Bis[di(3,4,5-trimethoxyphenyl)phosphino]-6,6'-dimethoxy-1,1'-biphenyl,min.97% (R)-(+)-2,2'-Bis[di(3,4,5-trimethoxyphenyl)phosphino]-6,6'-dimethoxy-1,1'-biphenyl,min.97% 256390-47-3 C50H56O14P2
Sodium 5-sulfoisatin. Sodium 5-sulfoisatin. 80789-74-8 C8H4NO5S.Na
TETRADODECYLAMMONIUM CHLORIDE TETRADODECYLAMMONIUM CHLORIDE 82944-72-7 C48H100ClN
BENZO(G,H,I)PERYLENE D12 BENZO(G,H,I)PERYLENE D12 93951-66-7 C22D12
N-TETRACOSANE-D50 N-TETRACOSANE-D50 16416-32-3 C24D50
Benzamide, 3-methoxy-2-nitro- Benzamide, 3-methoxy-2-nitro- 99595-85-4 C8H8N2O4
(Trifluoromethylsulfonyloxy) copper(I) (Trifluoromethylsulfonyloxy) copper(I) 42152-44-3 CHCuF3O3S
ZONIPORIDE ZONIPORIDE 241800-98-6 C17H16N6O
3,6,9,12,15-Pentaoxahexadecane-1-thiol 3,6,9,12,15-Pentaoxahexadecane-1-thiol 524030-00-0 C11H24O5S
2-[2-(2-Azidoethoxy)ethoxy]ethanamine 2-[2-(2-Azidoethoxy)ethoxy]ethanamine 166388-57-4 C6H14N4O2
Sodium bromomethylsulfonate Sodium bromomethylsulfonate 34239-78-6 CH2BrO3S.Na
POLYSTYRENE SULFONATE, LITHIUM SALT POLYSTYRENE SULFONATE, LITHIUM SALT 9016-91-5 (C8H8O3S)x.xLi
SBE7-beta-CD SBE7-beta-CD 194615-04-8
EPICHLOROHYDRIN-D5 EPICHLOROHYDRIN-D5 69533-54-6 C3ClD5O
S(+)-2-[2-(DIPHENYLPHOSPHINO)PHENYL]-4-PHENYL-2-OXAZOLINE S(+)-2-[2-(DIPHENYLPHOSPHINO)PHENYL]-4-PHENYL-2-OXAZOLINE 148461-15-8 C27H22NOP
3-p-Terphenylboronic Acid 3-p-Terphenylboronic Acid C18H15BO2
1,2-Diacetylbenzene 1,2-Diacetylbenzene 704-00-7 C10H10O2
Benzaldehyde, 4,5-diMethoxy-2-nitro-, phenylhydrazone Benzaldehyde, 4,5-diMethoxy-2-nitro-, phenylhydrazone 70032-31-4 C15H15N3O4
1-(2-BROMOETHOXY)-4-METHOXYBENZENE 1-(2-BROMOETHOXY)-4-METHOXYBENZENE 22921-76-2 C9H11BrO2
5-(o-Tolyl)-1,3,4-oxadiazole-2-thiol, 96% 5-(o-Tolyl)-1,3,4-oxadiazole-2-thiol, 96% 2503-66-4 C9H8N2OS
1,3-Bis(2,6-diisopropylphenyl)-2,2-difluoro-2,3-dihydro-1H-imidazole 1,3-Bis(2,6-diisopropylphenyl)-2,2-difluoro-2,3-dihydro-1H-imidazole 1314657-40-3 C27H36F2N2
4-AMINOMETHYL-BENZAMIDE 4-AMINOMETHYL-BENZAMIDE 369-53-9 C8H10N2O
TETRAOCTYLAMMONIUM HYDROXIDE TETRAOCTYLAMMONIUM HYDROXIDE 17756-58-0 C32H69NO
Sodium 2-chloro-5-nitrobenzenesulfonate Sodium 2-chloro-5-nitrobenzenesulfonate 946-30-5 C6H3ClNNaO5S
