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

Silane reagent

Silane reagent refers to a class of organic silicon monomer or small molecule compounds in organic synthesis or analysis or for the protection of organic change in the active group. After the reaction of the silane groups falling restitution. There are more than 500 species, including:
(1) The trimethylsilyl group the SBA monofunctional, e.g. trimethylchlorosilane, bis (trimethylsilyl) amine and the like.
(2) the SBA monoenergetic sterically hindered, such as tert-butyldimethylsilyl chloride, triisopropyl chloro silane.
(3) the SBA difunctional sterically hindered, such as dimethyl acetoxy silane, di-t-butyl dichloro silane.
(4) Other protective agent, such as trimethyl silane-hydroxyethyl, hydroxyethyl methyl diphenyl silane.

Silane reagent can be used to analyze the field of organic synthesis (eg pharmaceutical synthesis). Modified drugs may also be used, such as to make it oil-soluble or loss of bitterness and the like.

Refers to the effect of silylation silyl group introduced into the molecule, usually an active hydrogen-substituted (eg: hydroxyl -OH, carboxyl groups -COOH, -NH2 in an amino group, a mercapto group -SH, phosphate). After the active hydrogen group substituted with a silane reducing polar compounds, to reduce the hydrogen bondage, silylated derivative thus formed is more volatile; Meanwhile, due to the reduced number of reactive sites of the active hydrogen-containing, but also stability of the compound can be strengthened. Silane compounds polar weakened, the measured capacity enhancement, improved thermal stability. Silylating agent in GC analysis uses a great many considered to be non-volatile or thermally unstable at 200-300 ℃ hydroxy or amino compounds successfully conducted chromatography after silylation.

It is precisely because the silane reagent to active hydrogen sensitive, reactive therewith happen, so the same silylating agent is very sensitive to moisture, water in the environment itself decomposition failure. Usually mentioned silylating agent, are sealed in nitrogen. Nitrogen must be pre-dried to remove water. After access to the silylating agent, again before the seal must charge into nitrogen. So that you can get rid of the air, to avoid the seal into the air so that the period of contact with moisture in the air with the silylating agent. Nitrogen filling method Proceed as follows: Connect a nitrogen cylinder with a Teflon tube at one end, connected at one end Pasteur pipette. The straw into his head to be filled with nitrogen silane reagent bottle from the reagent liquid silane of about 2 ~ 3cm. Open the nitrogen switch, so that nitrogen slowly into the vial until it has been filled with nitrogen, silane reagent bottle of white space. Removed the straw and immediately sealed tight bottle, close nitrogen.

Trimethylsilyl imidazole silane is strongest hydroxy silylating agent; quickly, smoothly and carboxyl groups react with hydroxyl groups. Does not react with amines or amides, it can be used to prepare both a hydroxy and an amino derivative containing multiple compounds. In the presence of a small amount of water it can be used silane sugar; when you need to analyze the sugar syrup as the sugar is ideal for silylation. Derivatives can not be hindered and the most serious impediment to steroid hydroxyl groups.

