Du Søgte efter: Diphenyl(vinyl)phosphine+oxide


9.307  results were found

SearchResultCount:"9307"

Sort Results

Listevisning Easy View (new)

Tilfreds med din søgning? - rate den her.

Leverandør: Thermo Fisher Scientific
Beskrivelse: Poly(methylhydrosiloxane) is used in the reduction of esters to alcohols, catalyzed by a combination of titanocene dichloride and either n-BuLi or EtMgBr. It is a safer alternative to triethoxysilane, B22063, for reduction of phosphine oxides to phosphines, catalyzed by Ti(O-i-Pr)4. It is also used in greener amine synthesis by reductive amination as an alternative to borohydrides.
Leverandør: Thermo Fisher Scientific
Beskrivelse: Diphenyl phosphite (contains varying amounts of phenol and (C₆H₅O)₃P)
Leverandør: TCI
Beskrivelse: Diphenyl phosphite ≥75.0% (by HPLC) (contains ca. 5% Phenol)

Varenummer: (11982.)
Leverandør: Merck
Beskrivelse: These porous polymers, based on 2,6-diphenyl-p-phenylene oxide, are widely used as an adsorbent in both air collection and purge trap applications.
UOM: 1 * 10 g


Varenummer: (1680685.)
Leverandør: USP
Beskrivelse: USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.
UOM: 1 * 25 mg


Leverandør: Thermo Fisher Scientific
Beskrivelse: Diphenylether 99%
Leverandør: Apollo Scientific
Beskrivelse: Diphenylether

Leverandør: Thermo Fisher Scientific
Beskrivelse: Diphenylether ≥99%
Leverandør: TCI
Beskrivelse: Chalcone-α,β-epoxide ≥98.0% (by GC)

Leverandør: TCI
Beskrivelse: Diphenylether ≥99.0% (by GC)

Leverandør: TCI
Beskrivelse: Tetrahydrofuran ≥99.0% (by GC) stabilised for determination of vinyl chloride monomer

Varenummer: (598250-1)
Leverandør: Merck Millipore (Calbiochem‎)
Beskrivelse: A water-soluble, neutral, and odorless disulfide reducing agent that is more stable and effective than DTT. THP is comparable with TCEP as a reducing agent. Its reduction capacity against oxidised glutathione is 0,232 meq/g (TCEP has a reduction capacity of 0,182 meq/g). THP is also more resistant to air oxidation as compared to DTT.
UOM: 1 * 1 g


Leverandør: SIGMA ALDRICH MICROSCOPY
Beskrivelse: Thiazolyl Blue Tetrazolium Blue (MTT) may be used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.

Leverandør: Brady
Beskrivelse: For at opfylde GHS-reglerne (Globalt Harmoniseret System) skal identifikationselementerne være påsat de beholdere, som indeholder kemikalierne - især de nye advarselssymboler, faresætninger og sikkerhedsdatablade. De nye identifikationselementer blev vedtaget den 21. januar 2009 og supplerer REACH-forordningen med hvad angår registrering, evaluering, godkendelse og begrænsning af kemikalier.

Varenummer: (151-3154)
Leverandør: Dräger
Beskrivelse: <B>Cross sensitivity:</B> Styrene, vinyl acetate, acetaldehyde, acrolein, diesel fuel and furfuryl alcohol are indicated with a yellowish brown discoloration. 500 ppm octane, 5 ppm nitric oxide and 5 ppm nitrogen dioxide have no effect.
UOM: 1 * 10 Items


Leverandør: MP Biomedicals
Beskrivelse: Storage: +4°C, protect from light
3- (4,5-Dimethyl-2-thiazolyl-2)-2,5-diphenyl-tetrazolium bromide is used as a colorimetric metabolic activity indicator in cell viability assays. Thiazolyl Blue Tetrazolium Blue (MTT) is a dye used in measurement of cell proliferation. MTT produces a yellowish solution that is converted to dark blue, water-insoluble MTT formazan by mitochondrial dehydrogenases of living cells. The blue crystals are solubilized with acidified isopropanol and the intensity is measured colorimetrically at 570 nm. MTT has been used as a histochemical/cytochemical reagent and for the detection of NAD. ADP-linked enzyme systems in tissue cannot be detected with MTT, due to binding of the cation by the cyanide trap used. MTT is rapidly reduced to the formazan, which chelates with nickel, copper, and cobalt; the cobalt chelate has been used in oxidative systems.
Ring og spørg om pris
Lager for denne post er begrænset, men kan være til rådighed på et lager tæt på dig. Sørg for, at du er logget ind på webstedet, så tilgængelige bestand kan vises. Hvis call vises stadig, og du har brug for hjælp, bedes du ringe til os på - 43 86 87 88.
Lager for denne post er begrænset, men kan være til rådighed på et lager tæt på dig. Sørg for, at du er logget ind på webstedet, så tilgængelige bestand kan vises. Hvis call vises stadig, og du har brug for hjælp, bedes du ringe til os på - 43 86 87 88.
Dette produkt er mærket som begrænset og kan kun købes af godkendte Shipping konti. Hvis du har brug for yderligere hjælp, e-mail VWR Regulatory Department på Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
Dette produkt er blevet blokeret for salg via hjemmesiden. Kontakt kundeservice for mere information.
Det originale produkt er ikke længere tilgængelig. Den viste erstatning er tilgængelig.
Produkt (er) markeret med dette symbol er udgået - sælges indtil lageret er tomt. Alternativer kan være tilgængelige ved at søge med VWR-katalognummeret ovenfor. Hvis du har brug for yderligere hjælp, bedes du kontakte kundeservice på telefon 4386 8788
49 - 64 of 9.307
no targeter for Bottom