4-CHLORO-N-HYDROXY-2-METHYL-BENZAMIDINE 4-CHLORO-N-HYDROXY-2-METHYL-BENZAMIDINE 721450-66-4 C8H9ClN2O
Guanidine acetate Guanidine acetate 593-87-3 C3H9N3O2
2,4-DIMETHYLGLUTARIC ACID 2,4-DIMETHYLGLUTARIC ACID 2121-67-7 C7H12O4
3,3'-DIAMINO-4,4'-DICHLORODIPHENYL SULFONE 3,3'-DIAMINO-4,4'-DICHLORODIPHENYL SULFONE 40179-07-5 C12H10Cl2N2O2S
CIS-5,8,11,14,17-EICOSAPENTAENOIC ACID METHYL ESTER CIS-5,8,11,14,17-EICOSAPENTAENOIC ACID METHYL ESTER 2734-47-6 C21H32O2
L-ALPHA-PHOSPHATIDYLINOSITOL L-ALPHA-PHOSPHATIDYLINOSITOL 97281-52-2 C45H87O13P
ISOPULEGYL ACETATE ISOPULEGYL ACETATE 89-49-6 C12H20O2
1-BENZYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE 1-BENZYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE 500996-04-3 C11H13BF4N2
2,2'-OXYDIACETYL CHLORIDE 2,2'-OXYDIACETYL CHLORIDE 21062-20-4 C4H4Cl2O3
3,5-DIBROMO-2-METHOXYBENZALDEHYDE 3,5-DIBROMO-2-METHOXYBENZALDEHYDE 61657-65-6 C8H6Br2O2
3-Cyclohexylpropionyl chloride 3-Cyclohexylpropionyl chloride 39098-75-4 C9H15ClO
FARNESENE FARNESENE 502-61-4 C15H24
Neodecanoyl chloride Neodecanoyl chloride 40292-82-8 C10H19ClO
4-Nitro-2-(trifluoromethyl)benzoyl chloride 4-Nitro-2-(trifluoromethyl)benzoyl chloride 98187-15-6 C8H3ClF3NO3
PERFLUOROBUTANESULFONIC ACID TETRABUTYLAMMONIUM SALT PERFLUOROBUTANESULFONIC ACID TETRABUTYLAMMONIUM SALT 108427-52-7 C20H36F9NO3S
2,2-DIFLUORO-BENZO[1,3]DIOXOLE-5,6-DIAMINE 2,2-DIFLUORO-BENZO[1,3]DIOXOLE-5,6-DIAMINE 1744-12-3 C7H6F2N2O2
2-(THIEN-2-YL)ETHYL ISOCYANATE 2-(THIEN-2-YL)ETHYL ISOCYANATE 58749-51-2 C7H7NOS
N-NITROSODIMETHYL-D6-AMINE N-NITROSODIMETHYL-D6-AMINE 17829-05-9 C2D6N2O
VINYL FLUORIDE VINYL FLUORIDE 75-02-5 C2H3F
(E)-1-Bromo-6,6-dimethyl-2-hepten-4-yne (E)-1-Bromo-6,6-dimethyl-2-hepten-4-yne 78629-21-7 C9H13Br
ACETALDEHYDE-D4 ACETALDEHYDE-D4 1632-89-9 C2D4O
3-METHOXY-2-PYRIDINEBORONIC ACID 3-METHOXY-2-PYRIDINEBORONIC ACID 500707-34-6 C6H8BNO3
(+/-)-JASMONIC ACID-9,10-D2 (+/-)-JASMONIC ACID-9,10-D2 183948-71-2 C12H16D2O3
3-METHOXYPHENETHYL BROMIDE 3-METHOXYPHENETHYL BROMIDE 2146-61-4 C9H11BrO
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.