Click on the specific product, view the latest prices of the products, information, serving information
Structure Chemical Name CAS MF
BUTENYLMETHYLDICHLOROSILANE BUTENYLMETHYLDICHLOROSILANE 15983-86-5 C5H10Cl2Si
2-TRIMETHYLSILOXY-4-ALLYLOXYDIPHENYLKETONE 2-TRIMETHYLSILOXY-4-ALLYLOXYDIPHENYLKETONE 106359-89-1 C19H22O3Si
((CHLOROMETHYL)PHENYLETHYL)DIMETHYLCHLOROSILANE ((CHLOROMETHYL)PHENYLETHYL)DIMETHYLCHLOROSILANE 68092-71-7 C11H16Cl2Si
DIOPTASE DIOPTASE 15606-25-4 CuH4O4Si
PHENYLTRIFLUOROSILANE PHENYLTRIFLUOROSILANE 368-47-8 C6H5F3Si
HEXAVINYLDISILOXANE HEXAVINYLDISILOXANE 75144-60-4 C12H18OSi2
4-[2-(TRICHLOROSILYL)ETHYL]PYRIDINE 4-[2-(TRICHLOROSILYL)ETHYL]PYRIDINE 17082-70-1 C7H8Cl3NSi
Methoxytriethyleneoxypropyltrimethoxysilane Methoxytriethyleneoxypropyltrimethoxysilane 132388-45-5 C13H30O7Si
(3-GLYCIDOXYPROPYL)PENTAMETHYLDISILOXANE (3-GLYCIDOXYPROPYL)PENTAMETHYLDISILOXANE 18044-44-5 C11H26O3Si2
CHLOROMETHYLMETHYLDIISOPROPOXYSILANE CHLOROMETHYLMETHYLDIISOPROPOXYSILANE 2212-08-0 C8H19ClO2Si
3-CHLOROMETHYL HEPTAMETHYL TRISILOXANE 3-CHLOROMETHYL HEPTAMETHYL TRISILOXANE 17201-87-5 C8H23ClO2Si3
N-HEPTYLTRICHLOROSILANE N-HEPTYLTRICHLOROSILANE 871-41-0 C7H15Cl3Si
2-[2-(TRICHLOROSILYL)ETHYL]PYRIDINE 2-[2-(TRICHLOROSILYL)ETHYL]PYRIDINE 17082-69-8 C7H8Cl3NSi
3-[(dimethylvinylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyl-1,5-divinyltrisiloxane 3-[(dimethylvinylsilyl)oxy]-1,1,5,5-tetramethyl-3-phenyl-1,5-divinyltrisiloxane 60111-47-9 C18H32O3Si4
VINYLTETRAMETHYLDISILOXANE VINYLTETRAMETHYLDISILOXANE 55967-52-7 C6H16OSi2
1,4-Bis(vinyldimethylsilyl)benzene 1,4-Bis(vinyldimethylsilyl)benzene 4519-17-9 C14H22Si2
((CHLOROMETHYL)PHENYLETHYL)METHYLDICHLOROSILANE ((CHLOROMETHYL)PHENYLETHYL)METHYLDICHLOROSILANE 81870-64-6 C10H13Cl3Si
(4-TOLYLETHYL)METHYLDICHLOROSILANE (4-TOLYLETHYL)METHYLDICHLOROSILANE 63126-87-4 C10H14Cl2Si
ALLYL(TERT-BUTYLDIMETHY1)SILYLETHER ALLYL(TERT-BUTYLDIMETHY1)SILYLETHER 85807-85-8 C9H20OSi
2-(CARBOMETHOXY)ETHYLMETHYLDICHLOROSILANE 2-(CARBOMETHOXY)ETHYLMETHYLDICHLOROSILANE 18163-42-3 C5H10Cl2O2Si
(3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane (3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane 17980-29-9 C10H24O3Si2
3-ISOCYANATOPROPYLDIMETHYLCHLOROSILANE 3-ISOCYANATOPROPYLDIMETHYLCHLOROSILANE 17070-70-1 C6H12ClNOSi
TRIS(DIMETHYLAMINO)ETHYLSILANE TRIS(DIMETHYLAMINO)ETHYLSILANE 29489-57-4 C8H23N3Si
(PHENYLDIMETHYLSILYL)METHYL METHACRYLATE (PHENYLDIMETHYLSILYL)METHYL METHACRYLATE 18052-92-1 C13H18O2Si
SEPIOLITE SEPIOLITE 63800-37-3 H3MgO6Si2(-3)
1,3-BIS(3-CHLOROPROPYL)TETRAMETHYLDISILOXANE 1,3-BIS(3-CHLOROPROPYL)TETRAMETHYLDISILOXANE 18132-72-4 C10H24Cl2OSi2
1,1-DIMETHYLSILA-11-CROWN-4 1,1-DIMETHYLSILA-11-CROWN-4 18339-94-1 C8H18O4Si
1,3-BIS[(ACRYLOXYMETHYL)PHENETHYL]TETRAMETHYLDISILOXANE 1,3-BIS[(ACRYLOXYMETHYL)PHENETHYL]TETRAMETHYLDISILOXANE 140220-31-1 C28H38O5Si2
TRICHLOROMETHYLTRICHLOROSILANE TRICHLOROMETHYLTRICHLOROSILANE 17760-13-3 CCl6Si
METHACRYLOXYPROPYLTRIISOPROPOXYSILANE METHACRYLOXYPROPYLTRIISOPROPOXYSILANE 80750-05-6 C16H32O5Si
1,8-bis(trimethoxysily)octane 1,8-bis(trimethoxysily)octane 105566-68-5 C14H34O6Si2
3-phenylpropyltrichlorosilane 3-phenylpropyltrichlorosilane 13617-40-8 C9H11Cl3Si
NORBORNENYLETHYLTRICHLOROSILANE NORBORNENYLETHYLTRICHLOROSILANE 54076-73-2 C9H13Cl3Si
BIS(DICHLOROSILYL)METHANE BIS(DICHLOROSILYL)METHANE 18081-42-0 CH4Cl4Si2
3-CYANOPROPYLPHENYLDIMETHOXYSILANE 3-CYANOPROPYLPHENYLDIMETHOXYSILANE 204760-82-7 C12H17NO2Si
2-CYANOETHYLMETHYLDICHLOROSILANE 2-CYANOETHYLMETHYLDICHLOROSILANE 1071-21-2 C4H7Cl2NSi
CYANOPROPYL DIMETHYL DIMETHYLAMINO SILANE CYANOPROPYL DIMETHYL DIMETHYLAMINO SILANE 111873-32-6 C8H18N2Si
1-FLUORO-4-(TRIMETHYLSILYL)BENZENE 1-FLUORO-4-(TRIMETHYLSILYL)BENZENE 455-17-4 C9H13FSi
CYCLOTETRAMETHYLENEDIMETHYLSILANE CYCLOTETRAMETHYLENEDIMETHYLSILANE 1072-54-4 C6H14Si
1,5-DIVINYLHEXAMETHYLTRISILOXANE 1,5-DIVINYLHEXAMETHYLTRISILOXANE 136777-27-0 C10H24O2Si3
2-(TERT-BUTYLDIMETHYLSILYLOXY)CYCLOHEXA& 2-(TERT-BUTYLDIMETHYLSILYLOXY)CYCLOHEXA& 74173-08-3 C12H24O2Si
DI-T-BUTYLMETHYLCHLOROSILANE DI-T-BUTYLMETHYLCHLOROSILANE 70892-81-8 C9H21ClSi
PYROPHYLLITE PYROPHYLLITE 12269-78-2 AlH5O3Si
PHENYLDIETHOXYSILANE PHENYLDIETHOXYSILANE 17872-93-4 C10H16O2Si
BIS(PENTAFLUOROPHENYL)DIMETHOXYSILANE BIS(PENTAFLUOROPHENYL)DIMETHOXYSILANE 223668-68-6 C14H6F10O2Si
Dicyclopentyldichlorosilane Dicyclopentyldichlorosilane 139147-73-2 C10H18Cl2Si
3-(P-METHOXYPHENYL)PROPYLTRICHLOROSILANE 3-(P-METHOXYPHENYL)PROPYLTRICHLOROSILANE 163155-57-5 C10H13Cl3OSi
1,1,1,3,3-PENTAMETHYL-3-ACETOXYDISILOXANE 1,1,1,3,3-PENTAMETHYL-3-ACETOXYDISILOXANE 70693-47-9 C7H18O3Si2
3-PHENYLHEPTAMETHYLTRISILOXANE 3-PHENYLHEPTAMETHYLTRISILOXANE 546-44-1 C13H26O2Si3
TRIETHOXY(4-METHOXYPHENYL)SILANE  97 TRIETHOXY(4-METHOXYPHENYL)SILANE 97 21130-91-6 C13H22O4Si
PERLITE  BEADS  GRADE 5 PERLITE BEADS GRADE 5 93763-70-3
1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane 1,3,5,7-Tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane 27342-69-4 C12H24O4Si4
2-Chloroethyltriethoxysilane 2-Chloroethyltriethoxysilane 18279-67-9 C8H19ClO3Si
2-(ALLYLDIMETHYLSILYL)PYRIDINE 2-(ALLYLDIMETHYLSILYL)PYRIDINE 118722-54-6 C10H15NSi
4-PHENYLBUTYLTRICHLOROSILANE 4-PHENYLBUTYLTRICHLOROSILANE 17886-88-3 C10H13Cl3Si
ETHYL-4-(TRIETHOXYSILYL) BENZOATE ETHYL-4-(TRIETHOXYSILYL) BENZOATE 197662-64-9 C15H24O5Si
N-ALLYL-N N-BIS(TRIMETHYLSILYL)AMINE N-ALLYL-N N-BIS(TRIMETHYLSILYL)AMINE 7688-51-9 C9H23NSi2
ACETAMIDOPROPYLTRIMETHOXYSILANE ACETAMIDOPROPYLTRIMETHOXYSILANE 57757-66-1 C8H19NO4Si
VINYLPENTAMETHYLDISILOXANE VINYLPENTAMETHYLDISILOXANE 1438-79-5 C7H18OSi2
3-CYANOPROPYL(DIISOPROPYL)DIMETHYLAMINOSILANE 3-CYANOPROPYL(DIISOPROPYL)DIMETHYLAMINOSILANE 163794-91-0 C12H26N2Si
(3-PHENYLPROPYL)METHYLDICHLOROSILANE (3-PHENYLPROPYL)METHYLDICHLOROSILANE 13617-28-2 C10H14Cl2Si
SILICON TETRAISOCYANATE SILICON TETRAISOCYANATE 3410-77-3 C4N4O4Si
1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE 1,3-DI-N-OCTYLTETRAMETHYLDISILOXANE 18642-94-9 C20H46OSi2
TETRADECYLDIMETHYL(3-TRIMETHOXYSILYLPROPYL)AMMONIUM CHLORIDE TETRADECYLDIMETHYL(3-TRIMETHOXYSILYLPROPYL)AMMONIUM CHLORIDE 41591-87-1 C22H50ClNO3Si
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.